Description
Most “reverse polarity” switches sold for RV jacks are momentary — they spring back to off when released. A thermoelectric cooler needs a switch that stays put, which is what latching means here: flip it to one side for cooling, the other for warming, centre for off.
Make sure you order the Latching style — the same listing also offers a momentary version, which will not work for a cooler.
Specifications
Type: DPDT toggle, polarity reversing, latching ON-OFF-ON (centre = off)
Rating: 30 A at 12 V DC; 15 A at 250 V AC
Pre-wired: reversing jumper bars fitted; four 14 AWG leads — red and black from the middle of the long side (supply), two blue from one end (load)
Included: waterproof toggle cap
Brand: DaierTek — order the Latching style, not Momentary
Cooler use: a Coleman thermoelectric cooler draws about 4 A, a fraction of this switch’s rating
