Description
Reliable 20A 3 Pole Bi-Directional MCB Protection
Live Electrical CB320D Bi-Directional 20A 3 Pole MCB
Protect electrical circuits with the Live Electrical CB320D Bi-Directional 20A 3 Pole MCB. This 20A 3 pole MCB provides 10kA breaking capacity, Curve D performance and a bi-directional design for modern distribution boards, including renewable, battery storage and inverter-led installations where compatible.
Installers can use this Live Electrical MCB for three-phase distribution boards and multi-pole circuit protection in domestic, commercial and light industrial environments. Its compact modular format is designed for DIN rail mounting inside suitable consumer units and distribution boards, giving clear circuit protection with dependable switching and isolation.
Curve D tripping suits higher inrush loads such as transformers, motors and specialist equipment where suitable design allows. The bi-directional operation supports supply from either direction, helping electricians build flexible board layouts while maintaining safe, standards-led protection.
Key Features – Live Electrical CB320D Bi-Directional 20A 3 Pole MCB
- 20A rated miniature circuit breaker
- 3 pole bi-directional MCB for flexible circuit design
- 10kA short-circuit breaking capacity
- Curve D trip characteristic for appropriate load matching
- DIN rail mounting for compatible consumer units and distribution boards
Technical Overview – Live Electrical CB320D Bi-Directional 20A 3 Pole MCB
- Brand: Live Electrical
- SKU: CB320D
- Device type: Bi-directional miniature circuit breaker
- Current rating: 20A
- Number of poles: 3 pole
- Trip curve: Curve D
- Breaking capacity: 10kA
- Mounting: DIN rail
- Application: Consumer units, distribution boards and suitable protection assemblies
Why Choose This Product?
Choose the CB320D when you need reliable 20A circuit protection with Curve D performance and a bi-directional design. It is a practical choice for electricians building safe, tidy and future-ready electrical installations.
About Live Electrical
Live Electrical supplies practical circuit protection and electrical installation products built for everyday trade use across residential, commercial and specialist installations.
Guarantee & Compliance
Install only in compatible enclosures and in line with current wiring regulations. Check manufacturer data for full compliance details, ratings and installation guidance.

