Circuit breakers

Circuit breakers

Industry: Electrical equipment

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Circuit breakers

long-time, short-time and instantaneous (LSI)

Electrical equipment; Circuit breakers

A combination of adjustable trip functions including long-time ampere rating, long-time delay, short-time pickup, short-time delay and defeatable instantaneous pickup.

long-time, short-time, instantaneous and ground-fa

Electrical equipment; Circuit breakers

A combination of adjustable trip functions including long-time ampere rating, long-time delay, short-time pickup, short-time delay, defeatable instantaneous pickup, ground-fault pickup and ...

onboard

Electrical equipment; Circuit breakers

installed and functional within a vehicle: on-board computers for aircraft.

Short-circuit delay (STD)

Electrical equipment; Circuit breakers

The length of time the circuit breaker will carry a short circuit (current greater than the short-circuit pickup) before initiating a trip signal.

Short-circuit pickup

Electrical equipment; Circuit breakers

The current level at which the circuit breaker shortcircuit delay function begins timing.

Sensor size

Electrical equipment; Circuit breakers

Maximum ampere rating possible for a specific circuit breaker, based on the size of the current sensor inside the circuit breaker. Sensor size is less than or equal to frame size.