Timeguard TX2345C 45A 6KA Type C Curve MCB
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Description
The Timeguard TX2345C 45A C-curve MCB provides overload and short-circuit protection for an individual electrical circuit. Designed for Timeguard TX series consumer units, this single-pole miniature circuit breaker combines a 6kA breaking capacity with a compact one-module housing.
It is an option for electricians selecting a protective device for a compatible installation or replacing an existing breaker where the circuit requires 45A C-curve protection.
Why the C-curve characteristic matters
A C-curve MCB has a higher instantaneous magnetic operating threshold than an equivalent B-curve breaker. This can accommodate brief starting currents where the connected equipment and circuit design support its use.
The rated current remains 45A. Choosing C-curve does not increase the circuit’s permitted continuous load. Cable protection, equipment starting characteristics and the fault current needed to achieve the required disconnection time must all be checked.
Terminals designed to help prevent incorrect insertion
The terminal cages incorporate blanking plates that help prevent a cable or busbar from being positioned outside the clamp. Maximum terminal capacity is 25mm², with a manufacturer-specified tightening torque of 2.5Nm.
A contact position indicator provides a visible indication of contact status. The breaker can also be removed without removing the busbar, helping with maintenance once the assembly has been safely isolated.