Marquardt 1820 Series Toggle SwitchesMarquardt 1820 series single and double pole toggle switches. The 1820 toggle switches are suitable for use in Class II appliances and are available in a choice of SPST, SPDT, DPST or DPDT switching formats including SPDT center off changeover with latching action contacts (see stock number 741-1003). A black Neoprene® lever cover which simply screws onto the toggle switch M12x0.75mm bush is available to protect the actuator from dust and water ingression.Long mechanical and electrical life Contact distance ≥3mm (apart from stock number 741-1003 which has a contact distance Contact resistance Insulation resistance >100MΩ Electrical connection via Solder tag or 4.8mm Faston/Quick Connect style terminals UL 94 V-2 flammability rated ### 注See stock number 103-9475 for Neoprene® protective cover. Neoprene is a registered trademark of DuPont.### 认可UL; CSA; ENEC### 扳钮开关**瞬时功能**（弹簧加载复位）： | 当负载解除时，开关或触点断路器恢复到其原来位置。 例如电铃按钮） ---|--- **锁定型功能**： | 负载解