Specifications

Specifications table for model CM1a-24V
ItemPerformance characteristics
Protective ConstructionSealed
Terminal TypePlug-in type
Protective ElementNone
Rated Coil Voltage24V DC
Contact Arrangement1 Form A
Operating Function Single side stable
Operate (Set) Voltage (at20°C) (Initial) 6 to 14V DC
Release (Reset) voltage (at20℃) (Initial)2.4 to 8.4V DC
Rated Operating Current [±10%] (at 20°C)75 mA
Coil Resistance (At 20oC)320Ω
Rated Operating Power (at 20°C) 1.8W
Usable Voltage Range20 to 32V DC
Contact Resistance (Initial)Max. 15mΩ (typ. 2mΩ) (By voltage drop 1A 6V DC)
Contact MaterialAg alloy
Nominal Switching Capacity (Resistive Load) N.O. side: 15A 28V DC
Contact Data: Max. Carrying CurrentN.O. side: 15A 28V DC (at 85°C 185°F, continuous)
Min. Switching Load (Resistive) 1A 14V DC (at 20°C 68°F)
Contact Voltage Drop (After Electrical Life Test)N.O. side: Max. 0.3 V (By voltage drop 15 A 28 V DC)
Insulation Resistance (Min. MΩ)(Initial)Min. 20 MΩ (at 500V DC, Measurement at same location as [Dielectric strength] section.)
Dielectric Strength (Between Open Contacts) (Initial)500 Vrms for 1 min. (Detection current: 10mA)
Dielectric Strength (Between Contacts and Coil) (Initial)500 Vrms for 1 min. (Detection current: 10mA)
Operate (Set) Time<br>(At Rated Coil Voltage) (At 20oC) (Initial)Max. 10ms (without contact bounce time)
Release (Reset) Time<br>(at Rated Coil Voltage) (at 20&deg;C) (Initial)Max. 10ms (Without contact bounce time) (Without diode)
Shock Resistance: Functional Min. 200 m/s2 [approx. 20G] (Half-wave pulse of sine wave: 11ms; detection time: 10µs)
Shock Resistance: DestructiveMin. 1,000 m/s2 [approx. 100G] (Half-wave pulse of sine wave: 6ms)
Vibration Resistance: Functional10 to 500 Hz, Min. 44.1 m/s2 [approx. 4.5G]
Vibration Resistance: Destructive10 to 2,000 Hz, Min. 44.1 m/s2 [approx. 4.5G],
Time of vibration for each direction; X, Y, Z direction: 4 hours
Expected Life: Mechanical LifeMin. 106 (at 120 cpm)
Expected Life: ElectricalMin. 104 (Operating frequency: 2s ON, 2s OFF)
ConditionsAmbient temperature: –40 to +85°C –40 to +185°F, Humidity: 5 to 85% R.H. (Please avoid icing or condensation)
Weight (Typ.)Approx. 20 g .71 oz
Inner Carton (Pieces)50
Outer Carton (Pieces) 200

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CM1a-24V

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