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MM2B AC50

Power Relay

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Power relay, Standard model, 2 poles, Open structure, Screw terminal, 50 VAC

Coil ratings 50 VAC 50 Hz 94 mA
50 VAC 60 Hz 78 mA
Contact form DPDT
Contact method Single
Contact material Ag
Contact rated load 220 VAC 15 A (Resistive load (cosφ = 1))
220 VAC 15 A (Inductive load (cosφ = 0.4))
24 VDC 10 A (Resistive load)
24 VDC 10 A (Inductive load (L/R = 7 ms))
Terminal structure Screw terminal

Item list of MM

  • Ratings / Performance
Ratings
Degree of protectionOpen coils
Terminal structureScrew terminal
CoilCoil ratings50 VAC 50 Hz 94 mA
50 VAC 60 Hz 78 mA
Coil resistance82 Ω
Operate voltage (Set voltage)80 % max.
Release voltage (Reset voltage)25 % min. (50 Hz)
30 % min. (60 Hz)
Maximum voltage110 %
Power consumptionApprox. 4.1 VA Initial/Approx. 3.5 VA Rating
ContactContact rated load220 VAC 15 A (Resistive load (cosφ = 1))
220 VAC 15 A (Inductive load (cosφ = 0.4))
24 VDC 10 A (Resistive load)
24 VDC 10 A (Inductive load (L/R = 7 ms))
Max. contact voltage250 VAC
250 VDC
Max. contact currentAC: 15 A
DC: 15 A
Maximum switching power3300 VA (Resistive load (cosφ = 1))
3300 VA (Inductive load (cosφ = 0.4))
240 W (Resistive load)
240 W (Inductive load (L/R = 7 ms))
Contact formDPDT
Contact methodSingle
Contact materialAg
Performance
Contact resistance25 mΩ max. (Voltage drop method with 5 VDC 1 A)
Operating time25 ms max. (With rated operating power applied, 23 ℃, not including contact bounce)
Reset time30 ms max. (With rated operating power applied, 23 ℃, not including contact bounce)
Maximum operating frequencyMechanical: 7200 time/hour
Rated load: 1800 time/hour
Insulation resistanceBetween coil and contacts: 100 MΩ min. (at 500 VDC)
Between contacts of different polarity: 100 MΩ min. (at 500 VDC)
Between contacts of same polarity: 100 MΩ min. (at 500 VDC)
Dielectric strengthBetween coil and contacts: 2000 VAC 50/60 Hz 1 min
Between contacts of different polarity: 2000 VAC 50/60 Hz 1 min
Between contacts of same polarity: 1500 VAC 50/60 Hz 1 min
Vibration resistance (destruction)10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Vibration resistance (Malfunction)10 to 55 to 10 Hz, 0.5-mm single amplitude (1-mm double amplitude)
Shock resistance (destruction)1000 m/s2
Shock resistance (Malfunction)100 m/s2
Endurance (Mechanical)5,000,000 operations min. (switching frequency 7,200 operations/h)
Endurance (Electrical)500,000 operations min. (23 ℃, Rated load, switching frequency 1,800 operations/h)
Failure rate5 VDC 10 mA (failure level: Preference value, Switching frequency: 60 operations per minute)
Ambient temperature (Operating)-10 to 55 ℃ (with no freezing or condensation)
Ambient humidity (Operating)5 to 85 %
Mounting methodScrew mounting
  • Dimensions

Outline drawing

  • Characteristic chart

Electrical life curve

Series

Power Relay

MM