General Purpose
Power Relay SZR-MY Series
FEATURES
• Small package design
• DPDT has a fine silver
contact with 5 A capability
• 4PDT has a gold-plated
silver contact with 3 A
capability
• High dielectric strength
(1,800 Vac)
• High reliability and long life
• Ultra-high sensitivity with
quick response time
(20 ms max.)
• Options include LED
indicator, diode protection,
and LED indicator/diode
protection
• UL listed, CE certified,
CSA certified
TYPICAL APPLICATIONS
• Control panels
• Elevator panels
• Machine tools
• Test equipment
WARNING
PERSONAL INJURY
DO NOT USE these
products as safety or
emergency stop devices or
in any other application
where failure of the product
could result in personal
injury.
Failure to comply with
these instructions could
result in death or serious
injury.
®
SZR-MY Series general-purpose power relays are designed for a wide
range of applications including power as well as logic control for factory
machines and control panels.
SZR-MY Series relays have a small package design for multiple
application needs. Relays are available in two configurations: DPDT with a
5A load and 4PDT with a 3 A load.
One standard and three options are available: LED indicator, internal
surge protection diode, and LED indicator/diode protection. Honeywell’s
global sales and distribution channels ensure a rapid response and excellent
customer service.
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet is for reference only. Do
not use this document as a product installation guide.
• Complete installation, operation, and maintenance information is provided
in the instructions supplied with each product.
Failure to comply with these instructions could result in death or
serious injury.
Sensing and Control
General Purpose
Power Relays SZR-MY Series
RELAY MODEL SELECTION GUIDE
Type Terminal Contact Catalog Listing
DPDT SZR-MY2-1
Standard Plug-in/Solder
4PDT SZR-MY4-1
DPDT SZR-MY2-1P
PCB
4PDT SZR-MY4-1P
LED Indicator Plug-in/Solder DPDT SZR-MY2-N1
4PDT
SZR-MY4-N1
DIODE surge suppression DPDT SZR-MY2-D1
4PDT
SZR-MY4-D1
LED indicator + surge suppression DPDT SZR-MY2-X1
4PDT
SZR-MY4-X1
SOCKETS – REQUIRED ACCESSORIES
Din-rail Mounting Solder Terminal PCB Terminal
Relay Contact
DPDT
For use with
SZR-MY2-1, -N1, -
D1, -X1
SZX-SMF-08N
SZX-SMB-08
SZX-SMB-08P
4PDT
For use with
SZR-MY4-1, -N1, -
D1, -X1
SZX-SMF-14N
SZX-SMB-14
SZX-SMB-14P
2 Honeywell • Sensing and Control
General Purpose
Power Relays SZR-MY Series
CONTACT RATINGS
Type DPDT 4PDT
Load
Ratings
Resistive Load (p.f. = 1) Inductive load
(p.f. = 0.4, L/R = 7 ms)
Resistive Load (p.f. = 1) Inductive load
(p.f. = 0.4, L/R = 7 ms)
Rated load 220 Vac, 5A
24 Vdc, 5A
220 Vac, 2A
24 Vdc, 2A
220 Vac, 3A
24 Vdc, 3A
220 Vac, 0.8 A
24 Vdc, 1.5 A
Carry current 5A 3A
Max. operating
voltage
250 Vac, 125 Vdc 250 Vac, 125 Vdc
Max. operating
current
5 A 3 A
Max. switching
capacity
1,100 VA, 120 W 440 VA, 48 W 660 VA, 72 W 176 VA, 16 W
Min. permissible
load
1 mA, 5 Vdc 1 mA, 1 Vdc
COIL RATINGS
Rated Current
(mA)
Coil Inductance (H)
Rated
Voltage
(V)
50 Hz 60 Hz Coil
resistance
(Ω)
Armature
OFF
Armature
ON
Pick-up
Voltage
(V)
Dropout
Voltage
(V)
Maximum
Voltage
(V)
Power
Consumption
(W)
6 214.1 183 12.2 0.04 0.08 Approx.
12 106.5 91 46 0.17 0.33 1.0 W to 1.2 W
24 53.8 46 180 0.69 1.3 Max. Min. (60 Hz)
AC 50 25.7 22 788 3.22 5.66 75 % 30% 110%
100/110 11.7/12.9 10/11 3,750 14.54 24.6 Approx
110/120 9.9/10.8 8.4/9.2 4,430 19.2 32.1 0.9 W to 1.1 W
200/220 6.2/6.8 5.3/5.8 12,950 54.75 94.07 (60 Hz)
220/240 4.8/5.3 4.2/4.6 18,790 83.5 136.4
6 150 40 0.17 0.33
12 75 160 0.73 1.37 Max. Min. Approx.
DC 24 36.9 650 3.2 5.72 75% 10% 110% 0.9 W
48 18.5 2,600 10.6 21.0
100/110 9.1/10 11,000 45.6 86.2
Note 1: The rated current and coil resistance are measured at a coil temperature of 23 °C [73.4 °F] with tolerances of +15%,
-20% for AC rated current and ± 15% for DC coil resistance.
Note 2: The rated current of N1 and X1 types is 4 mA higher than the value in the table above.
Honeywell • Sensing and Control 3
General Purpose
Power Relays SZR-MY Series
SPECIFICATIONS
Contact material Silver
Contact resistance Max. 50 MOhm
Operate time Max. 20 ms
Release time Max. 20 ms
Mechanical 18,000 operations per hour Operating
frequency Electrical 1,800 operations per hour
Insulation resistance Min. 100 Mw at 500 Vdc
Dielectric withstand voltage 1,800 Vac 50 Hz/60 Hz for one minute between non-continuous current
carrying terminals and between coil thermals and contact terminals
Mechanical durability 10 Hz to 55 Hz at double amplitude of 1.0 mm Vibration
resistance Malfunction durability 10 Hz to 55 Hz at double amplitude of 1.0 mm
Mechanical durability 1,000 m/s2 (approx. 100 g) Shock resistance
Malfunction durability 200 m/s2 (approx. 20 g)
Mechanical AC: Min. 50 million operations (at operating frequency of 18,000 operations/hour)
DC: Min. 100 million operations (at operating frequency of 18,000 operations/hour)
Service life
Electrical DPDT: Min. 500,000 operations (at operating frequency of 1,800 operations/hour)
4PDT: Min. 200,000 operations (at operating frequency of 1,800 operations/hour)
Weight Approximately 35 g
Note 1: The data shown above are of initial value
CHARACTERISTIC DATA
10
5
1
0.5
0.1
10
550 100 500
Ratedoperatingcurrent(A)
Max.Switchingcapacity
DC resistive
AC resistive
DC inductive
L/R=7ms
AC inductive
p.f.=0.4
Rated operating voltage(V)
10
5
3
1
0.5
0.1
10
550 100 500
Ratedoperatingcurrent(A)
Max.Switchingcapacity
DC resistive
AC resistive
DC inductive
L/R=7ms
AC inductive
p.f.=0.4
Rated operating voltage(V)
ResistiveLoad
0 1 2 3 4 5 6 7 8
1,000
500
100
50
10
Numberofoperations(×
10)
4
AC220V
DC24V
Current(A)
AC110V
ResistiveLoad
1,000
500
100
50
10
Numberofoperations(×
10)
4
AC220V
DC30V
Current(A)
AC110V
0 1 2 3
InductiveLoad
0 1 2
1,000
500
100
50
10
Numberofoperations(×
10)
4
AC220V p.f.=0.4
DC24V L/R=7ms
Current(A)
AC110V p.f.=0.4
InductiveLoad
0 0.5 1 1.5
1,000
500
100
50
10
Numberofoperations(×
10)
4
AC220V p.f.=0.4
DC30V L/R=7m s
Current(A)
AC110V p.f.=0.4
DPDT
4PDT
4 Honeywell • Sensing and Control
General Purpose
Power Relays SZR-MY Series
HOLDING CLIPS
• Holding clips are included with the sockets
• Holding clips for the SMF-08N and SMF-14N cannot be removed once inserted
• Holding clips for all SMB sockets are wire for easy removal
• Holding clips are to be inserted into the slots provided on the socket
DIMENSIONS (For reference only – mm/in)
Figure 1. Dimensions
For SZX-SMF-08N and SZX-SMF-14N sockets
49,9 [1.96]
6,2
[0.24]
5,0
[0.20]
14,5
[0.57]
6,5
[0.26]
4,6 [0.18]
Figure 2. Dimensions
For all SZX-SMB sockets
29,0 [ 1.14]
22,0 [0 .87]
39,6 [1.56]
2,2
[0.09]15°
Honeywell • Sensing and Control 5
General Purpose
Power Relays SZR-MY Series
CATALOG LISTING MATRIX
SZR – MY 2 - ___ 1 P - AC110-120V
Product Type
General Purpose Relay
Amp Rating:
MY = 5 A or 3 A
LY = 10 A
Poles
2 = DPDT
4 = 4PDT
Option Type
__ = No Indicator or Diode
D = Internal Surge Protection Diode
N = Red LED Operation Indicator
X = LED and Diode
Mounting Type
1 = Terminal
Terminal Ty pe
__ = Solder /Plug-in
P = PCB
Voltage Rating:
AC6V = 6 Vac
AC12V = 12 Vac
AC24V = 24 Vac
AC50V = 50 Vac
AC100V = 100 Vac
AC110-120V = 110/120 Vac
AC200V = 200 Vac
AC220V = 220 Vac
AC220-240V = 220/240 Vac
DC6V = 6 Vdc
DC12V = 12 Vdc
DC24V = 24 Vdc
DC48V = 48 Vdc
DC100V = 100 Vdc
6 Honeywell • Sensing and Control
General Purpose
Power Relays SZR-MY Series
FIGURE 3. DIMENSION, CIRCUIT DIAGRAM, TERMINAL ARRANGEMENT, AND MOUNTING HOLE FOR
SZR-MY2-1, SZR-MY2-N1, SZR-MY2-D1, and SZR-MY2-X1
8 - O 1,2 [0.05] x 3 Holes
2,6
[0.10]
0,5
[0.02]
0,5
[0.02]
6,0
[0.24]
Max. 36,0 [1.42]
Max. 21,5
[0.85]
Max. 28,0 [1.10]
6,3
[0.25]
Bottom view
13 14
1
5
9
4
8
12
MY2-1 MY2-N1 AC MY2-N1 DC MY2-D1 MY2-X1
13 14
1
5
9
4
8
12
-+
13 14
1
5
9
4
8
12
13 14
1
5
9
4
8
12
-+ 13 14
1
5
9
4
8
12
-+
FIGURE 4. DIMENSION, CIRCUIT DIAGRAM, TERMINAL ARRANGEMENT, AND MOUNTING HOLE FOR
SZR-MY2-1P and SZR-MY4-1P
3,5
[0.14]
1,0
[0.04]
3,3
[0.13]
0,5
[0.02]
0,5
[0.02]
Max. 36,0 [1.42] 6,0
[0.24]
Max. 2 1 ,5
[0.85]
6,3
[0.25]
Max. 28 ,0
[1.10]
The circuit diagram is the same wit standard type of SZR-MY2-1 or the SZR-MY4-1
Honeywell • Sensing and Control 7
General Purpose
Power Relays SZR-MY Series
FIGURE 5. DIMENSION, CIRCUIT DIAGRAM, TERMINAL ARRANGEMENT, AND MOUNTING HOLE FOR
SZR-MY4-1, SZR-MY4-N1, SZR-MY4-D1, and SZR-MY4-X1
14 - O 1.2 [0.05] x 3 Holes
0,5
[0.02]
Max. 36,0 [1.42] 6,0
[0.24]
Max. 21,5
[0.85]
Max. 28,0
[1.10]
6,3
[0.25]
0,5
[0.02]
2,6
[0.10]
13 14
1
5
9
2
6
10
4
8
12
3
7
11
MY4-1 MY4-N1 DC
13 14
1
5
9
2
6
10
4
8
12
3
7
11
-+
MY4-N1 AC MY4-D1 MY4-X1
13 14
1
5
9
2
6
10
4
8
12
3
7
11
13 14
1
5
9
2
6
10
4
8
12
3
7
11
-+ 13 14
1
5
9
2
6
10
4
8
12
3
7
11
-+
-
-
Bottom view
FIGURE 6. CIRCUIT DRAWING FOR SZR-MY2- and SZR-MY4-
3.75
6.3 4.3
13.2
8- 1.3 0.1
4.4
13.2
6.35
12.65 4.1
14- 1.3 0.1
4PDT
DPDT
8 Honeywell • Sensing and Control
General Purpose
Power Relays SZR-MY Series
SOCKETS
FIGURE 7. SZX-SMF-08N FIGURE 8. SZX-SMF-14N
25,0 [0.99]
18,0
[0.70]
15,6
[0.61]
45,0
[1.77]
35,2
[1.39]
3,9
[0.15]
6,0
[0.24]
4,2
[0.17]
62,0 [2.44]
30,0 [1.18]
26,0 [1.02]
3,0
[0.12]
62,0 ± 0,1
[2.44 ± .004]
2 - O 4,5 [0.18] Holes
2-M3 or 2-M4
Max. 61,0 [2.40]
26,0
[1.02]
30,0 [1.18]
26,0 [1.02]
3,0
[0.12] 62,0 [2.44]
4,2
[0.17]
45,0 [1.77]
15,6
[0.61]
35,2 [1.39]
62,0 ± 0,1 [2.44 ± .004]
2 - O 4,5 [0.18] Holes
2-M3 or 2-M4
25,0 [0.99]
18,0
[0.70]
Max. 61,0 [2.40]
6,0
[0.24] 3,9
[0.15] 26,0
[1.02]
FIGURE 9. SZX-SMB-08 FIGURE 10. SZX-SMB-14
8 - 3 X O 1,2 [0.05] Holes
0,3
[0.01]
Max. 24,0 [0.94]
Max. 25,5 [1.00]
Max. 29,5 [1.16]
2,6 [0.10]
Max. 20,0
[0.79]
2,7
[0.11] 7,7
[0.30]
Max. 38,5 [1.52 ]
25,8 ± 0,2
[1.02 ± .008]
21,4 ± 0,2
0.84 ± .008
14 - 3 x O 1,2 [0.05] HolesMax 24,0 [0.94]
0,3
[0.01]
2,7
[0.11] Max. 20,0
[0.79]
7,7
[0.30] 2,6
[0.10]
Max. 25,5
[1.00]
Max. 29,5
[1.16]
38,5 [1.52]
25,8 ± 0,2
[1.02 ± .008]
21,4 ± 0,2
[0.84 ± .008]
Honeywell • Sensing and Control 9
General Purpose
Power Relays SZR-MY Series
Sensing and Control
www.honeywell.com/sensing
Honeywell
11 West Spring Street
FIGURE 11. SZX-SMB-08P FIGURE 12. SZX-SMB-14P
Max. 22,0 [0.87]
Max. 25,5 [1.00]
Max. 29,5 [1.16]
2,6
[0.10]
Max. 16,5
[0.65]
2,7
[0.11]
0,3 [0.01]
4,3
[0.17]
38,5 [1.52]
4,2
[0.17] 8 - O 2,0 [0.08] Holes
6,4
[0.25] 5,8
[0.23]
13,2
[0.52]
4,1
[0.16]
12,65
[0.50]
6,35
[0.25]
Max. 16,5
[0.65]
2,7
[0.11] 2,6
[0.10]
0,3
[0.01]
4,3
[0.17] Max. 22,0
[0.87]
Max. 25,5
[1.00]
Max. 29,5
[1.16]
38,5 [1.52]
5,8
[0.23]
6,4
[0.25]
4,2
[0.17]
13,2
[0.52]
4,4
[0.17]
4,1
[0.16]12,65
[0.50]
6,35
[0.25]
14 - O 2,0 [0.08] Holes
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as
being free of defective materials and faulty
workmanship. Contact your local sales office for
warranty information. If warranted goods are
returned to Honeywell during the period of
coverage, Honeywell will repair or replace without
charge those items it finds defective. The
foregoing is Buyer’s sole remedy and is in lieu
of all other warranties, expressed or implied,
including those of merchantability and fitness
for a particular purpose.
Specifications may change without notice. The
information we supply is believed to be accurate
and reliable as of this printing. However, we
assume no responsibility for its use.
While we provide application assistance
personally, through our literature and the
Honeywell web site, it is up to the customer to
determine the suitability of the product in the
application.
For application assistance, current specifications,
or name of the nearest Authorized Distributor,
contact a nearby sales office. Or call:
1-800-537-6945 USA/Canada
1-815-235-6847 International
FAX
1-815-235-6545 USA
INTERNET
www.honeywell.com/sensing
info.sc@honeywell.com
Freeport, Illinois 61032
009550-4-EN IL50 GLO 0104 Printed in USA
Copyright 2003-2004 Honeywell International Inc. All Rights Reserved.
