Operation part shape: Basic lever circuit: 4 poles double throw switch characteristics: ON-ON terminal shape: solder terminal rating: AC 125V-20A, AC250V-9A, DC30V-20A contact resistance: less than 10 mΩ Insulation resistance: DC 500V 1GΩ; Voltage: AC 2.0 kV; mechanical opening and closing durability: 50,0000000000 times more than 1 times more than 1 times electrical :25,0 Lever fallen angle (α): 25° Operating temperature range: -10~+70° C Panel Installation Method: Screw mounting type panel mounting hole dimensions: 0.5 inches (12.5 mm) Dia. Mounting panel thickness guide: 0.2 inches (5.6 mm) Max. Certification: CSA, UL listed model: S-42CSA-J, S-42UL-J.