The Newmar 7.5KW Transfer AC Source Selector Switch Nomadic Supply Company is an essential item for any vessel with an onboard AC generator and/or inverter. By isolating power source inputs, the Newmar 7.5 Transfer SS AC Source Selector Switch eliminates the safety hazard and/or damage that can occur if two AC sources are applied to the same circuit simultaneously.
Newmar 7.5 Transfer SS AC Source Selector Switch is fitted with a compact escutcheon plate with engraved switch position nomenclature.
The Newmar 7.5 Transfer SS AC Source Selector Switch carries cUL approval, is CE marked and features heavy-duty contacts and a positive step cam mechanism for low resistance contact closure. Newmar 7.5 Transfer SS AC Source Selector Switch may be rear mounted in a panel with a thickness up to 1/4”.
Newmar 7.5KW Transfer AC Source Selector Switch Specifications:
| Model | Amperage @ 115/230V |
Number of Poles |
Switch Positions |
Standard Plate Markings |
Depth Dimensions |
|---|---|---|---|---|---|
| SS-3.0 | 30 | 2 | 2 + “OFF” | SHIP-OFF-SHORE | 2-1/8” |
| SS-7.5 | 63 | 2 | 2 + “OFF” | SHIP-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” | SHIP-OFF-SHORE | 4” |
| * May be configured as a 63 amp, 4 pole switch † For vessels with onboard generator and inverter |
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Mounting Flange Dimensions
All Standard 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) | SS-7.5 | 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) | SS-15 | S-1232 | S-1223 | S-1233 | S-1224 | S-1234 |
3) Select the desired switch selector position labeling:
| 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. | |||
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to