CSM_D4B-_N_DS_E_5_1
1
Safety Limit Switch
D4B-@N
Snap-action contact with certified direct
opening operation certification
.
Maintenance, seal, and resistance to
shock increased and direct opening
mechanism added.
Three-conduit switches and 2NC
switches are also available.
• Direct opening mechanism (NC contacts only) added to
enable opening contacts when faults occur, such as fused
contacts.
• Safety of lever settings ensured using a mechanism that
engages a gear between the operating position indicator plate
and the lever.
• Equipped with a mechanism that indicates the applicable
operating zone, as well as push-button switching to control left
and right motion.
• Head seal structure strengthened to improve seal properties
(TÜV: IEC IP67, UL: NEMA 3, 4, 4X, 6P, and 13).
• Wide standard operating temperature range:
–40 to 80°C (standard type).
• Models with gold-plated contacts added to the series to
enable handling microloads.
• Certified standards: UL, CSA, EN (TÜV), and CCC.
Model Number Structure
Model Number Legend
1. Conduit size
1: PG13.5 (1-conduit)
2: G1/2 (PF1/2) (1-conduit)
3: 1/2-14NPT (1-conduit)
4: M20 (1 conduit)
5: PG13.5 (3-conduit)
6: G1/2 (PF1/2) (3-conduit)
7: 1/2-14NPT (3-conduit)
8: M20 (3-conduit)
2. Built-in Switch
1: 1NC/1NO (snap-action)
3: 1NC/1NO (snap-action) gold-plated contacts
5: 1NC/1NO (slow-action) *
6: 1NC/1NO (slow-action) gold-plated contacts *
A: 2NC (slow-action)
B: 2NC (slow-action) gold-plated contacts
*Excluding D4B-@@81N and D4B-@@87N models.
3. Actuator
00: Switch box (without head)
11: Roller lever (resin roller)
15: Roller lever (stainless steel roller)
1R:Roller lever
(conventional D4B-compatible)
16: Adjustable roller lever
17: Adjustable rod lever
70: Top plunger
71: Top roller plunger
81: Coil spring
87: Plastic rod
Note: Contact your sales representative for details on models
with safety standard certification.
Be sure to read the “Safety Precautions” on page 14
and the “Precautions for All Safety Limit Switches” .
1 2 3
D4B-@@@@N
2
D4B-@N
Ordering Information
Set Model Numbers
Consult with your OMRON representative when ordering any models that are not listed in this table.
Safety Limit Switches (with Direct Opening Mechanism)
Actuator Conduit openings
1NC/1NO (Snap-action) 1NC/1NO (Slow-action) 2NC (Slow-action)
Model Direct
opening Model Direct
opening Model Direct
opening
Roller lever
(resin roller)
Pg13.5 D4B-1111N D4B-1511N D4B-1A11N
G1/2 (PF1/2) D4B-2111N D4B-2511N D4B-2A11N
1/2-14NPT D4B-3111N D4B-3511N D4B-3A11N
M20 D4B-4111N D4B-4511N D4B-4A11N
Pg13.5 (3-conduit) D4B-5111N D4B-5511N D4B-5A11N
G1/2 (3-conduit) D4B-6111N D4B-6511N D4B-6A11N
1/2-14NPT (3-conduit) D4B-7111N D4B-7511N D4B-7A11N
M20 (3-conduit) D4B-8111N D4B-8511N D4B-8A11N
Roller lever
(stainless steel
roller)
Pg13.5 D4B-1115N D4B-1515N D4B-1A15N
G1/2 (PF1/2) D4B-2115N D4B-2515N D4B-2A15N
1/2-14NPT D4B-3115N D4B-3515N D4B-3A15N
M20 D4B-4115N D4B-4515N D4B-4A15N
Pg13.5 (3-conduit) D4B-5115N D4B-5515N D4B-5A15N
Top plunger
Pg13.5 D4B-1170N D4B-1570N D4B-1A70N
G1/2 (PF1/2) D4B-2170N D4B-2570N D4B-2A70N
1/2-14NPT D4B-3170N D4B-3570N D4B-3A70N
M20 D4B-4170N D4B-4570N D4B-4A70N
Pg13.5 (3-conduit) D4B-5170N D4B-5570N D4B-5A70N
G1/2 (3-conduit) D4B-6170N D4B-6570N D4B-6A70N
1/2-14NPT (3-conduit) D4B-7170N D4B-7570N D4B-7A70N
M20 (3-conduit) D4B-8170N D4B-8570N D4B-8A70N
Top roller plunger
Pg13.5 D4B-1171N D4B-1571N D4B-1A71N
G1/2 (PF1/2) D4B-2171N D4B-2571N D4B-2A71N
1/2-14NPT D4B-3171N D4B-3571N D4B-3A71N
M20 D4B-4171N D4B-4571N D4B-4A71N
Pg13.5 (3-conduit) D4B-5171N D4B-5571N D4B-5A71N
G1/2 (3-conduit) D4B-6171N D4B-6571N D4B-6A71N
1/2-14NPT (3-conduit) D4B-7171N D4B-7571N D4B-7A71N
M20 (3-conduit) D4B-8171N D4B-8571N D4B-8A71N
3
D4B-@N
General-purpose Limit Switches
Note: 1. In addition to the above models, models compatible with the previous D4B Switches (with standard rotary levers) are available.
Model number examples: D4B-1@1RN(Pg13.5) or D4B-2@1RN(PF1/2)
2. Consult your OMRON representative for products.
Actuator Conduit openings
1NC/1NO (Snap-action) 1NC/1NO (Slow-action) 2NC (Slow-action)
Model Direct
opening Model Direct
opening Model Direct
opening
Adjustable roller
lever
Pg13.5 D4B-1116N
---
D4B-1516N
---
D4B-1A16N
---
G1/2 (PF1/2) D4B-2116N D4B-2516N D4B-2A16N
1/2-14NPT D4B-3116N D4B-3516N D4B-3A16N
Pg13.5 (3-conduit) D4B-5116N D4B-5516N D4B-5A16N
G1/2 (3-conduit) D4B-6116N D4B-6516N D4B-6A16N
1/2-14NPT (3-conduit) D4B-7116N D4B-7516N D4B-7A16N
Adjustable rod
lever
Pg13.5 D4B-1117N
---
D4B-1517N
---
D4B-1A17N
---
G1/2 (PF1/2) D4B-2117N D4B-2517N D4B-2A17N
1/2-14NPT D4B-3117N D4B-3517N D4B-3A17N
Pg13.5 (3-conduit) D4B-5117N D4B-5517N D4B-5A17N
G1/2 (3-conduit) D4B-6117N D4B-6517N D4B-6A17N
1/2-14NPT (3-conduit) D4B-7117N D4B-7517N D4B-7A17N
Coil spring
(non-directional)
Pg13.5 D4B-1181N
---
---
D4B-1A81N
---
G1/2 (PF1/2) D4B-2181N D4B-2A81N
1/2-14NPT D4B-3181N D4B-3A81N
Pg13.5 (3-conduit) D4B-5181N D4B-5A81N
G1/2 (3-conduit) D4B-6181N D4B-6A81N
1/2-14NPT (3-conduit) D4B-7181N D4B-7A81N
Plastic rod
(non-directional)
Pg13.5 D4B-1187N
---
D4B-1A87N
---
G1/2 (PF1/2) D4B-2187N D4B-2A87N
1/2-14NPT D4B-3187N D4B-3A87N
Pg13.5 (3-conduit) D4B-5187N D4B-5A87N
G1/2 (3-conduit) D4B-6187N D4B-6A87N
1/2-14NPT (3-conduit) D4B-7187N D4B-7A87N
D4B-@N
4
Replacement Parts
Switch Boxes
Operating Heads
*The Lever is not included with the Side Rotary Operating Head.
Levers
Note: Other types of lever are also available.
Conduit 1-conduit type 3-conduit type
Built-in switch PG13.5 G1/2 1/2-14NPT PG13.5 G1/2 1/2-14NPT
D4B-1100N D4B-2100N D4B-3100N D4B-5100N D4B-6100N D4B-7100N
D4B-1500N D4B-2500N D4B-3500N D4B-5500N D4B-6500N D4B-7500N
D4B-1A00N D4B-2A00N D4B-3A00N D4B-5A00N D4B-6A00N D4B-7A00N
Actuator Type Model
Side rotary *Standard D4B-0010N
Top plunger Plain D4B-0070N
Top roller plunger D4B-0071N
Flexible-rod Coil spring D4B-0081N
Plastic rod D4B-0087N
Actuator Length (mm) Diameter of roller Model
Standard 31.5 17.5 dia. D4B-0001N
Stainless steel roller lever 31.5 17.5 dia. D4B-0005N
Adjustable roller lever 25 to 89 19 dia. D4B-0006N
Adjustable rod lever 145 max. --- D4B-0007N
Interchangeable with D4B-0001 33.7 19 dia. D4B-000RN
1NC/1NO
(Snap-action)
1NC/1NO
(Slow-action)
2NC
(Slow-action)
5
D4B-@N
Specifications
Standards and EC Directives
Conforms to the following EC Directives:
•Machinery Directive
•Low Voltage Directive
•EN1088
•EN50041
Certified Standards
Snap-action Models
*Adjustable roller lever, adjustable rod lever, coil spring, and plastic
rod models only.
Slow-action Models
*Adjustable roller lever, adjustable rod lever, coil spring, and plastic
rod models only.
Certified Standard Ratings
TÜV (EN60947-5-1), CCC (GB14048.5)
Note: As protection against short-circuiting, use either a gI-type or gG-type 10 A fuse that conforms to IEC60269.
UL/CSA: (UL508, CSA C22.2 No. 14)
A600
Certification body Standard File No.
TÜV Rheinland
EN60947-5-1
(certified direct
opening mechanism)
GS-ET-15
EN60947-5-1
(uncertified direct
opening mechanism)
J50005477 *
UL UL508 E76675
CSA C22.2 No. 14 LR45746
CQC (CCC) GB14048.5 2003010305077612
J9851083
Certification body Standard File No.
TÜV Rheinland
EN60947-5-1
(certified direct
opening mechanism)
GS-ET-15
EN60947-5-1
(uncertified direct
opening mechanism)
J50005477 *
UL UL508 E76675
CSA C22.2 No. 14 LR45746
CQC (CCC) GB14048.5 2003010305077612
J9851083
Item Utilization category AC-15
Rated operating current (Ie)2 A
Rated operating voltage (Ue)400 V
Rated voltage Carry current Current (A) Volt-amperes (VA)
Make Break Make Break
120 VAC
240 VAC
480 VAC
600 VAC
10 A
60
30
15
12
6
3
1.5
1.2
7,200 720
6
D4B-@N
Ratings
Note: 1. The above values are continuous currents.
2. Inductive loads have a power factor of 0.4 or higher (AC) or a time constant of 7 ms or lower (DC).
3. Lamp loads have a inrush current of 10 times the normal current.
4. Motor loads have a inrush current of 6 times the normal current.
Characteristics
Note: 1. The above values are initial values.
2. The above values may vary depending on the model. Consult your OMRON sales representative for details.
*1. The degree of protection is tested using the method specified by the standard (EN60947-5-1). Confirm that sealing properties are sufficient for
the operating conditions and environment beforehand.
*2. The durability is for an ambient temperature of 5 to 35°C and ambient humidity of 40% to 70%. For further conditions, consult your OMRON
sales representative.
*3. –20 to 80°C for the flexible-rod type.
*4. The above values may vary depending on switching frequency, environmental condition, and relativity level, consult your OMRON sales
representative.
Rated voltage (V)
Non-inductive load (A) Inductive load (A)
Resistive load Lamp load Inductive load Motor load
NC NO NC NO NC NO NC NO
125 VAC
250
400
10
10
10
3
2
1.5
1.5
1
0.8
10
10
3
5
3
1.5
2.5
1.5
0.8
8 VDC
14
30
125
250
10
10
6
0.8
0.4
6
6
4
0.2
0.1
3
3
3
0.2
0.1
10
10
6
0.8
0.4
6
6
4
0.2
0.1
Inrush current 30 A max.
Degree of protection *1IP67 (EN60947-5-1)
Durability *2Mechanical 30,000,000 operations min. (snap-action)
10,000,000 operations min. (slow-action)
Electrical 500,000 operations min. (10 A resistive load at 250 VAC)
Operating speed 1 mm/s to 0.5 m/s
Operating frequency Mechanical 120 operations/minute
Electrical 30 operations/minute
Contact resistance 25 mΩ max.
Minimum applicable load *4
General load 180 mA resistive load at 5 VAC
Gold-clad contact 20 mA resistive load at 5 VAC
(N-level reference value)
Rated insulation voltage (Ui)600 V (EN60947-5-1)
Rated frequency 50/60 Hz
Protection against electric shock Class I (with ground terminal)
Pollution degree (operating environment) 3 (EN60947-5-1)
Impulse withstand voltage
(EN60947-5-1)
Between terminals
of same polarity 2.5 kV (snap-action)/4 kV (slow-action)
Between terminals
of different polarity 4 kV (slow-action)
Between each
terminal and ground
4 kV
Insulation resistance 100 MΩ min. (at 500 VDC) between terminals of the same polarity and between each
terminal and non-current-carrying part
Contact gap 2 × 2 mm min. (slow-action)
2 × 0.5 mm min. (snap-action)
Vibration resistance Malfunction 10 to 55 Hz, 0.75 mm single amplitude
Shock resistance Destruction 1,000 m/s2 min.
Malfunction 300 m/s2 min.
Conditional short-circuit current 100 A (EN60947-5-1)
Conventional enclosed thermal current (Ithe)20 A (EN60947-5-1)
Ambient operating temperature –40 to 80°C (with no icing) *3
Ambient operating humidity 95% max.
Weight Approx. 250 g
7
D4B-@N
Engineering Data
Electrical Durability (Snap-action) (Ambient temperature: 5 to 30°C, ambient humidity: 40 to 70%)
Structure and Nomenclature
Structure
250 VAC
125 VAC
1,000 1,000
500 500
300 300
100 100
50 50
30 30
10 10
480 VAC
250 VAC
500 VAC
(cosφ = 1) (cosφ = 0.4)
Operations (x 104)
Operations (x 104)
Switching current (A) Switching current (A)
Operating frequencies:
30 times/min., cosφ = 1
Operating frequencies:
30 times/min., cosφ = 0.4
The operating position indicator plate
Size Box
Pg13.5
G1/2
1/2-14NPT
Note: NBR is used for rubber parts.
1-conduit model 2-conduit model
Head
Conduit Opening
Roller
Ground Screw
Ground screws are provided on all
models for increased safety.
Lever (Form Lock Structure)
Seal Ring
Can be connected in any of four directions (except for
Roller Plunger Models, which can be connected at either
of 2 directions that differ by 90°)
The roller lever switch employs a
system which allows
selection of operation on only one
side (left or right)
or both sides without the use of
any tools.
Models are available with a wide range of conduits.
Nylon rollers used for superior resistance to wear.
The lever has an operating position indication plate
and grooves that mate every 90° to prevent slipping
between the rotary axis and lever.
Built-in Switch
Direct opening mechanism used for NC contact to
separate contact for faults, such as contact welding.
The heights of the NC and NO terminals are different
to enable easier wiring.
Cover
Sealing properties improved by using a X ring and
bearing-free structure.
Yes Yes
Yes Yes
Yes Yes
8
D4B-@N
Direct Opening Mechanism
1NO/1NC Contact (Snap-action)
Conforms to EN60947-5-1 Direct Opening (Only NC contact has a direct opening mechanism.)
1NC/1NO Contact (Slow-action) 2NC Contact (Slow-action)
Contact Form
Note: Terminal numbers are according to EN50013; contact symbols are according to IEC60947-5-1.
A
B
1. When contact welding occurs. 2. When contacts are being pulled apart.
Movable contact
Plunger
Safety cam
Fixed contact (NC)
Movable contact
blade
Safety cam directly
pushes up the
movable contact
blade.
3. When contacts are completely
pulled apart.
Contact spring
Return spring
Fixed contact (NC)
Movable contact
Plunger
Conforms to EN60947-5-1 Direct Opening
(Only NC contact has a direct opening mechanism.)
When contact welding occurs, the contacts are separated
from each other by the plunger being pushed in.
Fixed contact (NO)
Contact spring
Return spring
Fixed contact (NC)
Movable contact
Plunger
Conforms to EN60947-5-1 Direct Opening
(Both NC contacts have a direct opening mechanism.)
When contact welding occurs, the contacts are separated
from each other by the plunger being pushed in.
Model Contact Contact form Diagrams Explanation
D4B-@1@N1NC/1NO
(Snap-action)
D4B-@5@N1NC/1NO
(Slow-action)
D4B-@A@N2NC
(Slow-action)
13 14
11 12
Za
11-12
13-14
Stroke
ON
Only NC contact 11-12 has a
certified direct opening
mechanism.
Terminal numbers 11-12 and
13-14 cannot be used as unlike
poles.
11
23
12
24
Zb
11-12
23-24
Stroke
ON
Only NC contact 11-12 has a
certified direct opening
mechanism.
Terminal numbers 11-12 or
23-24 can be used as unlike
poles.
11
21
12
22
Zb
11-12
21-22
Stroke
ON
Both NC contacts 11-12 and
21-22 have a certified direct
opening mechanism.
Terminal numbers 11-12 and
21-22 can be used as unlike
poles.
9
D4B-@N
Dimensions and Operating Characteristics (Unit: mm)
Note: Omitted dimensions are the same as those for the Roller Lever
Type Models
D4B-1@@@N and D4B-5@@@N have a PG13.5 conduit
opening. D4B-2@@@N and D4B-6@@@N have a G1/2 conduit
opening.
D4B-3@@@N and D4B-7@@@N have a 1/2-14NPT conduit
opening.
Switches 1-conduit Models
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
*1. The lever can be set to any desired position by turning the operating position indicator.
*2. In terms of construction, the Switch is a General-purpose Limit Switch rather than a Safety Limit Switch.
Note: Variation occurs in the simultaneity of contact opening/closing
operations of 2NC contacts. Check contact operation.
*1. The operating characteristics of these Switches were measured
with the roller level set at 31.5 mm.
*2. The operating characteristics of these Switches were measured
with the rod level set at 140 mm.
*3. Only for slow-action models.
*4. Only for snap-action models.
*5. Reference values.
*6. Must be provided to ensure safe operation.
Model
Operating characteristics
D4B-@@11N D4B-@@15N D4B-@@16N
*1
D4B-@@17N
*2
Operating force
Release force
Pretravel
Overtravel
Movement differential
Direct opening travel
Direct opening force
Total travel
OF max.
RF min.
PT
PT (2nd) *3 *5
OT min.
MD max. *4
DOT min. *3 *6
*4 *6
DOF min. *6
TT *5
9.41N
1.47N
21°±3°
(45°)
50°
12°
35°
55°
19.61N
(75°)
9.41N
1.47N
21°±3°
(45°)
50°
12°
35°
55°
19.61N
(75°)
9.41N
1.47N
21°±3°
(45°)
50°
12°
35°
55°
19.61N
(75°)
2.12N
0.29N
21°±3°
(45°)
50°
12°
35°
55°
19.61N
(75°)
Conduit opening
5.3
7.3
56 16
131.3±1.2
23
8
28.3
22.5
99.5
77
74
15
31.5
43
11.5
31.5R
30±0.2
62±1
PT
21°
±3°
60±0.2
40+1
0
17.5 dia. × 6.6 resin roller
Cover
M5 × 12
Allen-head bolt
Set position
indicator plate
*1
Two, 5.3-dia.
mounting holes
Two, M4 × 12
cover mounting
screws
Four, M3.5 × 19.5
head
mounting screws
Roller Lever
D4B-@@11N
15
99.5
74
22.5
40+1
0
30±0.2
131.3±1.2
60±0.2
23
PT
21°
±3°
31.5R
11.5
8
5.3
7.3
Two, 5.3 dia.
mounting holes
Cover
Set position
indicator plate *1
M5 × 12
Allen-head bolt
17.5 × 7 stainless steel roller
Four, M3.5 × 19.5
head
mounting screws
Conduit opening
Two, M4 × 12
cover mounting
screws
43
31.5
77
62±1
56
16
28.3
Roller Lever (Stainless Steel Roller)
D4B-@@15N
1
2
3
23
8
5.3
7.3
Set position
indicator plate *1
43
15
31.5
99.5
77
74
22.5
53
46.8 16
28.3
60±0.2
64.4
71±1
Conduit opening
30±0.2
40+1
0
25 to 89R
Cover
19 dia. × 7
resin roller
M5 × 16
Allen-head bolts
Two, 5.3-dia.
mounting holes
Two, M4 × 12 cover
mounting screws
Four, M3.5 × 24.5
head
mounting screws
Adjustable Roller Lever *2
D4B-@@16N
23
5.4
8
5.3
7.3
43
15
31.5
99.5
77
74
22.5
56.8 16
28.3
Setting position
indicator *1
60
±0.2
30
±0.2
66
±1
Conduit opening
40
+1
0
145 max.
Cover
3 dia. × 160
stainless steel
rod
M5 × 12
Allen-head bolts
Two, 5.3-dia.
mounting holes
Two, M4 × 12 cover
mount
ing screws
Four, M3.5 × 24.5
head
mount
ing screws
Adjustable Rod Lever *2
D4B-@@17N
10
D4B-@N
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
*1. Be sure to adjust the dog to within 40 mm from the top end of the coil spring.
*2. In terms of construction, the Switch is a General-purpose Limit Switch rather than a Safety Limit Switch.
Operating characteristics Model D4B-@@70N D4B-@@71N
Operating force
Release force
Pretravel
Overtravel
Movement differential
Direct opening travel
Direct opening force
Total travel
OF max.
RF min.
PT max.
PT (2nd) *1 *3
OT min.
MD max. *2
DOT min. *4
DOF min. *4
TT *3
18.63 N
1.96 N
2 mm
(3 mm)
5 mm
1 mm
3.2 mm
49.03 N
(7 mm)
18.63 N
1.96 N
2 mm
(3 mm)
5 mm
1 mm
3.2 mm
49.03N
(7 mm)
Note: Variation occurs in the simultaneity of
contact opening/closing operations of
2NC contacts. Check contact
operation.
*1. Only for slow-action models.
*2. Only for snap-action models.
*3. Reference values.
*4. Must be provided to ensure safe
operation.
Free position
Operating position
FP max.
OP
38 mm
35±1 mm
51 mm
48±1 mm
Operating characteristics Model D4B-@@81N D4B-@@87N Note: Variation occurs in the simultaneity of
contact opening/closing operations of
2NC contacts. Check contact
operation.
Operating force
Pretravel
OF max.
PT max.
1.47 N
15°
1.47 N
15°
OP
PT
8
5.3
7.3
43
15
31.5
97
77
74
16
20
60
±0.2
30
±0.2
Conduit opening
40
+1
0
9.2 dia.
Cover
Stainless steel
plunger
Two, 5.3-dia.
mounting holes
Two, M4 × 12 cover
mounting screws
Four, M3.5 × 19.5
head
mounting screws
Top Plunger
D4B-@@70N
Top Roller Plunger
D4B-@@71N
OP
PT
8
5.3
7.3
43
15
31.5
97
77
74
20
16
60±0.2
30±0.2
Conduit opening
40+1
0
9.2 dia.
Cover
12.7 dia. × 4.8
stainless steel roller
Two, 5.3-dia.
mounting holes
Two, M4 × 12 cover
mounting screws
Four, M3.5 × 19.5
head
mounting screws
Coil Spring (Non-directional)
*2
D4B-
@@
81N
29.1
8
5.3
7.3
43
15
31.5
77
2.7
74
16 15.7
203.5±1.2
60±0.2
30±0.2
Conduit
opening
40+1
0
18.2 dia.
Seal cap
Stainless steel coil spring
6.6 dia.
Cover
(40) *1
Four, M3.5 × 7
mounting screws
Two, 5.3-dia.
mounting holes
Two, M4 × 12 cover
mounting screws
The Switch can be
actuated in any
direction except to
the axis center.
Plastic Rod (Non-directional)
*2
D4B-
@@
87N
29.1
8
5.3
7.3
43
15
31.5
77
2.7
74
16 15.7
203.5±1.2
60±0.2
30±0.2
Conduit
opening
40+1
0
18.2 dia.
(40) *1
6.6 dia.
Plastic rod
Seal cap
Cover
Four, M3.5 × 7
head mounting
screws
Two, 5.3-dia.
mounting holes
Two, M4 × 12 cover
mounting screws
The Switch can be
actuated in any
direction except to
the axis center.
D4B-@N
11
3-conduit Switches
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
*1. The lever can be set to any desired position by turning the operating position indicator.
*2. In terms of construction, the Switch is a General-purpose Limit Switch rather than a Safety Limit Switch.
Note: Variation occurs in the simultaneity of contact opening/closing operations of 2NC contacts. Check contact operation.
*1. The operating characteristics of these Switches were measured with the roller level set at 31.5 mm.
*2. The operating characteristics of these Switches were measured with the rod level set at 140 mm.
*3. Only for slow-action models.
*4. Only for snap-action models.
*5. Reference values.
*6. Must be provided to ensure safe operation.
Model
Operating characteristics
D4B-@@11N D4B-@@15N D4B-@@16N
*1
D4B-@@17N
*2
Operating force
Release force
Pretravel
Overtravel
Movement differential
Direct opening travel
Direct opening force
Total travel
OF max.
RF min.
PT
PT (2nd) *3 *5
OT min.
MD max. *4
DOT min. *3 *6
*4 *6
DOF min. *6
TT *5
9.41 N
1.47 N
21°±3°
(45°)
50°
12°
35°
55°
19.61 N
(75°)
9.41 N
1.47 N
21°±3°
(45°)
50°
12°
35°
55°
19.61 N
(75°)
9.41 N
1.47 N
21°±3°
(45°)
50°
12°
35°
55°
19.61 N
(75°)
2.12 N
0.29 N
21°±3°
(45°)
50°
12°
35°
55°
19.61 N
(75°)
17.5 dia. x 6.6 resin roller
Two, caps
3-conduit opening
Cover
Two, 5+0.15
0 -dia.
holes (depth: 6)
40 to 42
Roller Lever
D4B-@@11N
M5 x 12
Allen-head bolt
Operating position
indicator *1
Six, 5.3-dia.
mounting holes
Four, M3.5 x 10
cover mounting screws
Four, M3.5 x 24.5
head
mounting screws
31.5R
27±0.2
28.5
30±0.2
40 to 42
66.4 50.9
5.3
23
PT
21°
±3°
31.5R
11.5
Six, 5.3 dia.
mounting holes
Cover
M5 × 12
Allen-head
bolt
17.5 dia. × 7
stainless steel
roller
Four, M3.5 × 24.5
head
mounting screws
3-conduit opening
Four, M3.5 × 10 cover
mounting screws
Two, caps
17.2
38.8
35.7
97.9
75.4
71.4
59.3±0.2
18
22.5
62±1
56±1
16 28.3±1
Operating position
indicator *1
63
57
51 Two, 5+0.15
0 -dia.
holes (depth: 6)
Roller Lever
D4B-@@15N
129.7±1.2
66.4
Adjustable Roller Lever *2
D4B-@@16N
19 dia. x 7 resin roller
Two, caps Cover
3-conduit opening
25 to 89R
40 to 42
Two, 5+0.15
0 -dia.
holes (depth: 6)
Operating
position
indicator *1
M5 x 16
Allen-head
bolts
Six, 5.3-dia.
Mounting holes
Four, M3.5 x 10 Cover
mounting screws
Four, M3.5 x 24.5
head
mounting screws
Adjustable Rod Lever *2
D4B-@@17N
145 max.
Cover
3-conduit opening
40 to 42
Two, 5 +0.15
0 -dia.
holes (depth: 6)
3 dia. x 160
stainless steel rod
Operating position
indicator *1
M5 x 12
Allen-head
bolts
Six, 5.3-dia.
mounting holes
Four, M3.5 x 10 cover
mounting screws
Four, M3.5 x 24.5
head
mounting screws
Two, caps
12
D4B-@N
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
*1. Be sure to adjust the dog to within 40 mm from the top end of the coil spring.
*2. In terms of construction, the Switch is a General-purpose Limit Switch rather than a Safety Limit Switch.
Operating characteristics Model D4B-@@70N D4B-@@71N
Operating force
Release force
Pretravel
Overtravel
Movement differential
Direct opening travel
Direct opening force
Total travel
OF max.
RF min.
PT max.
PT (2nd) *1 *3
OT min.
MD max. *2
DOT min. *4
DOF min. *4
TT *3
18.63 N
1.96 N
2 mm
(3 mm)
5 mm
1 mm
3.2 mm
49.03 N
(7 mm)
18.63 N
1.96 N
2 mm
(3 mm)
5 mm
1 mm
3.2 mm
49.03N
(7 mm)
Note: Variation occurs in the simultaneity of
contact opening/closing operations of
2NC contacts. Check contact
operation.
*1. Only for slow-action models.
*2. Only for snap-action models.
*3. Reference values.
*4. Must be provided to ensure safe
operation.
Free position
Operating position
FP max.
OP
38 mm
35±1 mm
51 mm
48±1 mm
Operating characteristics Model D4B-@@81N D4B-@@87N
Operating force
Pretravel
OF max.
PT max.
1.47 N
15°
1.47 N
15°
Note: Variation occurs in the simultaneity of
contact opening/closing operations of
2NC contacts. Check contact
operation.
Top Plunger
D4B-@@70N
Six, 5.3-dia.
mounting holes
Four, M3.5 x 10 cover
mounting screws
Two, caps
9.2 dia.
Cover
3-conduit opening
40 to 42
Stainless steel
plunger
Four, M3.5 x 19.5
head
mounting screws
Two, 5 +0.15
0 -dia.
holes (depth: 6)
Top Roller Plunger
D4B-@@71N
Two, caps
9.2 dia.
Cover
3-conduit opening
40 to
42
Two, 5 +0.15
0 -dia.
holes (depth: 6)
12.7 dia. x 4.8
stainless steel roller
Six, 5.3-dia.
mounting screws
Four, M3.5 x 10
cover mounting screws
Four, M3.5 x 19.5
head
mounting screws
95.4
Coil Spring *2
D4B-@@81N
18.2 dia.
40 to 42
Stainless steel coil spring
Seal cap
Two, caps
6.6 dia.
Cover
3-conduit
opening
(40) *1
Two, 5+0.15
0 -dia.
holes (depth: 6)
The Switch can be actuated
to all directions except to
the axis center
Four, M3.5 x 7
head mounting screws
Six, 5.3-dia.
mounting holes
Four, M3.5 x 10 cover
mounting screws
Plastic Rod *2
D4B-@@87N Plastic rod
18.2 dia.
40 to 42
Seal cap
Two, caps
6.6 dia.
Cover
3-conduit opening
(40) *1
Two, 5
+0.15
0
-dia.
holes (depth: 6)
The Switch can be actuated
to all directions except to the
axis center.
Four, M3.5 x 7
head mounting screws
Six, 5.3-dia.
mounting holes
Four, M3.5 x 10
cover mounting screws
201.9±1.2
13
D4B-@N
Levers (Applicable for Roller Lever Models only)
Note: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
2. Safety Limit Switch specifications are satisfied with D4B-@@@@N Levers only (example: D4B-0001N).
The D4B-0006N Adjustable Roller Lever and D4B-0007N Adjustable Rod Lever, however, cannot be used. Do not order them for a Side
Rotary Operating Head.
17.5 dia. x 6.8 nylon roller
7.3 dia.
M5 hexagon
socket head
screw
6.4
adjusting
scale
19 dia. x 7 nylon roller
M5 hexagon
socket head
screw
Adjustable
range
(25 to 89)
D4B-0001N
Roller Lever
D4B-0005N
Roller Lever
(Stainless Steel Roller) D4B-0006N
Adjustable Roller Lever
15
11.5
17.5 dia. × 7
stainless steel roller 12
17
31.5R 160
5.4
21.6
12.5
28
17
11
Stainless rod
145
max.
3 dia.
M5 hexagon
socket head
screw
D4B-0007N
Adjustable Rod Lever
63±0.3 79.8
16
Roller Lever
WL-1A300 17.5 dia. × 7
stainless
steel roller
7.3+0.1 dia.
0
Note: Reverse the indicator plate when mounting.
12
33.7
18
17.8
12
40.2±0.8
23.6
38 54.8
16
Note: Reverse the indicator plate when mounting.
11.4
D4B-000RN
WL-1A118
19 dia. x 7 nylon roller
7.3 dia.
M5 hexagon
socket head
screw
Roller Lever (Compatible with
Previous D4B Model)
Roller Lever
17.5 dia. × 30
nylon roller
7.3+0.1 dia.
0
M5 hexagon socket
head screw (length: 12)
M5 hexagon
socket head
screw (length: 12)
20.1±0.8
11.5
Roller Lever
WL-1A106
50 dia. × 6 nylon roller
M5 hexagon
socket head screw
7.3 dia.
Note: Reverse the indicator plate when mounting.
M5 hexagon
socket head
screw (length: 12)
17.9
12.6
11.4
38 54.3
16
16.9
12.1
11.5
Roller Lever
WL-1A400
17 dia. × 6 bearing roller
7.3 dia.
M5 hexagon
socket head
screw
Note: Reverse the indicator plate when mounting.
5.5
13.4
12.8
400±2
8.0±0.4
611
65±2
9
150±10
60±10
(23.6)
611
7.5
7.5
13.8
5.5 33
25 max.
Adjustable Rod Lever
WL-3A100
Spring Rod Lever
WL-4A201
Resin Loop Lever
D4A-F00
Note: Reverse the indicator plate when mounting.
Note: Reverse the indicator plate
when mounting. Note: Reverse the indicator plate when mounting.
25.5
max.
7.3 dia.
Adjustable range (350 to 380)
3.2 dia. stainless steel
operation rod
M5 × 16 hexagon
socket head screw
M5 hexagon socket head screw
2 dia. stainless
steel spring
Adjustable
range
(290 max.)
13 dia.
7.3 dia.
M5 hexagon socket head screws
M5 hexagon socket head screw
4 dia. Nylon
31.5
15
17
11.8
11.5
97
15.9
20
26
20.2
12.8
3.2
38R
---
14
D4B-@N
Application Precaution
Safety Precautions
Refer to the “Precautions for All Switches” and “Precautions for All Safety Limit Switches”.
•Do not use the Switch submerged in oil or water, or in locations
continuously subject to splashes of oil or water. Doing so may
result in oil or water entering the Switch interior. (The IP67 degree
of protection specification for the Switch refers to water penetration
while the Switch is submersed in water for a specified period of
time.)
•Always attach the cover after completing wiring and before using
the Switch. Also, do not turn ON the Switch with the cover open.
Doing so may result in electric shock.
Appropriate Tightening Torque
*Apply a tightening torque of 0.78 to 0.88 N·m to three-conduit
models.
Mounting
Use four M5 screws with washers to mount the standard model. Be
sure to apply the proper torque to tighten each screw. The 3-conduit
models can be mounted more securely by using the four screws plus
two 5 mm diameter studs, each of which has a maximum height
of 4.8 mm as shown below.
Mounting Dimensions (M5)
Changes in Actuator Mounting Position
•To change the angle of the lever, loosen the Allen-head bolts on
the side of the lever.
•The operating position indicator plate * has protruding parts which
engage with the lever, thus allowing changes to the lever position
by 90°.
•The back of the operating position indicator plate * has no
protruding parts. If this plate is turned over and attached, any angle
within a 360° range can be set. Do not turn over the plate, however,
when using the D4B-@N as a switch with a certified direct opening
mechanism. For an SUVA- or BIA-certified application, make sure
that the lever engages with the operating position indicator plate
securely so that the lever will not slip.
*The operating position indicator plate: Refer to page 7.
Changes in Head Mounting Position
By removing the screws on the four corners of the head, the head can
be reset in any of four directions. Make sure that no foreign materials
will penetrate through the head.
Changing the Operating Direction
Switches with Roller Levers
The operating direction of the lever can be easily
changed without using any tools. It can be set to
clockwise operation (CW) or counterclockwise
(CCW) operation.
Use the procedure given at the right to change
the operating direction.
Operating section
(on back of Head) Operating procedure
1. Remove the four Head set screws and remove the Head
from the Switch Box.
2. Turn the bottom of the Head toward you, press in the Head
Cover shown in the diagram at the left, and turn the Cover
clockwise or counterclockwise.
Note: The factory setting is for “CW.CCW.”
3. The “CW” setting is for clockwise operation and the “CCW”
setting is for counterclockwise operation. Set the Cover to
the desired position.
Head Cover
Operating
position
mark
(arrow)
Precautions for Safe Use
Precautions for Correct Use
Type Appropriate tightening
torque
1 M3.5 terminal screw 0.59 to 0.78 N·m
2 Cover mounting screw *1.18 to 1.37 N·m
3 Head mounting screw 0.78 to 0.88 N·m
4 M5 body mounting screw 4.90 to 5.88 N·m
5 Connector 1.77 to 2.16 N·m
6Lever Mounting Screws (Roller
Levers) 4.90 to 5.88 N·m
--- Cap screw
(for three-conduit models) 1.27 to 1.67 N·m
Be sure to tighten each
screw of the D4B-@N
properly, otherwise the
D4B-@N may malfunction. (1)
(2)(5)
(3)
(4)
(6)
−0.05
−0.15
30
60 59.3±0.1 30
40
42
27±0.1
5−0.05 dia. height: 5 max.
−0.15
Standard Model 3-conduit Model
Studs
15
D4B-@N
Wiring
Do not connect the bare lead wires directly to the terminals but be
sure to connect each of them by using an insulation tube and M3.5
round crimp terminals and tighten each terminal screw within the
specified torque range.
The proper lead wire is 20 to 14 AWG (0.5 to 2.5 mm2) in size.
Make sure that all crimp terminals come into contact with the casing
or cover as shown below, otherwise the cover may not be mounted
properly or the D4B-@N may malfunction.
Conduit Opening
•Make sure that each connector is tightened within the specified
torque range.
The casing may be damaged if the connector is tightened
excessively.
•If the 1/2-14NPT is used, cover the cable and conduit end with
sealing tape in order to ensure IP67.
•The Pg13.5 connector must be Nippon Flex’s ABS-08 Pg13.5 or
ABS-12 Pg13.5.
•Use an OMRON SC-series Connector (sold separately) that is
suited to the cable in diameter.
•Properly attach the provided conduit cap to the unused conduit
opening and securely tighten the cap screw within the specified
torque when wiring the D4B-@N.
Others
•The load for the actuator (roller) of the Switch must be imposed on
the actuator in the horizontal direction, otherwise the actuator or
the rotating axis may be deformed or damaged.
•
When using a long lever model like the D4B-
@@
16N or D4B-
@@
17N,
the Switch may telegraph. To avoid telegraphing, take the following
precautions.
1. Set the lever to operate in one direction.
2. Modify the rear end of the dog to an angle of 15° to 30° as
shown below or to a secondary-degree curve.
3. Modify the circuit so as not to detect the wrong operating
signals.
Ordering Method
D dia.
dz dia.
dz dia.: 3.7 mm
D dia.: 4.5 mm
B: 7.0 mm
L: 20.2 mm
F: 7.7 mm
l: 9.0 mm
Casing
Cover
Terminal screw
Crimp terminal
Terminal screw
Casing
Terminal screw
Cover
Crimp terminal
Correct
Correct
Incorrect
Incorrect
Crimp
terminal
Crimp terminal
Crimp terminal
Correct
Incorrect
Dog
Dog
Correct Incorrect
θθ
θ ≥ 30°15° ≤ θ ≤ 30°
Individual model numbers
Set model number Switch Box Head Lever *
Example: D4B-2111N D4B-2100N D4B-0010N D4B-0001N
*Roller Levers only.
+
+
+
+
The D4B-@N uses a block mounting
method. Switches can be ordered either as
sets or as individual parts. If a set is
ordered, the Switch will be shipped with all
parts assembled.
Note: For Switches with Roller Levers, do
not order just the Head and Lever, or
just the Switch Box and Lever.
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
•
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
•
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
•
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2011.3
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2011 All Right Reserved.
