The type A 4-pin residual current circuit breaker (RCCB) has a rated residual current protection capacity of 10 kA and a nominal current of 40 A with a residual current sensitivity of 30 mA. Suitable for detecting pulsating DC residual currents, it provides additional safety in AC power grids. Ideal for use in residential and commercial areas where protection against electric shock and fire protection is prioritised. https://elecena.pl/product/29647666/cda640d-rccb-4-pin-10-ka-40-a-30-ma-type-a 2025-12-26 https://elecena.pl/product/29647666/cda640d-rccb-4-pin-10-ka-40-a-30-ma-type-a 2026-07-22