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Description
Type A RCBO with Curve B Tripping for Live Electrical TPN Boards
The Live Electrical 10kA RCBO 50A Curve B Type A 30mA 1P+N is a high-current protective device offering both overcurrent and residual current protection in one compact unit. It is engineered for Live Electrical TPN three-phase distribution boards, delivering safe disconnection during fault conditions while complying fully with BS EN 61009-1 and the 18th Edition Wiring Regulations.
Ideal for final circuits with stable resistive or low-inductive loads, this RCBO offers safe, regulation-compliant protection for high-capacity applications.
Curve B Characteristics and Applications
The Curve B tripping characteristic provides fast fault response at 3–5× the rated current. This makes it suitable for resistive or low-inrush loads such as lighting, sockets, and heating systems.
With 30mA Type A residual current sensitivity, the RCBO ensures disconnection during earth leakage involving AC or pulsed DC faults, reducing the risk of shock and fire.
Mounting and Compatibility
Configured as 1P+N, this RCBO offers complete disconnection of both phase and neutral conductors. It fits directly into DIN rail enclosures and occupies a single module space within Live Electrical TPN boards.
The terminals accept cables up to 16mm², supporting robust and high-current final circuit wiring.
Key Features
- Built for Live Electrical TPN distribution boards
- Rated current: 50A
- Tripping curve: B – ideal for resistive/low-inrush circuits
- Residual current sensitivity: 30mA (Type A – AC & pulsed DC)
- Breaking capacity: 10kA
- Configuration: 1P+N
- Mounting: DIN rail, 1 module width
- Terminal capacity: Up to 16mm²
- Standards compliance: BS EN 61009-1
- Suitable for high-load, low-inrush applications
Technical Specifications – RA150B-030
- SKU: RA150B-030
- Rated Current: 50A
- Voltage: 230V AC
- Tripping Curve: B
- Residual Sensitivity: 30mA, Type A
- Breaking Capacity: 10kA
- Poles: 1P+N
- Mounting: DIN rail, 1 module
- Terminal Capacity: Up to 16mm²
- Electrical Endurance: 4,000 cycles
- Mechanical Endurance: 10,000 operations
- Operating Temp: -5°C to +40°C
- Ingress Protection: IP20 (when enclosed)
- Compliance: BS EN 61009-1
Reliable High-Current Protection for Low-Inrush Circuits
The Live Electrical 10kA RCBO 50A Curve B Type A 30mA 1P+N provides high-capacity protection for circuits where low inrush and stable load characteristics are present. It is designed for seamless integration with Live Electrical TPN boards in residential and commercial settings.
