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The Lewden Compact RCBO (152133) is a specialized electrical protection device designed for professional electricians and homeowners looking to upgrade their consumer units with modern safety standards. It provides essential protection against both overload and residual current, helping to prevent fire and electrical shock. While it offers a space-saving design suitable for most residential and commercial setups, it is crucial to ensure it is installed by a qualified professional to meet current wiring regulations.
| Series | Compact |
|---|---|
| Model Part Number | 152133 |
| Brand | Lewden |
An RCBO is a Residual Current Breaker with Overcurrent, which combines the functions of an MCB (miniature circuit breaker) and an RCD (residual current device) in one unit.
Class A RCDs are capable of detecting both AC and pulsating DC residual currents, which are common in modern homes due to electronics, LED drivers, and inverters.
No. Electrical work in a consumer unit is high-risk and must be performed by a qualified electrician to comply with building regulations and safety standards.
This is the trip sensitivity; the device will cut power if it detects a leakage current of 30 milliamperes, providing protection against fatal electric shock.
It is designed for standard DIN rail mounting, but compatibility depends on the busbar system and space available in your specific consumer unit housing.
Check the circuit for a genuine earth fault or neutral-to-earth fault; disconnect appliances on the circuit one by one to isolate the fault.
Verify that the device is receiving input power and ensure the internal mechanism is not jammed; replace the unit if the test button remains unresponsive.
Installation must be performed by a qualified electrician in accordance with current IET wiring regulations. This device is designed for DIN rail mounting inside a compatible consumer unit. Ensure all conductors are stripped to the appropriate length and fastened securely into the terminals, which accommodate cable sizes up to 16mm squared. For care, perform regular functional testing using the integrated 'T' or test button every six months to verify the mechanical operation of the RCD mechanism. If the device fails to trip during a test, it must be replaced immediately.
