Switch Starting Position Switch Starting Position |
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Housing Material Housing Material |
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Industry Designation Industry Designation |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Choosing an Electrical Switch
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Magnetically Actuated Switches
These switches actuate when a magnet comes within sensing distance, and reset when the magnet moves away. They’re often used to detect when a door or window opens. Mount the switch in a stationary position, such as a door frame, and mount the magnet to a movable object, such as the door. They do not include a safety relay and cannot be used with safety-guard doors found on machinery.
NEMA 4X rated switches are protected from corrosion and washdowns. These switches are also rated IP67 for protection from temporary submersion.
For technical drawings and 3-D models, click on a part number.
Magnetically Actuated Switches | |||||||||||||||||
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Mounting Thread | Replacement Magnets | ||||||||||||||||
| No. of Circuits Controlled | Switch Starting Position | Industry Designation | Switching Current @ Voltage | Max. Voltage | Max. Sensing Distance | No. of Wire Leads | Dia. | Lg. | Wd. | Ht. | Size | Pitch, mm | Each | Each | |||
Plastic Housing with Wire Leads—NEMA 4X, IP67 | |||||||||||||||||
| A | 1 | 1 Off (Normally Open) | SPST-NO | 830 mA @ 120 V AC | 250V AC | 0.8" | 2 | __ | 3.18" | 0.79" | 0.59" | __ | __ | 00000000 | 0000000 | 00000000 | 000000 |
| B | 1 | 1 Off (Normally Open) | SPST-NO | 80 mA @ 120 V AC | 250V AC | 0.4" | 2 | __ | 1.13" | 0.71" | 0.25" | __ | __ | 00000000 | 000000 | 00000000 | 00000 |
| D | 1 | 1 Off (Normally Open) | SPST-NO | 80 mA @ 120 V AC | 250V AC | 0.1" | 2 | 0.24" | 1.12" | __ | __ | __ | __ | 00000000 | 000000 | 00000000 | 00000 |
Stainless Steel Housing with Wire Leads—NEMA 4X, IP67 | |||||||||||||||||
| C | 1 | 1 Off (Normally Open) | SPST-NO | 80 mA @ 120 V AC | 250V AC | 0.6" | 2 | 0.31" | 1.26" | __ | __ | M8 | 1 | 00000000 | 000000 | 00000000 | 00000 |
Tamper-Resistant Magnetically Actuated Switches
Prevent unauthorized use—these switches require coded magnets (sold separately) to actuate, and cannot be bypassed using ordinary magnets. They actuate when a magnet comes within sensing distance, and reset when the magnet moves away. Mount the switch in a stationary position, such as a door frame, and mount the magnet to a movable object, such as the door. They’re often used to detect when a door or window opens, and can be used with movable machine guards. All are rated IP67 for protection from temporary submersion.
Coded magnets include tamper-resistant one-way screws for mounting. To remove screws, see one-way bits and drivers.
Safety relays are required in safety applications with switches that control two or three circuits.
For technical drawings and 3-D models, click on a part number.
Switches | Coded Magnets | |||||||||||||
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| No. of Circuits Controlled | Switch Starting Position | Industry Designation | Switching Current @ Voltage | Max. Voltage | Input Voltage | Max. Sensing Distance | Dia. | Lg. | Mounting Thread Size | Environmental Rating | Each | Each | ||
Plastic Housing with Wire Leads | ||||||||||||||
| 1 | 1 On (Normally Closed) | SPST-NC | 6.3 A @ 120 V AC | 250V AC | 24V DC | 0.2" | 1.2" | 3.1" | M30 | IP67 | 0000000 | 0000000 | 0000000 | 000000 |
Switches | Coded Magnets | Safety Relays | ||||||||||||||
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| No. of Circuits Controlled | Switch Starting Position | Industry Designation | Switching Current @ Voltage | Max. Voltage | Input Voltage | Max. Sensing Distance | Lg. | Wd. | Ht. | Environmental Rating | Each | Each | Each | |||
Plastic Housing with Wire Leads | ||||||||||||||||
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | DPST-1NO/1NC | 0.5 A @ 120 V AC/120 V DC | 120V DC 120V AC | 120V DC 120V AC | 0.2" | 3.5" | 1" | 0.5" | IP67 | 0000000 | 0000000 | 0000000 | 000000 | 0000000 | 0000000 |
| 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | 3PST-1NO/2NC | 10 mA @ 24 V DC | 24V DC | 24V DC | 0.2" | 3.5" | 1" | 0.5" | IP67 | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 000000 |