Residual current circuit breaker P 312 2P C 40 A 30 mA type AC, DX3 series 411017
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Sales unit dimensions and weight: 1 pcs
Residual current circuit breaker P 312 2P C 40 A 30 mA type AC, DX3 series 411017
Protection and Safety in Your Electrical Installation
This two-pole residual current circuit breaker (RCCB) from Legrand’s DX³ series combines protection against electric shock with protection against the effects of overloads and short circuits. It is an ideal solution for both professional electricians and end-users who value comprehensive protection of their electrical installations. The device is designed for operation in circuits with a voltage of 230V and a rated current of 40A.
The P 312 breaker features high operational effectiveness thanks to its C-characteristic, which provides delayed tripping during short-term overloads—particularly important when connecting devices with electric motors or other components generating high inrush currents. The rated residual current of 30mA ensures rapid response in the event of earth leakage, minimizing the risk of electric shock.
Design and Installation – Simplicity and Reliability
The breaker is designed for easy mounting on a TH35 rail. Its compact dimensions (2 modules wide) allow optimal space utilization in distribution boards. Additionally, the integrated lock prevents accidental switching-on after tripping, enhancing safety during maintenance work. Flexible connection options are available via comb busbars or pin terminals, supporting cable cross-sections from 0.75 mm² to 16 mm² (single-core) or 0.75 mm² to 10 mm² (multi-core).
Compliance with Standards and Additional Features
The device complies with IEC 60947-2 and EN 61009-1 standards, guaranteeing high quality and reliability. The rated short-circuit breaking capacity reaches up to 6kA, ensuring effective protection of the installation during severe faults. Equipped with a test button for regular verification of the residual current function, the breaker also features a simultaneously disconnected neutral pole, enhancing safety during servicing. Energy limitation class is 3, and the IP20 protection rating ensures protection against finger contact.