QJL7-63 Mniature Circuit Breaker
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.
Product Parameter (Specification)
| Pole No. | 1,2,3,4 |
| Rated voltage | 250V/500V/750V/1000V |
| Rated current(A) | 1,2,3,4,6,10,16,20,25,32,40,50,63 |
| Tripping curve | B,C,D |
| Rated breaking capacity(Icu) | 10000A |
| Rated frequency | 50/60Hz |
| Rated impulse withstand voltage | 6KA |
| Electro-mechanical endurance | 10000 |
| Contact position indication | |
| Connection terminal | Screw terminal |
| Pillar terminal with clamp | |
| Connection capacity | Rigid conductor up to 25mm2 |
| Fastening torque | 2.5Nm |
| Installation | On symmetrical DIN rail 35mm |
| Panel mounting |
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