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Rated Load Current of Contact Circuit 80A Normally Open DC Power Contactor Used on Battery Car
1. Summarize
JQ-80H DC contactor has a set of bridge type of dynamic contacts with load current up to 80a. The product conforms to: GB/IEC60947-4-1:2009 Ed.3.0.MOD low voltage switch equipment and control devices 4-1 part: contactors and motor starter electromechanical contactors and motor starter (including electrical motor protector).
2. Environmental condition
| The environment temperature | working: －25℃～+55℃ |
| Storage and transportation:－25～+55℃ | |
| Relative humidity | 95% at 40 degree |
| Altitude | not more than 2000 meters |
| Vibration | 5-50hz, sine, 2.5g |
| Impact | 50g, 11ms(half-sine wave) |
| Installation requirement | no |
| Level of protection | IP50 |
3. Main technical parameter
| No. | Parameter name | Unit | Requirements | |
| 1 | Coil rate voltage( Ue) | V | | |
| Coil max voltage Uman(short-time working) | V | 14.4 | ||
| Coil minimum voltage Umin(0.8Ue) | V | 9.6 | ||
| Coil resistance R | Ω | 16.56～19.44 | ||
| Instantaneous maximum current 1s | A | 500A,≤1S | ||
| Coil dc power | W | ≤9.0 | ||
| Coil temperature to rise | ℃ | ≤85 | ||
| Main contacts working system | Continus working | |||
| 2 | Action time: response time | ms | ≤30 | |
| Release time | ms | ≤50 | ||
| 3 | Main contacts rate voltage | V | Same with coil,not higher than 60V | |
| Main contacts rate current | A | ≤80 | ||
| Contact pressure drop of main contact below 80A | mv | ≤80 | ||
4. The configuration and installation drawing
