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We have a battery operated device that needs to operate when there is a power cut, in effect like an emergency light fitting would.
Can any one help with a switch that will be triggered when power to the property is lost so that the battery operated device will run the frost protection device. Have thought about rigging up a bit of a homemade setup with a relay and just have the battery wired through NC so that the relay will be on all the time there is power to the property.
Can any one help with a switch that will be triggered when power to the property is lost so that the battery operated device will run the frost protection device. Have thought about rigging up a bit of a homemade setup with a relay and just have the battery wired through NC so that the relay will be on all the time there is power to the property.