Live Electrical CB350D 3 Pole 50A D Curve 10kA MCB
The Live Electrical CB350D 3 Pole 50A D Curve 10kA MCB is a bi-directional miniature circuit breaker designed for three-phase electrical distribution. Featuring a 50A current rating and 10kA breaking capacity, this device provides overcurrent and short-circuit protection in commercial and industrial installations.
Features and applications
The D curve tripping characteristic makes the CB350D suitable for selected circuits with high starting currents, including motors, transformers and other inductive equipment. Its three-pole configuration provides coordinated circuit protection, while the compact 54mm width allows installation within suitable distribution boards using a standard 35mm DIN rail.
With a rated operational voltage of 230/400V AC and an IP20 protection rating, this MCB is designed for use in appropriate electrical enclosures. Selection must account for prospective fault current, starting characteristics and required disconnection times.
Technical specifications – Live Electrical CB350D 3 Pole 50A D Curve 10kA MCB
- Manufacturer: Live Electrical
- Part number: CB350D
- Rated current: 50A
- Number of poles: 3
- Tripping characteristic: Curve D
- Rated breaking capacity: 10kA
- Rated operational voltage: 230/400V AC
- Rated frequency: 50/60Hz
- Standard: BS IEC/EN 60898
- Ingress protection: IP20
- Mounting: 35mm DIN rail
- Width: 54mm
- Maximum cable terminal capacity: 16mm²
Explore Live Electrical distribution equipment
For three-phase distribution installations, explore our Live Electrical TPN distribution boards. You can also browse the complete Live Electrical product range for additional circuit protection and distribution equipment.

