NDB1LE-63 B Type

The NDB1LE-63 B Type Residual Current Operated Circuit Breaker provides protection against sinusoidal AC residual currents at 1kHz and below, pulsating DC residual currents, composite residual currents, and smooth DC residual currents. It is suitable for applications utilizing variable frequency drives, such as new energy, charging stations, smart buildings, and industrial control. Functions include: short-circuit protection, overload protection, earth leakage protection (Type B), and isolation protection (not applicable for 1PN, 3PN).