Perko 8511DP Compact Battery Selector Switch
- Brand:
- Perko
- Part no:
- 8511DP
Image: Fisheries Supply
Where to buy
Manuals
- Installation instructions (PDF)it.perko.com
The Perko 8511DP is a compact battery selector switch with a rotary action, sold without a key lock. It measures 4-3/4" in diameter and 1-7/8" deep, so it takes little space to mount. It is a medium duty on/off selector for 12, 24 and 32 volt marine electrical systems, and the knob turns through 90° positions that are easy to identify.
Our take
At 4-3/4" across and 1-7/8" deep, this switch keeps its footprint small, and the 90° rotation makes each position easy to identify. It is the version without a key lock.
From our buying guide
Perko says its selector switches can be switched between 1, ALL and 2 with the engine running, and that they let you put batteries in parallel for emergency starting. Battle Born advises against that connection with its LiFePO4 batteries.
Check before you buy:
- Its continuous and 5-minute ratings suit your system. Perko rates its medium-duty 8501 at 250 A continuous.
- It has an alternator field disconnect if you need one. Perko says its AFD models protect non-unitized alternators if the switch is turned OFF with the engine running.
- If it's going in a gasoline engine space, the maker lists it as ignition protected.