Review on ESUPPORT 12V 200A Relay Car Truck Boat Marine Heavy Duty Split Charge RL180 WM686: Ultimate Power and Efficiency at Your Fingertips by Lancy Rakesh

Suspicious Current Rating I bought a pair of these 100A relays for a medium load project (less than 20A), one fell off after a few dozen Cycles off and the second one regularly failed. I ordered a second set of 200 amp, visual inspection showed these relays are exactly the same as 100 amp, same size and same part number, only difference is they changed the label from 100 amp to 200 amp. The manufacturer's specs show a 90 ohm DC coil resistance with 100,000 duty cycles and a mechanical life of 10,000,000 (ten million! That's right!). The actual DC resistance of these relays is less than 30 ohms with a very limited duty cycle.