MY
Characteristics
Models with built-in
operation indicators
Models with built-in
diodes
Model with built-in operation
indicator and diode
Item
Type
Standard models
Contact resistance*1
Operation time*2
Release time*2
50 mΩ max.
20 ms max.
20 ms max.
Maximum Mechanical
operating
frequency
Insulation resistance*3
Between coil and contacts
18,000 operations/h
Rated load
1,800 operations/h
100 MΩ min.
2,000 VAC at 50/60 Hz for 1 min.
Between contacts of
different polarity
Dielectric
strength
Between contacts of the
same polarity
1,000 VAC at 50/60 Hz for 1 min.
Destruction
Malfunction
Destruction
Malfunction
10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
Vibration
resistance
10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
1,000 m/s2
200 m/s2
Shock
resistance
AC: 50,000,000 operations min.
DC: 100,000,000 operations min.
(switching frequency: 18,000 operations/h)
Mechanical
Electrical*4
Endurance
500,000 operations min. (rated load, switching frequency: 1,800 operations/h)
Item
Number of poles
3 poles
Note: These are initial values.
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied.
Ambient temperature condition: 23° C
Failure rate P value
(reference value)*5
1 mA at 5 VDC
Approx. 35 g
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23°C
Weight
*5. This value was measured at a switching frequency of 120 operations per minute.
Dimensions
(Unit: mm)
MY3, MY3N, MY3-D, and MY3N-D2
Terminal Arrangement/
Internal Connections
(Bottom View)
MY3N
DC Models
AC Models
Standard Models
2.6
Eleven, 1.2-dia. × 2.2 oval holes
0.5
28 max.
6.3
(The coil has no polarity.)
0.5
21.5 max.
Check the coil polarity when wiring
and wire all connections correctly.
(The coil has no polarity.)
36 max.
6.4
Note: 1. An AC model has coil disconnection self-
diagnosis.
2. For the DC models, check the coil polarity
when wiring and wire all connections correctly.
3. The indicator is red for AC and green for DC.
4. The operation indicator indicates the
energization of the coil and does not represent
contact operation.
MY3-D
MY3N-D2
Check the coil polarity when wiring
and wire all connections correctly.
Check the coil polarity when wiring
and wire all connections correctly.
7