COIL CHARACTERISTICS AT 20 °C SERIES 77
Nominal operating voltage 28 Vdc
Maximum operating voltage 32 Vdc
Maximum pickup voltage 18 Vdc
Drop-out voltage 1.5 Vdc min.
7 Vdc max.
Cut-in current 3.2 A at 28 Vdc
Holding current 100 mA at 28 Vdc

GENERAL CHARACTERISTICS
Temperature range -55°C to +85°C [4]
Minimum operating cycles (life) at rated load 50,000 cycles
Dielectric strength at sea level 1250 Vrms
Dielectric strength at altitude 25,000 m 500 Vrms
Insulation resistance at 500 Vdc 100 M W
Sinusoidal vibration 10G / 5 to 2000 Hz
Shock 30G / 11 ms
Maximum contact opening time under vibration and shock 10 µs
Maximum operate time at 28 Vdc 20 ms
Maximum release time at 28 Vdc 15 ms
Main contact voltage drop
- Initial value 120 mV
- After endurance test 180 mV
Assembly torque
- Main contact terminals 2.45 Nm
- Coil terminals 0.5 Nm
Date of issue: 6/06 - 50 - Page 2 of 3