QJL7-63 6KA Miniature Circuit Breaker manufacturers
QJL7-63
QJL7-63 Miniature Circuit Breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected. They are common in domestic, commercial and industrial application
It also can be used for non-frequent on-and-off switching operations under normal circumstances.
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Normal Use And Installation Conditions
- Ambient air: -5°C~+40°C, 24h within an average of not more than +35°C;
- Altitude: not more than 2000m;
- Atmospheric conditions: The air relative humidity at the installation site should not exceed 50% at +40°c, and the relative humidity should not exceed 90% when the monthly average minimum temperature of the wettest month does not exceed +25°C.
- Installation categories: ll, ll grade;
- Pollution Degree: Grade 2;
- Installation type: the use of standard rail installation;
- lnstallation conditions: small disconnector general vertical mounting handle up for the power position, the installation should be no significant impact and vibration.
Technical Data （Specification）
| Electrical Features | |
| International standard | IEC/EN 60898-1 |
| Pole | 1P 2P 3P 4P |
| Rated current | 1-63A |
| Tripping characteristics | B、C、D |
| Rated breaking capacity | 6KA |
| Rated operational voltage | 230/240V AC |
| Minimum operational voltage | 12V AC |
| Maximum operational voltage | 440V AC |
| Rated frequency | 50/60Hz |
| Rated insulated voltage | 500V AC |
| Rated impulse withstand voltage | 6KA |
| Dielectric test voltage | 2kV |
| Mechanical service life | 10000 operation cycles |
| Electrical service life | 4000 operation cycles |
| Line voltage connection | Arbitrary above or below |
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