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4JG-4A
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This is an electromagnetic relay of middle-power. Various technical indicators are in line with our general specifications. Applicable to all types of aircraft control circuits, power distribution systems.
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Environmental Indicators
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Item |
Environmental Conditions |
| 1 |
Quality Level |
（Ⓙ） & （G） |
GJB[J] |
KJ |
| II |
IV |
| 2 |
Temperature Range |
（℃） |
-55～85 |
-65～105 |
| 3 |
Relative Humidity |
(40±2)
℃，90%～95% |
| 4 |
Barometric Depression |
（kPa） |
0.67～0.27 |
4.39 |
| 5 |
Sinusoidal Vibration |
（Hz） |
10～2000 |
| （m/s2） |
147 |
196 |
| 6 |
Random Vibration |
（m/s2）2/Hz |
- |
20 |
| 7 |
Shock |
（m/s2） |
490 |
735 |
| 8 |
Acceleration |
（m/s2） |
490 |
735 |
Technical Indicators（Mainly for J, KJ）
| Contact Arrangement |
4 PDT |
Operate Time（ms） |
≤20 |
| Coil Power（W） |
2.9 |
Release Time（ms） |
≤10 |
| Leakage rate（Pa.cm3/s） |
≤1×10-2 |
Contact Load |
28Vd.c.，
20A Or 50Vd.c.，
10A （Resistive） |
10mV～50mV10μA～50μA （Lowlevel） |
| Contact Resistance（Ω） |
Before Life |
≤0.02 |
| After Life |
≤0.05 |
Contact Life |
5×103 cycles or 5×104 cycles |
4×105 cycles |
| Insulation Resistance（MΩ） |
Normal temperature and humidity |
≥10000（100Vd.c.） |
Overload |
Resistive 28Vd.c.， 40A，100 cycles |
| High temperature and humidity |
≥100（100Vd.c.） |
| Dielectric Strength Vr.m.s.（50Hz） |
Normal conditions |
≥500 |
Failure Rate |
L |
| Barometric Depression |
≥350 |
Weight（g） |
≤105 |
Coil Characteristics
| Coil voltage Vd.c. |
20℃ |
Temperature range |
| Coil resistance （1±10%）Ω |
Pick-up voltageMaximum Vd.c. |
Drop-out voltageMinimum Vd.c. |
Pick-up voltageMaximum Vd.c. |
Drop-out voltageMinimum Vd.c. |
| 15 |
70 |
9.5 |
1.2 |
12.5 |
0.5 |
| 28 |
270 |
18 |
2.0 |
24 |
1.0 |
Mounting Type
Click to Enlarge
Curves for DC Voltages above Normal Rating: Resistive Load Only
Circuit ( View From Bottom )
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