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Timeguard TX2450C 50A 30mA Solid Neutral RCBO C Curve 6kA, 30mA Type A, Uni-Directional

Timeguard TX2450C 50A 30mA Solid Neutral RCBO C Curve 6kA, 30mA Type A, Uni-Directional

SKU TX2450C
Β£11.16 - Β£11.16
Β£11.16 inc VAT Β£9.30 exc VAT
Β£11.16 - Β£11.16
Β£11.16 inc VAT Β£9.30 exc VAT inc VAT Β£9.30 exc VAT

Estimated delivery time: Estimated delivery tomorrow*

Description

The Timeguard TX2450C is a 50A, 30mA Type A RCBO with a C-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. Check the complete specification when ordering a replacement, because other RCBOs with the same current rating can have different tripping, neutral-switching and power-flow arrangements.

Choose the correct current rating and 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 protective device.

C-curve has a higher instantaneous magnetic operating threshold than an equivalent B-curve device. This can accommodate brief starting currents where the equipment and circuit design support its use. The rated circuit current remains 50A.

The corresponding B-curve model is TX2450, so the final letter matters when selecting the correct version.

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 responds to sinusoidal AC and pulsating DC residual currents.

Compact dimensions and clearly specified connections

The single-module housing measures 18mm wide Γ— 85mm high Γ— 73mm deep and mounts onto a 35mm DIN rail.

Top terminals accept conductors up to 10mmΒ², with a specified tightening torque of 1.2Nm. Bottom terminals accept up to 25mmΒ², 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.

Specification
  • Range - TX circuit protection
  • Manufacturer Product Code - TX2450C
  • Product Type - RCBO
  • Rated Current - 50A
  • Rated Residual Operating Current - 30mA
  • Residual-Current Classification - Type A
  • Overcurrent Tripping Characteristic - C-curve
  • Short-Circuit Breaking Capacity - 6kA
  • Energy Limiting Class - Class 3, as listed in the manufacturer’s brochure
  • Pole Arrangement - Single pole with solid neutral
  • Neutral Switching - Unswitched
  • Directionality - Unidirectional
  • Protection Functions - Overload, short circuit and residual current / earth leakage
  • Rated Voltage - 240V AC, as listed in the datasheet
  • Rated Frequency - 50/60Hz, as listed in the datasheet
  • Module Width - 1 module
  • Mounting - 35mm DIN rail
  • Maximum Top Terminal Capacity - 10mmΒ²
  • Maximum Bottom Terminal Capacity - 25mmΒ²
  • Top Terminal Tightening Torque - 1.2Nm
  • Bottom Terminal Tightening Torque - 2.5Nm
  • Terminal Feature - Blanking plates to help prevent incorrect cable or busbar insertion
  • Test Button - Included
  • Contact Position Indicator - Included
  • Device Removal - Without removing the busbar
  • Electrical Endurance - 4,000 cycles
  • Mechanical Endurance - 10,000 cycles
  • Dielectric Strength - 2500V
  • Housing Material - PA6
  • Height - 85mm
  • Width - 18mm
  • Depth - 73mm
  • Standards Listed - IEC/BS EN 61009-1 and IEC/BS EN 61543
  • Compatibility - Timeguard TX series consumer units only
  • Manufacturer’s Guarantee - 5 years
FAQ's

How do I check whether TX2450C is the correct replacement?

Check the complete existing device code and the consumer unit’s approved-device information. The electrician must also confirm the current rating, residual-current type, tripping curve, neutral arrangement, directionality and circuit requirements.

What is the practical difference between TX2450C and TX2450?

Their overcurrent characteristics differ. C-curve has a higher instantaneous magnetic operating threshold than B-curve. Changing between them requires a circuit-design check; matching the 50A rating alone is insufficient.

Can I replace TX2440C with this 50A model?

Only after an electrician verifies that the complete circuit is suitable for 50A protection. Sharing the C-curve characteristic does not make a 40A and 50A device interchangeable.

Will C-curve stop tripping when equipment starts?

It may be appropriate where verified starting current is the cause and the circuit supports C-curve protection. It will not correct overloads, damaged wiring or faulty equipment.

Does C-curve allow a higher continuous load than B-curve?

No. Both 50A versions retain their 50A rated current. The curve describes the overcurrent operating characteristic.

Does solid neutral mean the neutral disconnects when the RCBO trips?

No. The protected line pole opens, while the neutral remains connected. The installation’s isolation requirements must be assessed separately.