COIL CHARACTERISTICS (Vdc)
SERIES WC
CODE A
Vdc
F
Vac 400Hz
N Suppressed [5]
Vdc
Nominal operating voltage 28 115 28
Maximum operating voltage 29 124 29
Pick-up voltage, maximum
- Nominal 18 90 18
- High temp test 20 95 20
- Continuous current test 22.5 100 22.5
Drop-out voltage, maximum 7 30 7
Coil resistance in Ohms ±20% at +25° C [4] 100 - 100
Coil current max. @ nom. Volt.and +25° C - .10 Amperes -

GENERAL CHARACTERISTICS
Temperature range -55°C to 85°C
Minimum operating cycles (life) at rated resistive load 50,000
Minimum operating cycles (life) at 25% rated resistive load 100,000
Dielectric strength at sea level
- All circuits to ground and circuit to circuit 1500 Vrms
- Coil to ground and aux. contacts 1250 Vrms
Dielectric strength at altitude:
- Main contacts 700 Vrms
- Coil and aux. contacts 500 Vrms
Insulation resistance
- Initial (500 Vdc) 100 M W min
- After environmental tests (500 Vdc) 50 M W min
Sinusoidal vibration 10G / 60 to 2000 Hz
Shock (6 ms duration) 20G
Maximum contact opening time under vibration and shock 10 µs
Operate time at nominal voltage (Including bounce) 60 ms max
Release time at nominal voltage (Including bounce)
- DC 40 ms max [3]
- AC 80 ms max
Contact bounce at nominal voltage 4 ms max
Weight 4.50lbs max.
Overload 1250 Amperes
Rupture 1750 Amperes
Altitude 80,000 Feet
Date of issue: 06/10 - 120 - Page 2 of 5