Residual current circuit breaker P 312 2P C 6 A 30 mA Type A DX3 series 411058

Protection and reliability in one device

This two-pole residual current circuit breaker P 312 from the DX3 series is the key to a safe and efficient electrical installation. It combines the functions of an overcurrent and residual current device, providing comprehensive protection against the effects of short circuits, overloads, and electric shocks. This solution is ideal for both professionals and end users who value safety and convenience.

Equipped with a C characteristic, the breaker responds rapidly to sudden current surges while tolerating brief overloads—particularly important when connecting devices with motors or other components generating high inrush currents. The rated current of 6A and residual current sensitivity of 30 mA ensure effective protection of electrical circuits in homes, apartments, and commercial buildings. Type A guarantees detection of both alternating sinusoidal currents and pulsating direct currents, expanding the scope of protection.

Design and Installation

The P 312 DX3 breaker is designed for easy mounting on a TH35 rail. Its compact dimensions (2 modules) save space in the distribution board. Connection via comb busbars or pin terminals simplifies integration with existing electrical infrastructure. Additionally, the breaker features a mechanical lock that prevents accidental re-energizing after tripping—enhancing safety during maintenance work. The built-in test button allows regular verification of the residual current device’s functionality, confirming its readiness to operate.

Compliance and Specifications

The breaker complies with IEC 60947-2 and EN 61009-1 standards, confirming its high quality and reliability. The rated short-circuit breaking capacity is 6 kA, ensuring effective protection of installations in the event of a short circuit. It supports single-core conductor cross-sections from 0.75 to 16 mm² and multi-core conductors from 0.75 to 10 mm², enabling connection to a wide range of cable sizes. The IP20 protection rating guards against finger contact and ingress of solid objects larger than 12.5 mm—ensuring safe operation under normal working conditions.