NEXUS CUMB40-0140A B TYPE MCB

The NEXUS CUMB40-0140A B Type MCB is a miniature circuit breaker from Luceco UK Limited designed to provide reliable overcurrent and short-circuit protection for electrical circuits. With a B-curve tripping characteristic, it is suitable for circuits with low inrush currents, such as general lighting and socket outlets. This resettable device offers thermal-magnetic protection and is intended for installation in consumer units and distribution boards by a qualified electrician.

Engineered for dependable performance, the unit is compact and DIN-rail mountable, making it straightforward to install and service. It helps safeguard wiring and connected equipment by automatically disconnecting the circuit under fault conditions and can be quickly restored once the fault is cleared.

• Model: CUMB40-0140A
• Brand: NEXUS (Luceco UK Limited)
• Type: B-curve miniature circuit breaker (MCB)
• Rated current: 40 A
• Protection: Thermal-magnetic (overload and short-circuit)
• Application: General lighting and socket circuits with low inrush current
• Mounting: 35 mm DIN rail, for consumer units/distribution boards
• Operation: Resettable with toggle on/off mechanism
• Intended use: Domestic and light commercial installations
• Installation: By a qualified electrician