3P+N French Residual Circuit Breaker Commercial Power Distribution

Our 3P+N French Series Residual Circuit Breaker (LRPG Series) is a heavy-duty adjustable protection device, purpose-built for commercial and light industrial power distribution systems. This three-phase residual current protection circuit breaker integrates comprehensive leakage, overload, and short circuit protection, compatible with AC 50/60Hz systems and rated voltage 230V/400V, for commercial installations with rated current up to 60A. Also referred to as disjoncteur différentiel for French-standard commercial electrical installations, it is developed for commercial building contractors, industrial power system integrators, large facility maintenance providers, and utility commercial project partners. This adjustable three-phase circuit breaker delivers reliable safety for complex commercial electrical loads, while supporting infrequent line switching under normal operating conditions.

Core Features & Project-Focused Advantages

3P+N Full-Phase Protection for Commercial Three-Phase Systems

Engineered for 4-wire commercial power networks, this 3P+N residual circuit breaker provides synchronized protection for all three phase lines and the neutral line, eliminating phase imbalance risks and ensuring comprehensive safety for three-phase commercial loads, from HVAC systems to industrial auxiliary equipment.

Tunable Performance for Diverse Commercial Load Requirements

With wide-range rated current options (10A to 60A) and multi-level earth leakage sensitivity settings, our commercial power distribution breaker adapts to varying commercial load demands, from small retail spaces to large shopping mall distribution rooms. The adjustable design allows precise tuning to align with commercial electrical codes and project-specific load profiles.

Robust Design for Continuous Commercial Operation

Built with high-quality components, this three-phase leakage protection breaker delivers a mechanical lifespan of 8500 operations and an electrical lifespan of 1500 operations, designed to withstand frequent load fluctuations and switching demands of commercial environments, reducing long-term maintenance costs for facility operators.

Standardized Compliance for Streamlined Commercial Project Approval

This breaker meets international electrical safety standards for commercial installations, with full certification documentation available to support commercial project inspection and approval, making it the trusted choice for large-scale commercial construction and retrofitting projects.

Full Technical Specifications

Target Industries & Application Scenarios

This commercial residual current breaker is designed for professional partners in commercial construction, industrial infrastructure, and large facility management. Core application scenarios include:

Main distribution protection for commercial buildings, shopping malls and mixed-use complexes

Utility service connection interfaces for commercial and industrial end-user installations

Power distribution protection for hotel, hospital and high-rise office building three-phase systems

Auxiliary power circuit protection for light industrial workshops and manufacturing facilities

Integrated installation in commercial energy meter rooms and central distribution cabinets

Secondary distribution protection for data centers and commercial communication facilities

Electrical safety retrofitting for existing commercial and public infrastructure properties

Product Operate Guide

Pre-Installation System Verification: Confirm the breaker’s rated voltage, current, and pole configuration match the three-phase commercial system design; validate device integrity and certification compliance for project requirements.

Standardized Mounting: Install the breaker securely on a standard 35mm DIN rail in the commercial distribution cabinet, ensuring sufficient clearance for three-phase wiring and heat dissipation.

Three-Phase Wiring & Parameter Tuning: Connect three phase lines and neutral line strictly according to terminal markings; configure rated current and leakage sensitivity based on the commercial load’s power rating and safety requirements.

Pre-Commissioning Functional Test: After wiring, perform a full functional test, including closing the breaker, activating the test button to verify leakage protection, and checking phase balance before grid connection.

FAQ

Is this 3P+N circuit breaker compatible with 400V three-phase commercial power systems?

Yes. This commercial power distribution circuit breaker is specifically engineered for AC 50/60Hz 230V/400V three-phase four-wire systems, the standard configuration for commercial and light industrial power networks globally.

Can this breaker be used for infrequent line switching in commercial distribution systems?

Yes. In addition to core leakage, overload, and short circuit protection, this device is designed for infrequent operation and switching of commercial distribution lines under normal conditions, supporting routine maintenance and load adjustment operations.