Snap-action thermal protector 3MP SELF-HOLD

metal

Recent history has seen a growing demand for a non-self resetting motor protection device to ensure a high level of safety. Sensata Technologies has developed the KLIXON® 3MP self-hold motor protector for both 120 & 250 Vac applications in a wide current range. The heart of the 3MP self hold consists of the pre-set Klixon® snap action bimetallic disc welded into a metal housing with integrated terminal. The housing is covered by the plate on which a heater can be welded to increase the current sensitivity of the device. A PTC pill is mounted on top of the metal housing by a clip to meet the requirements for self hold.The combination of a variety of standard terminal configurations and carefully select-ed materials provides easy handling and mounting. Customized terminal configura-tions are available on request. Wires includ-ing connectors can be automatically attached to the standard crimp terminals. Sensata Technologies supplies a range of standard leads configurations; customized solutions are available on request. In construction where the 3MP self hold device is contacting conductive parts of the motor assembly, Sensata Technologies can deliver the self hold devices with a Mylar™ insulation sleeve. Customized coding and coloring is an option on request. The operating principle of the 3MP self hold is both simple and effective. The protector is actuated by current passing through it and by the heat received from surrounding parts.