Notice:KLD28 KJD17 are just named differently. The operate and look are the same, and they're despatched randomlyProduct name: Electromagnetic Push button switchModel: KJD17/KJD17A(KLD28/KLD28A)Rated Voltage:AC250VRated Current: 18A(AC-1) 15A(AC-3)Coil Voltage: 220-240VRated Frequency: 50/60HzPin Number: 4Pin/5PinDegree Protection: IP55Number of working Cycles: 5E4Ambient temperature: T85/55This swap have the resultant function that derived from power-off and under voltage protection:1. Double Pole bring to an end 2. Brake function with one pole cut off3. These two variations could be mixed with overload defense change to realize below voltage and overload defense Widely utilized in mechanical device tools, large-scale strength tools, backyard kit above, belonging to the safety switch, the gadget won't activate after energy off unexpectedly, should press the golf green delivery button will flip on.