Low voltage air circuit breaker
The ME09 air?circuit?breaker is available in three basic frame current ratings. Its rated current ranges from 400?A to 6400?A, with 3?pole and 4?pole versions offered. The full product series provides multiple breaking?capacity classes, and its rated operating short?circuit breaking capacity equals 100?% of the rated ultimate short?circuit breaking capacity (Ics?=?100?% Icu).
? Frame?1: rated current ranges from 400?A to 2500?A, no derating required at 50?°C. Rated operational voltage up to 690?V. Breaking?capacity (Ics?=?Icu) ratings: 50?kA and 65?kA.
? Frame?2: rated current ranges from 800?A to 4000?A, no derating required at 50?°C. Rated operational voltage up to 690?V. Breaking?capacity (Ics?=?Icu) ratings: 65?kA and 80?kA.
? Frame?3: rated current ranges from 5000?A to 6400?A, no derating required at 50?°C. Rated operational voltage up to 690?V. Breaking?capacity (Ics?=?Icu) rating: 100?kA.
