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Warning when using MVOLT Wiring Harness

Customers should be aware that fixtures from the factory include MVOLT battery packs.  This means that when replacing factory installed battery packs in 277 fixtures, the customer should be mindful of how the pre-existing battery pack is wired in.

Because the battery packs are set up for quick disconnection and easy installation, some customers plug in new batteries assuming that their replacement is MVOLT capable, which is not the case.

Factory installed MVOLT battery packs are wired where 277 runs through both the 120 and 277VAC circuits, so if a normal, non-MVOLT battery pack is plugged into a wiring harness intended for 277VAC from the factory, the normal battery pack will be damaged immediately by the 277VAC passing over its 120VAC designed circuit.

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