Electrical Construction & Maintenance (EC&M) Magazine

Code Q&A

Sep. 4, 2008 Mike Holt | Electrical Construction and Maintenance

Is a disconnect required to be within sight of electric space-heating equipment if the unit has a factory-installed circuit breaker?

Q. Is a disconnect required to be within sight of electric space-heating equipment if the unit has a factory-installed circuit breaker?

A. No. A unit switch with a marked “off” position that is an integral part of the equipment can serve as the heater disconnecting means, if it disconnects all ungrounded conductors of the circuit [424.19(C)].

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