NewMar 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 on-board generator and inverter
** See below for custom plates

Mounting Flange Dimensions
All standard switches, Plus 63, 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”


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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
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.

Additional Information

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