Timeguard TX2406 6A 30mA Solid Neutral RCBO B Curve 6kA, 30mA Type A, Uni-Directional

The Timeguard TX2406 6A 30mA Type A RCBO combines overload, short-circuit and residual-current protection in one compact device. Designed for Timeguard TX series consumer units, it provides protection for an individual circuit within a single-module housing.

Its 6A current rating, B-curve characteristic and 30mA residual-current sensitivity perform different roles. The 6A rating forms part of the circuit’s overcurrent protection, while the residual-current function detects an imbalance between the current flowing through the line and neutral conductors.

Type A protection explained

The Type A classification means the residual-current function responds to sinusoidal AC and pulsating DC residual currents. This is separate from the B-curve characteristic, which describes the breaker’s response to a high overcurrent.

The circuit’s connected equipment, cable protection and installation requirements must all be considered when selecting the device.

Solid neutral and unidirectional operation

This model has a solid neutral, meaning the neutral remains connected when the protected line pole opens. It should therefore be distinguished from a switched-neutral RCBO.

It is also unidirectional. Supply and load connections must follow the manufacturer’s markings, and the device must not be selected for a circuit requiring bidirectional power flow.

Different terminal capacities and tightening torques

The top terminals accept conductors up to 10mm², with a specified tightening torque of 1.2Nm. The bottom terminals accept up to 25mm², with a tightening torque of 2.5Nm.

Terminal blanking plates help prevent incorrect cable or busbar insertion. A contact position indicator and test button are included, and the device can be removed without removing the busbar once the assembly has been safely isolated.

Measuring 18mm wide × 85mm high × 73mm deep, the RCBO mounts onto a 35mm DIN rail. Timeguard provides a five-year guarantee, subject to its applicable terms.

Manufacturer compatibility is limited to Timeguard TX series consumer units.