Timeguard TX2345 45A 6KA Type B Curve MCB
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Description
The Timeguard TX2345 45A B-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 suitable for electricians selecting a protective device for a compatible installation or replacing an existing breaker where the circuit design calls for 45A B-curve protection.
Check more than the amperage
The 45A current rating, B-curve characteristic and 6kA breaking capacity each describe a different part of the breaker’s performance.
The current rating forms part of the circuit’s overload protection design. B-curve describes its instantaneous magnetic response to a high current, while the breaking capacity relates to interrupting a short circuit under specified conditions.
When choosing a replacement, the cable, connected load, fault-protection requirements and consumer unit compatibility must all be checked. A matching amperage alone does not establish suitability.
Practical connection and maintenance features
The terminal cages incorporate blanking plates that help prevent a cable or busbar from being inserted outside the clamp. Maximum terminal capacity is 25mm², with a 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.