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Timeguard TX1904B IP2X 4 Modules 2 Free Ways 1 x 63A 30mA Type B RCD

Timeguard TX1904B IP2X 4 Modules 2 Free Ways 1 x 63A 30mA Type B RCD

SKU TX1904B
£45.11 - £45.11
£45.11 inc VAT £37.59 exc VAT
£45.11 - £45.11
£45.11 inc VAT £37.59 exc VAT inc VAT £37.59 exc VAT
Datasheet

Estimated delivery time: Estimated delivery tomorrow*

Description

Timeguard TX1904B 2-Way Metal Consumer Unit with 63A 30mA Type B RCD – IP2X

The Timeguard TX1904B is a surface-mounted steel consumer unit supplied with a 63A 30mA Type B RCD and two free outgoing ways. Its four-module enclosure provides a small distribution board that an electrician can complete with suitable outgoing protective devices.

The manufacturer identifies this range for domestic new-build and refurbishment installations. The RCD is already fitted, while outgoing MCBs are selected separately to suit the circuits.

Why the Type B RCD Matters

The defining feature of this model is its Type B residual-current protection, which includes detection of smooth DC residual currents. This distinguishes it from the Type A-equipped TX1904.

“Type B” here describes the RCD’s response to residual-current waveforms. It does not mean that B-curve MCBs are supplied.

The correct RCD type depends on the connected equipment and installation design, including any upstream RCDs. Your electrician should check those requirements before selecting the board.

Understand the Current Ratings

The 63A rating relates to the fitted RCD’s rated current. The 30mA rating identifies its residual-current sensitivity.

The RCD does not replace the overload and short-circuit protection required for the circuits. Appropriate overcurrent protection must still form part of the installation design.

Practical Cable Access

A raised, removable DIN rail allows cables to pass underneath. The floating busbar has a pre-fitted protective cover, while top, bottom, rear and side entries provide options for different cable approaches.

A live busbar, blank modules, rear-entry grommet and circuit identification labels are supplied. Use compatible Timeguard TX-series consumer unit devices only.

Size and Installation Environment

The back box measures 259mm high × 160mm wide × 87mm deep. The steel enclosure is rated IP2X, and the instructions specify indoor use.

 

Specification
  • Surface mounted, steel enclosure with curved lockable lid (lock supplied separately)
  • Pre-wired with 63A Type B RCD
  • 2 Free Ways
  • Large cable entries on rear, supplied with grommets with multiple cut-outs
  • Raised DIN rail to allow cables to pass underneath
  • Floating busbar with pre-fitted cover for greater installation flexibility
  • Supplied with circuit identification label sheet and blank modules
  • 10-year guarantee
  • Product type - Type B RCD consumer unit
  • Enclosure material - Steel
  • Mounting - Surface mounted
  • Total module capacity - 4 modules
  • Free outgoing ways - 2
  • Fitted protective device - 1 × 63A 30mA Type B RCD
  • Maximum assembly current - 63A, according to the model-specific datasheet
  • Residual-current sensitivity - 30mA
  • Outgoing MCBs - Selected separately
  • Device compatibility - Timeguard TX-series consumer unit devices only
  • Supply - 220–240V AC, 50Hz, according to the shared installation instructions
  • IP rating - IP2X
  • Installation environment - Indoors
  • Neutral bars - 1
  • DIN rail - Raised and removable
  • Busbar - Floating design with pre-fitted protective cover
  • Back-box dimensions - 259mm H × 160mm W × 87mm D
  • Top knockouts - 2 × Ø20mm and 1 × Ø32mm
  • Bottom knockouts - 2 × Ø20mm and 1 × Ø32mm
  • Rear knockout - 1 × 90mm × 50mm
  • Side knockouts - 1 × Ø32mm on each side
  • Included accessories - Live busbar, blank modules, rear grommet and circuit identification labels
  • Visor locking kit - Available separately
  • Enclosure standard - BS EN 61439-3
  • Published guarantee - 10 years
FAQ's

What is the Timeguard TX1904B?

It is a four-module steel consumer unit supplied with one 63A 30mA Type B RCD and two free outgoing ways.

Are outgoing MCBs included?

No. The manufacturer lists the RCD as fitted, with outgoing protective devices selected separately.

Why are there only two free ways in a four-module enclosure?

Four modules describes the enclosure’s total capacity. Two outgoing positions remain available in the supplied configuration.

How does TX1904B differ from TX1904?

TX1904B has a Type B RCD. TX1904 has a Type A RCD. Both are listed with two free ways and a 63A 30mA RCD.

What does Type B mean for this RCD?

It describes the residual-current waveforms the RCD can detect, including smooth DC residual currents.

Is a Type B RCD the same as a B-curve MCB?

No. RCD type concerns residual-current detection; an MCB’s B curve concerns its instantaneous overcurrent-tripping characteristic.

Does the fitted RCD provide overload and short-circuit protection?

No. Appropriate overcurrent protection is still required. The RCD does not replace the outgoing circuit protection or its coordination with the supply.