LIVE Electrical CN120B 20A Type B 6kA 1P+N Miniature Circuit Breaker (MCB)
The LIVE Electrical CN120B 20A Type B Miniature Circuit Breaker (MCB) is designed to provide reliable overload and short-circuit protection for domestic and commercial electrical installations. Featuring a 1P+N configuration, 6kA breaking capacity and compact single-module design, this circuit breaker is specifically engineered for use with LIVE Electrical SRN Dual Busbar consumer units.
With a 20A rated current and Type B tripping characteristic, the CN120B offers effective circuit protection for appropriately rated electrical loads with low inrush currents. Its compact construction allows efficient use of space within compatible distribution boards, making it a practical choice for electrical contractors and installers.
Key Features
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20A Rated Current: Provides overload protection for electrical circuits designed for a 20A protective device.
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Type B Tripping Curve: Suitable for circuits with low inrush currents, including appropriately designed domestic and commercial applications.
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6kA Breaking Capacity: Designed to interrupt short-circuit fault currents up to its rated breaking capacity of 6000A.
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1P+N Configuration: Combines single-pole overcurrent protection with neutral switching in a compact device.
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Single-Module Design: Space-saving construction helps maximise available capacity within compatible consumer units.
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240V AC Rated Voltage: Suitable for appropriately rated single-phase electrical installations.
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SRN Dual Busbar Compatibility: Specifically designed for LIVE Electrical SRN Dual Busbar distribution boards.
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IP20 Protection: Provides protection against finger access to hazardous parts.
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10mm² Terminal Capacity: Accommodates conductors up to the specified maximum terminal capacity.
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Wide Operating Temperature Range: Designed to operate in ambient temperatures from -25°C to +40°C.
Technical Specifications
| Manufacturer |
LIVE Electrical |
| Product Code |
CN120B |
| Product Type |
Miniature Circuit Breaker (MCB) |
| Pole Configuration |
1P+N |
| Rated Current |
20A |
| Rated Voltage |
240V AC |
| Tripping Characteristic |
Type B |
| Rated Frequency |
50/60Hz |
| Number of Modules |
1 |
| Short-Circuit Breaking Capacity |
6kA |
| Mechanical Life |
4,000 Cycles (as supplied) |
| Degree of Protection |
IP20 |
| Maximum Terminal Capacity |
10mm² |
| Terminal Tightening Torque |
1.2Nm |
| Operating Temperature |
-25°C to +40°C |
| Compatible Distribution Boards |
LIVE Electrical SRN Dual Busbar Boards |
Applications
The LIVE Electrical CN120B 20A MCB is suitable for appropriately designed domestic and commercial electrical installations requiring Type B overcurrent protection. Typical applications may include selected radial socket circuits, fixed electrical equipment and other circuits with suitable load characteristics. It is designed for installation within compatible LIVE Electrical SRN Dual Busbar consumer units.
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