Mechanical Latching Relay – Omron MMK

MMK Mechanical Latching Relay is produced by Omron.

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Feature

• Low power consumption due to mechanical latch for economic operation.

• Relays with mixed coil specifications can be produced (e.g., AC set coil and DC reset coil).

• Operational response fast enough to enable pulse signal power applications.

• Ambient operating temperature: –10°C to 55°C.

 

Specification

Item Open or bifurcated-contact Relays
Contact resistance *2 50 mΩ max.
Set time *3 AC: 30 ms max.; DC: 60 ms max. (minimum pulse width for AC and DC: 100 ms)
Reset time *3 30 ms max. (minimum pulse width for AC and DC: 100 ms)
Max. operating frequency Mechanical: 1,800 operations/hr
Electrical: 1,800 operations/hr (under rated load)
Insulation resistance *4 100 MΩ min. (at 500 VDC)
Dielectric strength 1,500 VAC, 50/60 Hz for 1 min between contacts of same polarity
2,000 VAC, 50/60 Hz for 1 min between contacts of different polarity, between contacts and
coil, and between set and reset coils
Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.375 mm single amplitude (0.75 mm double amplitude)
Malfunction: 10 to 35 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance Destruction: 500 m/s2
Malfunction: 50 m/s2
Endurance Mechanical: 2,500,000 operations min. (at 1,800 operations/hr)
Electrical: 500,000 operations min. (at 1,800 operations/hr under rated load) *5
Error rate (level P)
(Reference value) *6
10 mA at 5 VDC
Ambient temperature Operating: -10°C to 55°C (with no icing or condensation)
Ambient humidity Operating: 5% to 85%
Weight Standard Relays
MM2K: Approx. 255 g
MM3K: Approx. 390 g
MM4K: Approx. 420 g
MM2KP: Approx. 375 g
MM3KP: Approx. 550 g
MM4KP: Approx. 570 g
DC-switching Relays
MM2XK: Approx. 260 g
MM2XK: Approx. 395 g
MM4XK: Approx. 430 g
MM2XKP: Approx. 380 g
MM3XKP: Approx. 555 g
MM4XKP: Approx. 580 g

 

 

*1. The data shown above are initial values.
*2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.
*3. The set or reset time was measured with the rated voltage imposed with any contact bounce ignored at an ambient
temperature of 23°C.
*4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for
checking the dielectric strength.
*5. The electrical endurance was measured at an ambient temperature of 23°C.
*6. This value was measured at a switching frequency of 60 operations per minute.

 

Characteristics (Conforming to Auxiliary Power Relay Specifications)

 

Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.375 mm single amplitude (0.75 mm double amplitude)
Malfunction: 10 to 22 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance Destruction: 300 m/s2
Malfunction: 30 m/s2
Endurance Mechanical: 2,500,000 operations min. (at 1,800 operations/hr)
Electrical: 500,000 operations min. (at 1,800 operations/hr under rated load) *2
Error rate (level P)
(Reference value) *3
10 mA at 5 VDC
Ambient temperature Operating: -10°C to 40°C (with no icing or condensation)
Ambient humidity Operating: 5% to 85%
Weight MM4KP-JD: Approx. 570 g
MM4XKP-JD: Approx. 580 g

 

 

*1. The data shown above are initial values.
*2. The electrical endurance was measured at an ambient temperature of 23°C.
*3. This value was measured at a switching frequency of 60 operations per minute.