Circuit Protection Devices – MCBs, RCDs & RCBOs
Shop circuit protection devices for domestic, commercial and specialist installations, including MCBs, RCDs, RCBOs and surge protection. Use the filters to narrow the range by device type, rating and application.
Device selection depends on the circuit design, load characteristics, prospective fault current, required residual-current response and the equipment manufacturer’s instructions.
Quick guide: MCBs provide overcurrent protection; RCDs respond to residual current; RCBOs combine both functions for individual circuits. RCD type, trip curve, current rating and breaking capacity must be selected for the installation.
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MCBs: B, C and D curves for different load and inrush characteristics
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RCDs: Type A, Type B and specialist time-delay options
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RCBOs: combined overcurrent and residual-current protection per circuit
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Specialist protection: high-immunity devices, AFDDs and surge protection