Microswitch for W-Series Long Hand Sealers and W-Series I-Bar Sealers This part is compatible with the following models: WN-500H / WN-500HC WN-650H / WN-650HC WN-750H / WN-750HC WN-7510H WN-1000H / WN-1000HC WN-1300H / WN-1300HC W-350I / W-350IC W-500I / W-500IC W-650I / W-650IC W-750I / W-750IC W-900IC / W-900IC.