For the Latest Information
On the Internet: www.sti.com or www.omron.ca
OMRON SCIENTIFIC TECHNOLOGIES, INC.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
G
G40
Guard Lock Safety-Door Switch
• Release protective cover locks using controller signals or pushbut-
ton switches after the cutting tool stops moving due to inertia
• A mechanical lock is applied automatically when the Operation
Key is inserted. A high level of safety is achieved using a mecha-
nism where the lock is only released when voltage is applied to the
solenoid.
• Conforms to EN (TÜV) standards corresponding to the CE marking
• Certified by UL, CSA and CCC standards
• The Switch contact is opened by a direct opening mechanism (NC
contacts only) when the protective cover is opened.
Direct opening mechanism that is EN-certified is indicated by
on the Switch
• Auxiliary release key ensures easy maintenance and unlocks the
door in the case of a power failure.
• Tough aluminum die-cast body incorporating a switch box with
degree of protection satisfying IP67, UL, and CSA TYPE6P, 13
• Equipped with a horizontal and vertical conduit opening
• Models incorporating easy-to-see indicators for monitoring and
those using an adjustable Operation Key for a swinging door are
available
• The mounting direction of the head can be changed to allow the
Operation Key to be inserted from four directions
Safety Interlock Switches
D4BL D4BL
S
Standards and EC Directives
Conforms to the following EC Directives:
• Machinery Directive
• Low Voltage Directive
• EN 1088
Certified Standards
Certification
body Standard File No.
TÜV Rheinland
EN 60947-5-1
(certified direct opening)
GS-ET-19
R9451050
UL UL 508 E76675
CSA CSA C22.2, No. 14 LR45746
CQC (CCC) GB14048.5 2003010305073836
Specifications
Certified Standard Ratings
TÜV (EN 60947-5-1), CCC (GB14048.5)
Item Standard Model Indicator Model
Utilization category AC-15 AC-15
Rated operating current (Ie) 3 A 6 A
Rated operating voltage (Ue) 250 V 115 V
Note: Use a 10 A fuse type gI or gG that conforms to IEC 60269 as a short-
circuit protection device.
UL/CSA (UL 508, CSA C22.2 No. 14)
A300
Rated
voltage
Carry
current
Current (A) Volt-amperes (VA)
Make Break Make Break
120 VAC 10 A 60 6 7,200 720
240 VAC 30 3
Note: The UL/CSA certified rating for products with indicators (-A) is
6 A/115 VAC.
For the Latest Information
On the Internet: www.sti.com or www.omron.ca
OMRON SCIENTIFIC TECHNOLOGIES, INC.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
G
G41
D4BL Safety Interlock Switches
Connections
Model
Contact
(door open/closed
detection and lock
monitor)
Contact form
Operating pattern Remarks
Lock monitor
Door open/
closed
detection
D4BL-□C□□-□1NC/1NO+1NC
D4BL-□D□□-□2NC+1NC
Note: The EN-certified direct opening mechanism is indicated by on the ‹switch.
Contact Forms
Diagrams show state with key inserted and lock engaged.
31 32 11 12
24
23
Zb
Door
open/closed detection
Lock monitor
12
22
113231
21
Zb
Door
open/closed detection
Lock monitor
Stroke
ON
Lock position
Operation Key
insertion completion
position
Extraction
completion
position
Stroke
ON
Lock position
Operation Key
insertion completion
position
Extraction
completion
position
Only NC contacts
11-12 and 21-22
have a certified
direct opening
mechanism.
The terminals 11-12
and 21-22 can be
used as unlike poles.
Only NC contacts 11-12
have a certified direct
opening mechanism.
The terminals 11-12
and 23-24 can be
used as unlike poles.
(Safety circuit side)
(Monitor circuit side)
Contact Form (D4BL-2GRD-AT)
For the Latest Information
On the Internet: www.sti.com or www.omron.ca
OMRON SCIENTIFIC TECHNOLOGIES, INC.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
G
G42
D4BL Safety Interlock Switches
Dimensions and Operating Characteristics (mm)
D4BL-□□□□-□
Operating
characteristics D4BL-□□□□
Key insertion force
Key extraction
force
19.61 N max.
19.61 N max.
Movement before
being locked 15 mm max.
Total Travel 23 mm min.
D4BL-2GRD-AT
Operating
characteristics D4BL-2GRD-AT
Key insertion force
Key extraction
force
19.61 N max.
19.61 N max.
Movement before
being locked 15 mm max.
Total Travel 23 mm min.
31.5
17
7
37.5
86
+1
0
112+1
0
16
39.6
42.6
Conduit opening
Conduit opening
Indictor
(Orange: Switch OFF)
Indicator
(Green:
Solenoid ON).
5.5
Conduit opening
(116.5) 10
34.2
74±0.1
100±0.1
6.8
(123.5)
Cover
Four, 5.3 dia.
Mounting
holes
Four, M3.5 head
clamping screws
Four, M4
cover
clamping
screws
Notes: 1. Unless otherwise specified, a
tolerance of ±0.4 mm applies to
all dimensions.
2. There are fluctuations in the
contact ON/OFF timing for 2NC
contacts. Confirm performance
before application.
Switches
78.7 20
12
40.7
25.8 15.6 7.3 15
5.3 5.3
36
11.8
5.6
2.6 7.5
20
4 dia.
Two, 2.65R
Long mounting hole
53.7 13
40 52.4
15.6
25.8
11.8
5.6
36
2.6
5.3 11.9 7.5
20
5.3 x 7.3 long mounting hole
4 dia.
36
11.8
(37.8)
19.5
2.6
17.5
34.6
(80.7)
40
30
30 5.6
26
18°
18°
15.6
12
420
40
M4 Allen-head bolt
5.3 dia.
4 dia.
Operation Keys
D4BL-K1
D4BL-K2
D4BL-K3
For the Latest Information
On the Internet: www.sti.com or www.omron.ca
OMRON SCIENTIFIC TECHNOLOGIES, INC.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
G
G43
D4BL Safety Interlock Switches
Dimensions and Operating Characteristics (continued) (mm)
With Operation Key Inserted
D4BL + D4BL-K1 D4BL + D4BL-K2 D4BL + D4BL-K3
(20±0.15)
(20±0.15)
(35)
(41)
(41) (12)
53.5 min. 57 max.
53.5 min. 57 max.
Horizontal direction
Operation Key
insertion radius
R ≥ 1200
Vertical direction
Operation Key
insertion radius
R ≥ 1000
(41) (13)
(40±0.15)
(41)
(35)
54.5 min. 58 max.
54.5 min. 58 max.
Horizontal direction
Operation Key
insertion radius
R ≥ 1200
Vertical direction
Operation Key
insertion radius
R ≥ 1000
(30±0.15)
(41) (40)
(35)
(41)
81.5 min. 85 max.
81.5 min. 85 max.
Horizontal direction
Operation Key
insertion radius
R ≥ 250
Vertical direction
Operation Key
insertion radius
R ≥ 1000
Notes: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
2. In the above diagrams, the Operation Key is inserted from the front.
For the Latest Information
On the Internet: www.sti.com or www.omron.ca
OMRON SCIENTIFIC TECHNOLOGIES, INC.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
G
G44
D4BL Safety Interlock Switches
Application Example with G9SA Safety Relay Unit
G9SA-321-T□ (24 VAC/VDC) + D4BL-□D□A-□, - □D□B-□(Mechanical Lock Type) Circuit Diagram
(Manual Reset)a
Timing Chart
Motor rotation
OFF-delay time
S1: Safety Limit Switch
with direct opening mechanism
(D4B-N, D4N, D4F)
S2: Guard Lock Safety-door Switch
S3: Reset switch
S4: Lock release switch
KM1 and KM2: Magnetic Contactor
M: 3-phase motor
Limit switch S1
Reset switch
S3
K1 and K2
(NC)
K1 and K2
(NO)
K3 and K4
(NC)
K3 and K4
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
Operation
instruction
Lock release
signal
S4
Stop signal
Guard opens
Guard can be opened
Guard Lock
Safety-door
Switch S2
TH
SA
S2
OPEN
S4
KM1
KM2
31
32
11
12
A1 A2
T11 T12 T31 T32
13 23 33 43 53 61
1
2
3
4
5
6
JP
K3
3
4
2
5
K4
K1
K2
K1
K1
PE
T21 T23 T22
A B 14 24 34
KM1 KM2
KM1
KM2
M
44 54 62
K2
K2
6
K3
1
a
b
Off-Delay
Timer
Control
Circuit
K4
a
b
Operation
instruction
Feedback loop
Stop signal
Guard
Lock release signal
KM1
KM2
S3
Motor controller
S1
PLC
21
22
Note: This example circuit is for Category 3.
For the Latest Information
On the Internet: www.sti.com or www.omron.ca
OMRON SCIENTIFIC TECHNOLOGIES, INC.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
G
G45
D4BL Safety Interlock Switches
Switch
D4BL – □ □ □ □ – □
1 2 3 4 5
1 Conduit Size (2-conduit)
1: Pg13.5
2: G1/2
3: 1/2-14 NPT
4: M20
2 Built-in Switch (with Safety Switch and Lock Monitor Switch Contacts)
C: 1NC/1NO (slow-action) + 1NC (slow-action)
D: 2NC (slow-action) + 1NC (slow-action)
3 Head Mounting Direction
R: Four mounting directions possible (Right-side mounting at shipping)
4 Door Lock and Release (Auxiliary Release Key in Incorporated by all models)
A: Mechanical lock/24 VDC solenoid release
B: Mechanical lock/110 VAC solenoid release
G: 24 VDC solenoid lock/mechanical release
5 Indicator
Blank: Without indicator
A: 10 to 115 VAC or VDC driving (with orange and green LED indicator unit)
Switch
D4BL – 2 G R D - AT
1 2 3 4 5
1 Conduit Size (2-conduit)
2: G1/2
2 Built-in Switch (with Safety Switch and Lock Monitor Switch Contacts)
G: 2NC (slow-action) + 2NC (slow-action)
3 Head Mounting Direction
R: Four mounting directions possible (Right-side mounting at shipping)
4 Door Lock and Release
D: Mechanical lock/24 VDC solenoid release
5 Indicator Lamp
A: Equipped with an orange and green LED display unit)
Ordering
Operation Key
D4BL-K □
1
1 Operation Key Type
1: Horizontal mounting
2: Vertical mounting
3: Adjustable mounting (horizontal)
Model Number Structure
Type Model
Horizonal mounting
D4BL-K1
Vertical mounting
D4BL-K2
Adustable mounting
D4BL-K3
Lock
method
Conduit
size
Voltage for
solenoid
Without indicator
1NC/1NO+ 1NC
(Slow-action)
With LED indicator
1NC/1NO+ 1NC
(Slow-action)
Without indicator
2NC+ 1NC
(Slow-action)
With LED indicator
2NC+ 1NC
(Slow-action)
Mechanical
lock
PG13.5 24 VDC D4BL-1CRA D4BL-1CRA-A D4BL-1DRA D4BL-1DRA-A
110 VAC D4BL-1CRB D4BL-1CRB-A D4BL-1DRB D4BL-1DRB-A
G1/2 24 VDC D4BL-2CRA D4BL-2CRA-A D4BL-2DRA D4BL-2DRA-A
110 VAC D4BL-2CRB D4BL-2CRB-A D4BL-2DRB D4BL-2DRB-A
1/2-14NPT 24 VDC D4BL-3CRA D4BL-3CRA-A D4BL-3DRA D4BL-3DRA-A
110 VAC D4BL-3CRB D4BL-3CRB-A D4BL-3DRB D4BL-3DRB-A
M20 24 VDC D4BL-4CRA D4BL-4CRA-A D4BL-4DRA D4BL-4DRA-A
110 VAC D4BL-4CRB D4BL-4CRB-A D4BL-4DRB D4BL-4DRB-A
Solenoid lock
Pg 13.5 24 VDC D4BL-1CRG D4BL-1CRG-A D4BL-1DRG D4BL-1DRG-A
G1/2 24 VDC D4BL-2CRG D4BL-2CRG-A D4BL-2DRG D4BL-2DRG-A
1/2-14NPT 24 VDC D4BL-3CRG D4BL-3CRG-A D4BL-3DRG D4BL-3DRG-A
M20 24 VDC D4BL-4CRG D4BL-4CRG-A D4BL-4DRG D4BL-4DRG-A
List of Models
Switches (Operation Keys are sold separately)
= Highlighted Rapid Delivery products
are available for shipment today or
within FIVE days.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Omron:
D4BL-1CRB D4BL-1DRG D4BL-2CRA-A D4BL-2CRB D4BL-2DRG D4BL-2DRG-A D4BL-3CRC-A D4BL-3CRG
OKUMA D4BL-3DRA D4BL-3DRA-A D4BL-3DRG-A