Switched Neutral Manual Transfer Switch

A manual transfer switch is installed next to the main service panel to override the normal electrical service with power from a backup generator during a power outage.

Switched neutral manual transfer switch. The switched neutral kit can upgrade most manual transfer switches from non switched neutral to switched neutral as required b y certain municipalities electrical inspectors and generators. One disadvantage is the design and construction of the neutral pole and contacts. This switched neutral kit can be used in single phase manual transfer switches up to 30 amps 125 250v. It operates with little or no arcing which minimizes the risk of erosion or degradation of the neutral contact.

A generac switch neutral works with the manual transfer switch to allow you to safely switch from utility to portable generator power in emergencies and power critical circuits through your home s electrical system. The subpanel will still be grounded from the unswitched ground wire from the main panel. If there is no grounded neutral conductor run to the transfer switch or if the transfer switch does not switch the grounded neutral conductor then the generator is not a separately derived system. How to install a manual transfer switch for backup system in 16 steps.

In this configuration the neutral is not solidly connected through the transfer switch but switched. If you cannot lift the bond disconnect the ground wire to the transfer switch at the generator or don t run a ground wire at all. However a 3 pole transfer switch with overlapping neutral contacts has several drawbacks. Also the neutral is designed to be switched simultaneously with the switching of the load carrying phases.

The new reliance panel link x series is a double pole manual transfer switch with an exclusive third pole for the neutral that switches sequentially. According to the 2011 national electrical code nec a separately derived power system is. The x series is perfect for use with generators having gfci protected outlets bonded neutral generators and installations requiring a separately derived system. The generator can optionally be grounded to a rod.

This is known as a switched neutral system and the neutral switching can be open or overlapping closed. The generac 6297 30 amp switch neutral kit for manual transfer switches is designed to enable manual transfer switches up to 30 amp to isolate the utility and generator neutrals. With a switched neutral the generator set can be wired as a separately derived system to the load and normal power supply. Three pole transfer switches with overlapping neutral contacts.

Note that neither neutral nor ground are switched in the transfer switch.