U2-326 Park Brake Switch. This heavy duty push-pull switch was designed specifically for off-road heavy duty equipment. With an electrical life of 200,000 cycles and watertight to IP68S, the U2-326 park brake switch can withstand the most demanding applications. Push Force: 13.0 (58 N) +/- 50% Pull Force: 6.1 (27 N) +/- 50% Seal: Watertight to IP68S Electrical Life: 200,000 cycles Button: Aluminum alloy, red anodized Housing: Aluminum alloy, black anodized. RoHS Compliant.