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Model numbers of electrical components in household distribution boxes

Common household distribution boxes include components such as MCBs, RCDs, RCBOs, isolators, and surge protectors, each with specific model numbers from major manufacturers. Miniature Circuit Breakers (MCBs)MCBs protect circuits from overload and short-circuit conditions. Common models include: ABB S201-C6, S201-C10, S201-C16 (single-pole, rated 6A, 10A, 16A)Schneider Acti 9 iC60N C6, C10, C16Siemens 5SY61 C6, C10, C16Hager MCB MBN106, MBN110, MBN116Residual Current Devices (RCDs) / RCCBsRCDs detect leakage currents to prevent electric shock.

Typical models: ABB F202 AC 30mA, F204 AC 30mASchneider Acti 9 iID 2P 30mA, 4P 30mASiemens 5SM6 2P 30mA, 4P 30mAHager RCCB C16 30mA, C25 30mAResidual Current Breaker with Overcurrent Protection (RCBOs)RCBOs combine MCB and RCD functions: ABB F202 AC C16/30mA, F204 AC C10/30mASchneider Acti 9 iC60H C10/30mA, C16/30mASiemens 5SU1 C10/30mA, C16/30mAHager MCB+RCCB MCB106/30mA, MCB116/30mAIsolators / Switch DisconnectorsUsed to manually disconnect circuits for maintenance: ABB OT16F, OT25FSchneider A9F, A9F16Siemens 3RV1011-1KA10, 3RV1011-1KA15Surge Protective Devices (SPDs)Protect against voltage spikes: ABB OVR T2 275, OVR T2 385Schneider Acti 9 iPRD 275, iPRD 385Siemens 5SL6 275, 5SL6 385Busbars, Neutral Bars, and AccessoriesWhile busbars and neutral bars are often manufacturer-specific, typical part numbers include: ABB 1SNA115000R0100 (busbar)Hager KBN106 (neutral bar)Schneider Acti 9 DIN rail accessories: A9F 000 001Notes on SelectionEnsure compatibility with the distribution box (DIN rail spacing, rated current, short-circuit capacity).

Check local electrical codes (IEC 60898, IEC 61008, IEC 61009, BS 7671, or NEC) for required protection devices. Consider future expansion: choose boxes with spare ways and compatible busbars. These model numbers represent widely used components in residential distribution boards and can be sourced from authorized distributors or manufacturer catalogs.

Model numbers of electrical components in household distribution boxes

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