COIL CHARACTERISTICS (Vdc) SERIES KD
CODE A B C M N [8] R [8] V [8]
Nominal operating voltage 28 12 6 48 28 12 6
Maximum operating voltage 29 14.5 7.3 50 29 14.5 7.3
Maximum pickup voltage
- Cold coil at +125° C 18 9 4.5 36 18 9 4.5
- During high temp test at +125° C 19.8 9.9 5 38 19.8 9.9 5
- During continuous current test at +125° C 22.5 11.25 5.7 42 22.5 11.25 5.7
Maximum drop-out voltage 7 4.5 2.5 14 7 4.5 2.5
Coil resistance Ω ±10% at +25° C, except types "C" &
"V" +20%, -10%
290 70 18 890 290 70 18
GENERAL CHARACTERISTICS
Temperature range -70°C to +125°C
Minimum operating cycles (life) at rated load 50,000 [3]
Minimum operating cycles (life) at 25% rated load 200,000
Dielectric strength at sea level
- All circuits to ground and circuit to circuit 1250 Vrms
- Coil to ground and coil auxiliary contact gap 1000 Vrms [4]
Dielectric strength at altitude 80,000 ft 500 Vrms [5]
Insulation resistance
- Initial (500 Vdc)
100 M Ω min
- After environmental tests (500 Vdc)
50 M Ω min
Sinusoidal vibration (A and D mounting) 0.12DA / 10 to 70 Hz
30G / 70 to 3000 Hz
Sinusoidal vibration (J mounting) 0.12DA / 10 to 57 Hz
20G /57 to 3000 Hz
Random vibration
- Applicable specification MIL-STD-202
- Method 214
- Test condition - A and D mounting
1G (0.4G
2
/Hz, 50 to 2000 Hz)
- Test condition - J mounting
1E (0.2G
2
/Hz, 50 to 2000 Hz)
- Duration 15 minutes each plane
Shock (A, D and W mounting) 200G / 6 ms
Shock (J mounting) 100G / 6 ms
Maximum contact opening time under vibration and shock 10 µs
Operate time at nominal voltage@25°C 15 ms max
Release time at nominal voltage@25°C 15 ms max
Contact make bounce at nominal voltage
- Power contacts@25°C 1 ms max
- Auxiliary contacts@25°C 4 ms max
Contact release break bounce at nominal voltage@25°C - Power contacts 0.1 ms max [9]
Weight maximum 0.188lb
Date of issue: 07/10 - 164 - Page 2 of 4
