Nemar offers DC Power Onboard with AC source switches and switch panels. Newmar has a variety of switches for any boat with an onboard AC generator or inverters. The switch is offered in 30, 63, and 126 amps with 2 poles and 2 to 3 switch positions. Newmar also can offers custom configurations to meet your AC selector switch needs.

AC Source Switches
Standard Switches | Special Order Switches

Standard Switches An Ac source selector switch is an essential item for any boat with an on-board AC generator and/or inverter. The switch eliminates the safety hazard and/or damage that can occur if two AC sources are applied to the same circuit simultaneously.
These switches are fitted with a compact escutcheon plate with engraved switch position nomenclature (mounting dimensions below). The switches carry UL and CSA approval, are CE marked, and feature heavy duty contacts and a positive step cam mechanism for low resistance contact closure. May be installed in panel with thickness up to 1/4”.

Model	Amperage @ 115/230	Number of Poles	Switch Positions	Escutcheon Plate Markings	Depth Dimensions
SS-3.0	30	2	2 + "OFF"	GEN-OFF-SHORE	2 1/8"
SS-7.5	63	2	2 + "OFF"	GEN-OFF-SHORE	2 3/8"
SS-7.5 INV**	63	2	3 + "OFF"	OFF-GEN-INV-SHORE	3 1/2"
SS-15*	126	2	2 + "OFF"	GEN-OFF-SHORE	4"

*May be configured as a 63 amp, 4 pole switch
† For vessels with onboard generator and inverter

Mounting Flange Dimensions

All standard switches, Plus 63 and 80 Amp special order switches.

100 and 125 Amp special order switches only.

Depth Dimensions
SS-3.0	2 1/8”
SS-7.5	2 3/8”
SS-7.5 INV	3 1/2”
SS-15	4”

Special Order Switches
If none of the standard switches listed above meet your requirements, NEwmar will custom configure an AC selector switch for you. Please allow 2 weeks for shipment. Contact factory for pricing.

1) Determine the following:
A) Amperage/kW rating required
B) Number of switch positions required
C) Number of poles required

2) Use the chart below to determine model number:

Amperage/kw Rating @ 120 VAC	2 Position Plus Off		3 Position Plus Off		4 Position Plus Off
Amperage/kw Rating @ 120 VAC	2 Pole	3 Pole	2 Pole	3 Pole	2 Pole	3 Pole
63 Amp (7.5 kw)	S-622	S-632	S-623	S-633	S-624	S-634
80 Amp (10 kw)	S-822	S-832	S-823	S-833	S-824	S-834
100 Amp (12.5 kw)	S-1022	S-1032	S-1023	S-1033	S-1024	S-1034
125 Amp (15.5 kw)	S-1222	S-1232	S-1223	S-1233	S-1224	S-1234

3) Select the desired switch selector position labeling from the following list:
SHORE	GEN	PORT SHORE	PORT GEN
SHORE 1	GEN 1	STBD SHORE	STBD GEN
SHORE 2	GEN 2	INV
or specify the position labeling you require.

If you have need for a specific arrangement of the switch selector position labels, please mention this at the time of ordering. Note: Combination switches similar to one used in our ES-5 panel also available. Contact factory for more information.