Description
40A Type A Bi-Directional RCBO B Curve 6kA
Timeguard TX2540 40A Type A Bi-Directional RCBO B Curve
The Timeguard TX2540 40A Type A Bi-Directional RCBO is a single-module residual current circuit breaker with overload and short-circuit protection, designed for modern electrical installations where electrical energy may flow in both directions, including photovoltaic, EV charging and battery storage systems.
Rated at 40A with a Type A residual current characteristic and 30mA sensitivity, this RCBO provides protection against AC and pulsating DC residual currents. The B curve tripping characteristic makes it suitable for circuits with low inrush currents, supporting reliable protection for domestic and light commercial applications.
The device features a single pole with switched neutral (1P+SwN) design in a single-module width, allowing high circuit density within consumer units. It mounts onto a standard 35mm DIN rail and can be removed without disturbing the busbar, simplifying installation and future maintenance.
With a 6kA short-circuit breaking capacity, the RCBO provides protection against earth faults, leakage current, short circuit and overloading. Terminals include an automatic blanking plate to prevent incorrect termination. The unit complies with BS EN 61009-1 and is intended for bi-directional applications in accordance with current wiring regulations.
Key Features – Timeguard TX2540 40A Type A Bi-Directional RCBO
- 40A rated current
- B curve tripping characteristic
- Type A residual current protection
- 30mA sensitivity
- 6kA breaking capacity
- Bi-directional operation
- Single pole with switched neutral (1P+SwN)
- Single-module width (18mm)
- 35mm DIN rail mounting
- Automatic terminal blanking plate
- Removable without removing the busbar
- 5-year guarantee
Technical Specification – Timeguard TX2540 40A Type A Bi-Directional RCBO
- Rated Current: 40A
- Tripping Curve: B Curve
- RCD Type: Type A
- Residual Current Sensitivity: 30mA
- Breaking Capacity: 6kA
- Voltage: 230–240V AC
- Frequency: 50/60Hz
- Poles: 1P + Switched Neutral
- Module Width: 18mm
- Mounting: DIN rail (35mm)
- Direction: Bi-Directional
- Standard: BS EN 61009-1
About Timeguard
Timeguard is a UK manufacturer of electrical control, timing and circuit protection products, supplying reliable solutions for residential and commercial installations. Timeguard RCBOs are designed to meet current UK wiring regulations, offering consistent performance, installer-friendly features and dependable long-term protection.
About Electrical4Less
We are Electrical4Less, an independent UK electrical wholesaler supplying reliable, regulation-compliant electrical products to trade and commercial customers. We are proud members of the IBA Buying Group and the Electrical Distributors’ Association (EDA), offering competitive pricing, dependable stock and knowledgeable support you can trust.
