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Timeguard TX2350 50A 6KA Type B Curve MCB

SKU TX2350
Original price Β£2.47 - Original price Β£2.47
Original price
Β£2.47 inc VAT Β£2.06 exc VAT
Β£2.47 - Β£2.47
Current price Β£2.47 inc VAT Β£2.06 exc VAT inc VAT Β£2.06 exc VAT

Estimated delivery time: Estimated delivery tomorrow*

Description

The Timeguard TX2350 50A 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 has a 6kA breaking capacity and occupies one module.

It is an option for electricians selecting a protective device for a compatible installation or replacing an existing breaker where the circuit requires 50A B-curve protection.

Match the breaker to the complete circuit

The 50A current rating, B-curve characteristic and 6kA breaking capacity describe different aspects of the device.

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.

Choosing the correct breaker involves checking the cable, connected equipment, fault-protection requirements and consumer unit compatibility. A higher current rating should never be selected simply to prevent an existing breaker from tripping.

Practical connection and maintenance features

The terminal cages incorporate blanking plates that help prevent a cable or busbar from being positioned outside the clamp. Maximum terminal capacity is 25mmΒ², with a specified tightening torque of 2.5Nm.

A contact position indicator provides a visible indication of contact status. The MCB can also be removed without removing the busbar, helping with maintenance once the assembly has been safely isolated.

Compact fitting with a five-year guarantee

Measuring 18mm wide Γ— 81mm high Γ— 73mm deep, the breaker 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. Where residual-current protection is required, an appropriate RCD or RCBO arrangement must also form part of the installation design.

Specification
  • Range - TX circuit protection
  • Product Code - TX2350
  • Product Type - Miniature circuit breaker / MCB
  • Rated Current - 50A
  • Tripping Characteristic - B-curve
  • Number of Poles - Single pole
  • Rated Voltage - 240V AC
  • Short-Circuit Breaking Capacity - 6kA / 6000A
  • Energy Limiting Class - Class 3
  • Protection Functions - Overload and short circuit
  • Module Width - 1 module
  • Mounting - 35mm DIN rail
  • Maximum Terminal Capacity - 25mmΒ²
  • Terminal Tightening Torque - 2.5Nm
  • Terminal Feature - Blanking plates to help prevent incorrect cable or busbar insertion
  • 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 - 81mm
  • Width - 18mm
  • Depth - 73mm
  • Standards Listed - IEC/BS EN 60898-1 and IEC/BS EN 60947-2
  • Compatibility - Timeguard TX series consumer units only
  • Manufacturer’s Guarantee - 5 years
FAQ's

What is the Timeguard TX2350?

It is a 50A B-curve single-pole miniature circuit breaker with a 6kA breaking capacity. It provides overload and short-circuit protection within compatible Timeguard TX consumer units.

Is TX2350 B-curve or C-curve?

TX2350 is B-curve. The corresponding 50A C-curve model is TX2350C, so check the complete code when ordering.

What does the 50A rating mean?

It is the device’s rated current under specified conditions. The cable, installation method and connected load must be suitable for protection at that rating.

Will it trip immediately when the current exceeds 50A?

Not necessarily. Operating time depends on the size and duration of the overcurrent and the breaker’s time-current characteristic.

What is the instantaneous operating band of a B-curve MCB?

Under BS EN 60898-1, the B-curve instantaneous magnetic operating band is 3–5 times rated current. For a 50A device, this corresponds to 150–250A.

Does that mean it can carry 150–250A continuously?

No. That band describes short-duration magnetic operation. The rated current remains 50A.

How does TX2350 differ from TX2350C?

Both are rated at 50A, but their instantaneous magnetic characteristics differ. B-curve has a lower operating threshold than C-curve. They should not be interchanged without checking the circuit design.

Can I replace a 40A or 45A breaker with this 50A model?

Only after an electrician verifies that the complete circuit is suitable for 50A protection. Increasing the rating without checking the cable and installation can leave the circuit inadequately protected.