MY
Miniature Power Relays: MY4
Refer to the standards certifications and compliance
section of your OMRON website for the latest
information on certified models.
When your order, specify the rated voltage.
Ordering Information
Rated voltage (V)
Classification
Model
Standard products
24, 100/110, or 200/220 VAC
12, 24, 48, or 100/110 VDC
Made-to-order items
12, 110/120, or 220/240 VAC
Standard models
MY4
12, 24, 100/110, 110/120, 200/220, or 220/240 VAC
12, 24, 48, or 100/110 VDC
Models with built-in operation indicators
Models with built-in diodes
MY4N
MY4-D
12, 24, 48, or 100/110 VDC
Models with built-in diodes and operation
indicators
MY4N-D2
MY4-CR
MY4N-CR
12, 24, or 100/110 VDC
48 VDC
Models with built-in CR circuits
100/110 or 200/220 VAC
110/120 or 220/240 VAC
220/240 VAC
Models with built-in CR circuits and operation
indicators
100/110, 110/120, or 200/220 VAC
Note: 1. Ask your OMRON representative for details on the time required to deliver made-to-order products.
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products with voltages other than the above coil
specifications.
3. The above models and specifications are new versions in the MY Series.
4. Except for MY4(N)-CR Relays with the above voltage specifications, all Relays have a height of 53 mm or less.
If Mounting Brackets are required, refer to page 33 for selection information.
Ratings and Specifications
Ratings
Operating Coil (Standard Models)
Item Rated current (mA)
Coil inductance (H)
Must-
operate
voltage (V)
Must-
release
voltage (V)
Coil resistance
Maximum
voltage (V)
Power consumption
(VA, W)
Rated
Armature
OFF
Armature
ON
(Ω)
50 Hz
60 Hz
voltage (V)
12
24
106.5
53.8
91
46
0.17
0.69
14.54
19.2
54.75
83.5
0.73
3.2
0.33
1.3
Approx. 1.0 to 1.2
(at 60 Hz)
46
180
100/110
11.7/12.9
9.9/10.8
6.2/6.8
4.8/5.3
10/11
8.4/9.2
5.3/5.8
4.2/4.6
3,750
4,430
12,950
18,790
165
24.6
32.1
94.07
136.4
1.37
5.72
21.0
86.2
AC
DC
30% min.*2
110/120
200/220
220/240
12
Approx. 0.9 to 1.1
(at 60 Hz)
110% of rated
voltage
80% max.*1
72.7
24
36.3
17.6
662
10% min.*2
Approx. 0.9
48
2,725
11,440
10.6
45.6
100/110
8.7/9.6
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/−20% for the AC rated current and 15% for the
DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To ensure release, use a value that is lower than the
specified value.
Contact Ratings
Load
Inductive load
(cos φ = 0.4, L/R = 7 ms)
Type
Ambient
Standard
models
Model with built-in operation
indicator, diode, or CR circuit
Resistive load
Item
Item
3 A at 220 VAC
3 A at 24 VDC
0.8 A at 220 VAC
1.5 A at 24 VDC
Rated load
Rated carry current
operating
−55 to 70° C
−55 to 60° C*2
temperature*1
3 A
Ambient
operating
humidity
Maximum contact voltage 250 VAC, 125 VDC
Maximum contact current 3 A
5% to 85%
*1. With no icing or condensation.
*2. This limitation is due to the diode junction temperature and elements used.
Contact configuration
Contact structure
Contact materials
4PDT
Single
Au cladding + Ag alloy
8