BG Fortress CUMB50 50A 6kA Single Pole Type B MCB

£2.50 £3.00 Inc VAT

Technical Specifications

Attribute Detail
Manufacturer BG Electrical
Range Fortress
Product Code CUMB50
Amperage 50A
Breaking Capacity 6kA
Tripping Curve B-Curve
Number of Poles 1 Pole (Single Pole)
Voltage Rating 230V AC
Standard BS EN 60898-1

8 in stock

Estimated Standard Delivery May 27, 2026 - May 28, 2026

Description

The BG Fortress CUMB50 is a heavy-duty 50 Amp Miniature Circuit Breaker, engineered for high-demand residential and light commercial circuits. When standard 32A or 40A breakers aren’t enough, the CUMB50 provides the necessary overhead for powerful electric showers (9.5kW – 10.5kW) and dedicated sub-main distributions.

Designed to integrate perfectly with the BG Fortress consumer unit range, this 50A B-Curve MCB ensures your high-power installations remain safe, compliant, and reliable.

Key Features & Benefits

  • High-Power Capacity: 50A rating, specifically designed for high-wattage electric showers and powerful domestic appliances.

  • Type B Tripping: Standard domestic sensitivity, tripping at 3 to 5 times the rated current to protect against overloads while minimizing nuisance trips.

  • Robust 6kA Rating: High short-circuit breaking capacity ensures the device can safely interrupt faults in high-demand environments.

  • Installer-Centric Design: Features captive terminal screws and a clear Red/Green positive contact indicator for rapid status checks.

  • Space-Efficient: Occupies a single module space, leaving plenty of room for wiring and additional components like SPDs or RCBOs.