Choosing an Electrical Switch
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Hinge-Actuated Safety Switches
Replace access door hinges with these switches; they actuate when the door opens at least 4°. Also known as interlock switches, they ensure the safety of personnel by automatically shutting off power to machinery when an access door opens. All have positive-force, normally-closed contacts that will open a circuit when the switch is actuated even if a spring fails or the contacts stick. In addition to access doors, these switches can also be used on machine guards constructed from aluminum T-slotted framing. They’re rated IP65 for protection from washdowns.
For technical drawings and 3-D models, click on a part number.
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No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Switching Current @ Voltage | Wire Connection Type | Conduit Thread Size | Ht. | Wd. | Dp. | Each | |
3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Springs Back (Momentary) | 6 | 3PST-1NO/2NC | 2 A @ 250 V AC | Screw Terminals | M20 | 3.62" | 4.39" | 1.42" | 0000000 | 0000000 |