The ABB Type A pure residual current circuit breaker is a fundamental device for the protection of people against indirect and direct contacts, as required by the CEI EN 61008-1 and CEI EN 61008-2-1 standards.
The ABB Type A pure residual current circuit breaker is a fundamental device for the protection of people against indirect and direct contacts, as required by the CEI EN 61008-1 and CEI EN 61008-2-1 standards.
These pure differentials without thermal magnetic releases are designed to protect against leakage currents without the use of a built-in thermal magnetic device. To ensure protection against short circuits, they must be used in combination with appropriate circuit breakers or fuses.
The APR anti-perturbation pure differential versions Type A are specifically developed to effectively resist unwanted interruptions caused by impulsive dispersions. These devices are perfect for adverse conditions caused by atmospheric phenomena such as, for example, lightning.
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