General-purpose Relay
MY
Versatile, Multi-featured, Miniature Power Relay
for Sequence Control and Power Switching
Applications
• Models with lockable test buttons now available.
• Multiple features available, including operation indicators (mechan-
ical and LED indicators), lockable test button, built-in diode and CR
(surge suppression), bifurcated contacts, etc.
• Environment-friendly cadmium-free contacts.
• Wide range of Sockets (PY, PYF Series) and optional parts.
• Max. Switching Current: 2-pole: 10 A, 4-pole: 5 A
• Provided with nameplate.
• RoHS Complaint.
LR
Ordering Information
■
Relays
Standard Coil Polarity
Type
Contact form
Model
Plug-in socket/solder terminals
Standard with LED
indicator
Standard
DPDT
4PDT
4PDT (bifurcated)
With built-in diode
(DC only)
With built-in CR
(220/240 VAC,
110/120 VAC only)
DPDT
4PDT
4PDT (bifurcated)
DPDT
4PDT
4PDT (bifurcated)
MY2N
MY4N
MY4ZN
MY2N-D2
MY4N-D2
MY4ZN-D2
MY2N-CR
MY4N-CR
MY4ZN-CR
With LED indicator and
lockable test button
MY2IN
MY4IN
MY4ZIN
MY2IN-D2
MY4IN-D2
MY4ZIN-D2
MY2IN-CR
MY4IN-CR
MY4ZIN-CR
Without LED indicator
MY2
MY4
MY4Z
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Reverse Coil Polarity
Type
Contact form
Model
Plug-in socket/solder terminals
With LED indicator
Standard (DC only)
DPDT
4PDT
4PDT (bifurcated)
With built-in diode
(DC only)
DPDT
4PDT
4PDT (bifurcated)
MY2N1
MY4N1
MY4ZN1
MY2N1-D2
MY4N1-D2
MY4ZN1-D2
With LED indicator and
lockable test button
MY2IN1
MY4IN1
MY4ZIN1
MY2IN1-D2
MY4IN1-D2
MY4ZIN1-D2
Note: 1.
When ordering, add the rated coil voltage to the model number(s), followed by “(S)”. Rated coil voltages are given in the coil ratings table.
Example: MY2 AC12(S)
↑
Rated coil voltage
2.
Arc barrier standard on all four-pole relays.
3.
Other models also available, such as, three-pole versions, flangemount, PCB, etc. Contact your Omron Representative for details.
General-purpose Relay
MY
259
Specifications
■
Coil Ratings
Rated voltage
Rated current
50 Hz
AC
6 V*
12 V
24 V
48/50 V*
110/120 V
220/240 V
DC
6 V*
12 V
24 V
48 V*
100/110 V
214.1 mA
106.5 mA
53.8 mA
24.7/
25.7 mA
4.8/5.3 mA
151 mA
75 mA
37.7 mA
18.8 mA
9.0/9.9 mA
60 Hz
183 mA
91 mA
46 mA
21.1/
22.0 mA
4.2/4.6 mA
12.2
Ω
46
Ω
180
Ω
788
Ω
4,430
Ω
18,790
Ω
39.8
Ω
160
Ω
636
Ω
2,560
Ω
11,100
Ω
Coil
resistance
Inductance
(reference value)
Arm. OFF
0.04 H
0.17 H
0.69 H
3.22 H
19.20 H
83.50 H
0.17 H
0.73 H
3.20 H
10.60 H
45.60 H
Arm. ON
0.08 H
0.33 H
1.30 H
5.66 H
32.1 H
136.4 H
0.33 H
1.37 H
5.72 H
21.0 H
86.2 H
10% min.
0.9 to 1.1 VA
(60 Hz)
0.9 W
Must
operate
Must
release
Max.
voltage
% of rated voltage
80% max. 30% min. 110%
Power
consumption
(approx.)
1.0 to 1.2 VA
(60 Hz)
9.9/10.8 mA 8.4/9.2 mA
Note: 1.
The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/–20% for rated currents and
±15%
for DC coil resistance.
2.
Performance characteristic data are measured at a coil temperature of 23°C.
3.
AC coil resistance and impedance are provided as reference values (at 60 Hz).
4.
Power consumption drop was measured for the above data. When driving transistors, check leakage current and connect a bleeder re-
sistor if required.
5.
Rated voltage denoted by “*” will be manufactured upon request. Ask your OMRON representative.
■
Contact Ratings
Item
2-pole
Resistive load
(cosφ = 1)
Rated load
Carry current
5 A, 250 VAC
5 A, 30 VDC
10 A (see note)
Inductive load
(cosφ = 0.4,
L/R = 7 ms)
2 A, 250 VAC
2 A, 30 VDC
4-pole
Resistive load Inductive load
(cosφ = 1)
(cosφ = 0.4,
L/R = 7 ms)
3 A, 250 VAC
3 A, 30 VDC
5 A (see note)
250 VAC
125 VDC
5A
1,250 VA
300 W
1,250 VA
150 W
1 VDC, 1 mA
500 VA
150 W
1,250 VA
150 W
1 VDC, 100
μA
500 VA
150 W
0.8 A, 250 VAC
1.5 A, 30 VDC
4-pole (bifurcated)
Resistive load
(cosφ = 1)
3 A, 250 VAC
3 A, 30 VDC
Inductive load
(cosφ = 0.4,
L/R = 7 ms)
0.8 A, 250 VAC
1.5 A, 30 VDC
Max. switching
250 VAC
voltage
125 VDC
Max. switching
10 A
current
Max. switching
2,500 VA
capacity
300 W
Min.
permissible
load*
5 VDC, 1 mA
* Reference value.
Note:
Do not exceed the carry current of a Socket in use.
260
General-purpose Relay
MY
■
Characteristics
Contact resistance
Operate time
Release time
Max. operating frequency
Insulation resistance
Dielectric withstand voltage
Vibration resistance
Shock resistance
Life expectancy
Ambient temperature
Ambient humidity
Weight
Operating
Operating
Electrical
100 mΩ max.
20 ms max.
20 ms max.
Mechanical
18,000 operations/hr
1,800 operations/hr (under rated load)
1,000 MΩ min. (at 500 VDC)
2,000 VAC, 50/60 Hz for 1.0 min (1,000 VAC between contacts of same polarity)
Destruction:10 to 55 Hz, 1.0 mm double amplitude
Malfunction:10 to 55 Hz, 1.0 mm double amplitude
Destruction:1,000 m/s
2
(approx. 100G)
Malfunction:200 m/s
2
(approx. 20G)
See the following table.
-55°C to 70°C (-67°F to 158°F) with no icing (see note)
5% to 85% RH
Approx. 35 g
Note:
The values given above are initial values.
■
Life Expectancy Characteristics
Pole
2-pole
4-pole
4-pole (bifurcated)
Mechanical life
(at 18,000 operations/hr)
AC:50,000,000 operations min.
DC:100,000,000 operations min.
20,000,000 operations min.
Electrical life
(at 1,800 operations/hr under rated load)
500,000 operations min.
200,000 operations min.
100,000 operations min.
■
Approved Standards
VDE, UL, CSA, IMQ, CE
■
Precautions
Connections
Do not reverse polarity when connecting DC-operated Relays with
built-in diodes or indicators or high-sensitivity DC-operated Relays.
Mounting
Whenever possible, mount Relays so that it is not subject to vibration
or shock in the same direction as that of contact movement.
General-purpose Relay
MY
261
Engineering Data
■
Maximum Switching Power
MY2
Switching current (A)
MY4, MY4Z
Switching current (A)
AC resistive load
AC inductive load
(cosφ=0.4)
AC resistive load
AC inductive load
(cosφ=0.4)
DC resistive load
DC resistive load
DC inductive load
(L/R=7 ms)
DC inductive load
(L/R=7 ms)
Switching voltage (V)
Switching voltage (V)
■
Endurance
MY2 (Resistive Loads)
Endurance (x10
3
operations)
10000
5000
3000
1000
500
300
30 VDC
30 VDC
250 VAC
MY2 (Inductive Loads)
Endurance (x10
3
operations)
10000
5000
3000
1000
500
300
250 VAC
30 VDC
30 VDC
250 VAC
100
50
30
10
250 VAC
100
50
30
10
Switching current (A)
Switching current (A)
MY4 (Resistive Loads)
Endurance (x10
3
operations)
10000
5000
3000
1000
500
300
30 VDC
30 VDC
250 VAC
MY4 (Inductive Loads)
Endurance (x10
3
operations)
10000
5000
3000
30 VDC
1000
500
300
250 VAC
30 VDC
100
250 VAC
100
50
30
10
250 VAC
50
30
10
Switching current (A)
Switching current (A)
262
General-purpose Relay
MY
MY4Z (Resistive Loads)
Endurance (x10
3
operations)
10000
5000
3000
1000
500
300
30 VDC
100
50
30
10
30 VDC
250 VAC
MY4Z (Inductive Loads)
Endurance (x10
3
operations)
10000
5000
3000
1000
500
300
30 VDC
30 VDC
100
50
30
10
250 VAC
250 VAC
250 VAC
Switching Current (A)
Switching Current (A)
General-purpose Relay
MY
263
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