Product code: P01490
4 position (1 ON / 2 ON / 1+2 ON / OFF), single pole marine battery isolator / changeover (master) switch rated at 100A continuous use. Features a chunky control knob with a positive switching action.
Used for switching between, or combining, two independent battery banks in charging and discharging applications and for isolation from loads or a charging source. Also useful for preventing parasitic battery drain when left for long periods or as an emergency shut-off in boats and vehicles.
Surface-mounted with slide-out cable entry panels.
Sold individually. Fixings not included.
Note: If this switch is used to isolate a starter battery it should not be switched to the OFF position when the engine is running (except in an emergency situation) because there is a high risk of damage to the diodes in the alternator rectifier unit.
Part Number: BIS1027
All as advertised, would use again
Used to switch between leisure batteries and power distribution board. Works well in an awkward position.
The isolator is a compact footprint, and seems robust. I have not run final commissioning and life tests on the DC to AC unit I have used it in yet but....During assembly the triangular internal contact came loose and jammed the switch. Panic - I was putting the DC to AC power unit fout for its first filed test the next day! So I disassembled the switch and reassembled it correctly and all is fine now. It was lucky that I had a square headed screw driver from when I lived in Canada though!
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