Product Specification
- Product- Circuit breaker
- Range -QO
- Current Rating -30 A
- Voltage Rating- 120/240 V AC
- Mounting Type -bolt on
- Number of Poles -1P
- Circuit Breaker Type -Standard
- Ratings -HACR rated
- Electrical Connection-Box lugs
- Interrupt Rating-10 kA 120/240 V AC 50/6
Application
A circuit-breaker used to protect a sub-circuit should have a current rating matched to its load. The circuit-breaker rating must not exceed that of the cable; also, the current causing effective operation of the breaker must not exceed 1.45 times the lowest current-carrying capacity of any of the conductors in the circuit.
The primary function of a miniature circuit-breaker is to protect an installation or appliance against sustained overloading and short-circuit faults, but it will also give protection against earth faults provided that the earth fault loop impedance is low enough.
secondary function the miniature circuit-breaker can be used as an isolating switch or for local control switching. Today they are widely used in place of fuses in domestic installations where householders find them more convenient.