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Electric Heater

goldenboy1818

Hi guys, on a house and they would like a outdoor patio heater fitted. It's only a small 1.5kw heater so we can add a spur off the kitchen/lounge ring. However in the manual it states it may need a type c mcb due to in rush current. Is this definitely needed ? Its currently on a hager type b 32 amp rcbo. Thanks

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    However in the manual it states it may need a type c mcb due to in rush current. Is this definitely needed ?

    Probably depends on the rating as well as the type they specify - a B32 (min current for instantaneous current 3x In = 96A, whereas for a C16 it would be 5x16A = 80A). So if the specify a C16 you're probably fine, at least from the heater's startup.

    If you had lots of other appliances on the same circuit starting up at the same time though (e.g. power coming back on after a power cut or the MCB being reset) there might be problems, but the rarity of such events may well make it tolerable.

         - Andy.

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    However in the manual it states it may need a type c mcb due to in rush current. Is this definitely needed ?

    Probably depends on the rating as well as the type they specify - a B32 (min current for instantaneous current 3x In = 96A, whereas for a C16 it would be 5x16A = 80A). So if the specify a C16 you're probably fine, at least from the heater's startup.

    If you had lots of other appliances on the same circuit starting up at the same time though (e.g. power coming back on after a power cut or the MCB being reset) there might be problems, but the rarity of such events may well make it tolerable.

         - Andy.

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