BG CUCRC20DPA — 20A C Curve Type A Bidirectional RCBO (30mA, Double-Pole)
The BG Fortress CUCRC20DPA is a 20A C-curve bidirectional RCBO that combines residual-current protection with overload and short-circuit protection in a single compact module. Designed for domestic, commercial and renewable-ready installations, it offers 30mA Type A RCD protection to detect AC and pulsed DC leakage, while providing robust circuit protection against overloads and faults.
Its bidirectional design means the RCBO can safely operate where current may flow in both directions — such as in solar PV, battery storage or other generation-linked circuits — while also protecting lighting, socket and appliance circuits when used in BG consumer units and DIN-rail enclosures.
The CUCRC20DPA integrates two key safety functions in a single module:
Residual-current protection (RCD) trip at 30mA to guard against electric shock and leakage faults
Miniature circuit breaker (MCB) protection with a C-curve characteristic for overload and short-circuit events
This combined protection ensures both live and neutral poles are isolated during a fault for improved safety and compliance with BS 7671 regulations.
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Designed for efficient installation and reliable performance, this RCBO offers:
Compact single-module width to maximise cable routing space in consumer units
Manual test button for simple periodic safety checks
Integrated neutral lead for streamlined wiring
35 mm DIN-rail compatibility for quick, secure fitting in BG units and other enclosures
Operating range suitable for typical ambient conditions (-25 °C to +40 °C)
Key Features of the BG 20A Bi-Directional RCBO C Curve Include:
- 20 A C-Curve RCBO Combines Overcurrent and Earth-Leakage Protection
- Type A 30 mA Residual Current Sensitivity Detects AC and Pulsed DC Faults
- Bidirectional Design for Circuits Where Current May Flow in Both Directions
- Double-Pole Isolation Disconnects Live and Neutral Poles During Faults
- Compact Single-Module Width Saves Space in Consumer Units
- Manual Test Button for Quick Safety Checks
- Integrated Neutral Lead Simplifies Installation
- 6 kA Breaking Capacity for Reliable Fault Protection
- Mounts Easily on Standard 35 mm DIN Rail
- Suitable for Domestic, Commercial and Renewable Power Applications
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