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It features switched live and neutral disconnection for safe isolation
Modern inverter-driven heat pumps can generate smooth DC and high-frequency residual currents
Powder-coated steel body with a hinged
and overload protection in one compact device
The C curve prevents nuisance tripping while maintaining full circuit protection
Arc Fault Detection A-Type RCBO – WFD140B-030 (40A, B Curve, 30mA) 4 & 5 pole MCBs (&Shunt Trip) It features switched live andThe WFD140B 030 is a 40A, B Curve Arc Fault Detection (AFDD) RCBO, designed to deliver maximum protection against arc faults, earth leakage, overload, and short circuits in one compact unit. Built to BS 7671: 2018 (18th Edition) standards, it provides fire safe reliability for high load domestic and commercial circuits. Unlike a standard RCBO, this device features microprocessor driven arc fault detection that constantly monitors electrical waveforms.
US$ 747.50
US$ 19.99
