Description
SCOPE OF APPLICATION
TXCM1Z Molded Case Circuit Breaker (16A~250A, 225A~400 amp or 400 amp~ 630A DC Circuit Breaker, PV DC MCCB) is used for low-voltage power generation, transmission and distribution lines of rated voltage of DC500V, 750V and 1000V, rated current of 16A~250A, 225A~400 amp or 400 amp~ 630A to provide isolation, overload and short circuit protection, DC MCCB can also be used for infrequent making and breaking of circuits under normal circumstances.
The DC MCCB are widely used in photovoltaic power generation systems, wind power generation systems, roof building power generation systems, rail transit power distribution systems and infrastructure construction and other low-voltage DC generation, transmission and distribution application occasions.
ALTITUDE
●Altitude of TXCM1Z DC MCCB installation place in normal work is not more than 2000m.
●If you need to install it at an altitude of more than 2000m, which can be used according to the altitude factor derating table.
Derating factor of altitude corresponds to the circuit breaker
| Altitude (m) | 2000 | 3000 | 4000 | 5000 |
| Rated frequency withstand voltage | U | U | U | U |
| Max operating voltage | Ue | Ue | Ue | Ue |
| Rated operating current | ln | 0.97In | 0.93In | 0.89In |
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