Dishwasher plugged in

[jfrederick (Joshua Frederick)]

to switched garabage disposal outlet under sink. Yay or nay? Requirements for dishwashers to be hardwired?

Thanks in advance.

[sfogarty (Sean Fogarty)]

It shouldn’t be an issues as long as it meets manufacturer requirements and the cord insnt too long/sized accordingly.

They do make portable dishwashers…

[jwicklander (Jeffrey Wicklander)]

It’s good. That cord takes care of the disconnect requirement.

Jeff

[rmeier2 (Robert Meier)]

According to the NEC dishwashers are permitted to be cord and plug connected if such connections are permitted by the manufacturer of the dishwasher. As mentioned this also takes care of the disconnecting means. The requirments are quite restricitve. You cannot just cut off a section of extension cord and connect it to the unit. Is this dishwasher disposal combination connected to the same branch circuit?

422.16(2) Built-in Dishwashers and Trash Compactors. Built-in dishwashers and trash compactors shall be permitted to be cord-and-plug-connected with a flexible cord identified as suitable for the purpose in the installation instructions of the appliance manufacturer where all of the following conditions are met:
(1) The flexible cord shall be terminated with a grounding-type attachment plug.
Exception: A listed dishwasher or trash compactor distinctly marked to identify it as protected by a system of double insulation, or its equivalent, shall not be required to be terminated with a grounding-type attachment plug.
(2) The length of the cord shall be 0.9 m to 1.2 m (3 ft to 4 ft) measured from the face of the attachment plug to the plane of the rear of the appliance.
(3) Receptacles shall be located to avoid physical damage to the flexible cord.
(4) The receptacle shall be located in the space occupied by the appliance or adjacent thereto.
(5) The receptacle shall be accessible.

[dedwards (Doug Edwards)]

Occasionally, the duplex receptacle (has been modified) under the sink is two separate circuits, each being dedicated for separate use like what you are talking about. You have to make an effort to determine if this is the case. One is hardwired for the DW and the other is on a totally separate circuit with the switch for the disposal. Takes a few extra seconds to determine.

[Jim_Port]

@dedwards

Occasionally, the duplex receptacle (has been modified) under the sink is two separate circuits, each being dedicated for separate use like what you are talking about. You have to make an effort to determine if this is the case. One is hardwired for the DW and the other is on a totally separate circuit with the switch for the disposal. Takes a few extra seconds to determine.

Some are also on the same circuit and the duplex has been split into a hot/switched hot.