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Designed for AC 230V 50/60Hz circuits, this household contactor switches loads remotely for domestic lighting, heating, ventilation and hotel power control applications. 2NO + 2NC Configuration: Features 2 Normally Open and 2 Normally Closed contacts within a single 4-pole unit, offering versatile switching options for complex domestic and commercial automation tasks. Modular DIN rail mounting design for quick installation on standard 35mm din rail inside consumer units, distribution boxes and electrical control cabinets. Adopts flame‑retardant plastic housing, stable mechanical structure for frequent switching operations under AC‑7a / AC‑7b application categories. Smart Automation Applications: An essential component for building automation. Suitable for pairing with timers to control underfloor heating, Economy 7 night storage heaters and EV charger low‑voltage control circuits (not for direct main‑load switching)