{"product_id":"liftmaster-switch-pneumatic-exterior-plastic-case","title":"50-101-2 Exterior Air Switch, SPDT, Plastic Case","description":"\u003cp class=\"richp\"\u003eIndividual Pneumatic Comps\u003c\/p\u003e\u003cp class=\"richp\"\u003eExterior 3-wire air switch, (SPDT, plastic housing).\u003c\/p\u003e\u003cp class=\"richp\"\u003eA sensing edge should be used on every door for the protection of pedestrians and vehicles. Depending on the type of edge and type of control wiring of the operator with which it is used, the function of the edge will vary.\u003c\/p\u003e\u003cp class=\"richp\"\u003e\u003cb\u003eStandard Edge:\u003c\/b\u003e\u003c\/p\u003e\u003cp class=\"richp\"\u003eA standard 2-wire edge will cause a door to reverse when it meets an obstruction while closing if the operator has type B2, C2, S2, T, T1 or TS control wiring.\u003c\/p\u003e\u003cp class=\"richp\"\u003e\u003cb\u003eFailsafe Edge:\u003c\/b\u003e\u003c\/p\u003e\u003cp class=\"richp\"\u003eA failsafe edge (or self monitoring edge) requires either a 3- or 4-wire connection and will not only cause a door to reverse while closing but will also render the door inoperable if the edge is not installed or if it becomes damaged after installation. A failsafe electric edge requires an operator with type F2 wiring or the use of a CPS IIoption board. The infrared link-edge is inherently failsafe and requires only type B2, C2, S2, T, T1 or TS control wiring.\u003c\/p\u003e","brand":"CHAMBERLAIN","offers":[{"title":"Default Title","offer_id":46371837575306,"sku":"50-101-2","price":58.07,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.rsoperators.com\/products\/liftmaster-switch-pneumatic-exterior-plastic-case","provider":"R\u0026S Automation, Inc.","version":"1.0","type":"link"}