Choice of a circuit-breaker
The choice of a CB is made in terms of:
· Electrical characteristics of the installation for which the CB is intended
· Its eventual environment: ambient temperature, in a kiosk or switchboard enclosure, climatic conditions, etc.
· Short-circuit current breaking and making requirements
· Operational specifications: discriminative tripping, requirements (or not) for remote control and indication and related auxiliary contacts, auxiliary tripping coils, connection
· Installation regulations; in particular: protection of persons
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