Timeguard TX2450 50A 30mA Solid Neutral RCBO B Curve 6kA, 30mA Type A, Uni-Directional
Estimated delivery time: Estimated delivery tomorrow*
Description
The Timeguard TX2450 is a 50A, 30mA Type A RCBO with a B-curve overcurrent characteristic and 6kA breaking capacity. It combines overload, short-circuit and residual-current protection for an individual circuit in a compatible Timeguard TX series consumer unit.
This is the solid-neutral, unidirectional version. When ordering a replacement, check the complete specification: matching the current rating and physical size alone does not establish that another RCBO is interchangeable.
Choose the correct current rating and tripping curve
The 50A rating must suit the circuit’s cable, connected equipment and installation conditions. It should not be selected simply as an upgrade to a lower-rated device.
B-curve describes the RCBO’s overcurrent operating characteristic. The alternative TX2450C has a C-curve characteristic, so the final letter matters when selecting the correct model.
Understand solid neutral and unidirectional operation
With a solid neutral, the neutral remains connected when the protected line pole opens. The installation’s isolation requirements must therefore be assessed separately.
Unidirectional operation means supply and load connections must follow the manufacturer’s markings. This model must not be selected for a circuit requiring reverse or bidirectional power flow.
The 30mA Type A residual-current function detects specified earth-leakage conditions, responding to sinusoidal AC and pulsating DC residual currents.
Compact dimensions and clearly specified connections
The single-module housing measures 18mm wide × 85mm high × 73mm deep and mounts onto a 35mm DIN rail.
Top terminals accept conductors up to 10mm², with a specified tightening torque of 1.2Nm. Bottom terminals accept up to 25mm², with a tightening torque of 2.5Nm. Terminal blanking plates help prevent incorrect cable or busbar insertion.
A test button and contact position indicator are included. The RCBO can also be removed without removing the busbar once the assembly has been safely isolated.
Timeguard provides a five-year guarantee, subject to its applicable terms. Manufacturer compatibility is limited to Timeguard TX series consumer units.