Choosing an Electrical Switch
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Tilt Switches
Often used as position indicators, pump level controls, and machine limit switches, these switches actuate when tilted to a certain angle. They mount horizontally and activate when tilted downward, and deactivate when tilted up. Differential angle is the total angle from the point of activation to the point of deactivation. All combine electromechanical and solid state technologies for reliability and long life.
For technical drawings and 3-D models, click on a part number.
| No. of Circuits Controlled | Switch Starting Position | Industry Designation | Switching Current @ Voltage | Max. Voltage | Differential Angle | No. of Wire Leads | Dia. | Lg. | Ht. | Dp. | Housing Material | Environmental Rating | Each | ||
With Ring Terminals | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 1 | 1 Off (Normally Open) | SPST-NO | 0.1 A @ 120 V AC, 0.25 A @ 24 V DC | 60V DC/120V AC | 15° | 2 | 0.53" | 1.88" | __ | __ | Plastic | NEMA 4, IP67 | 000000 | 000000 |
With Spade Terminals | |||||||||||||||
| A | 1 | 1 Off (Normally Open) | SPST-NO | 2.5 A @ 120 V AC | 280V AC | 15° | 2 | 0.53" | 1.88" | __ | __ | Plastic | NEMA 4, IP67 | 000000 | 00000 |
With Wire Leads | |||||||||||||||
| B | 1 | 1 Off (Normally Open) | SPST-NO | 20 A @ 24 V DC | 40V DC | 10° | 2 | 0.75" | 2" | __ | __ | Plastic | NEMA 4, IP67 | 000000 | 00000 |
| C | 1 | 1 Off (Normally Open) | SPST-NO | 10 A @ 12 V DC | 18V DC | 30° | 2 | __ | 1.22" | 1.07" | 0.8" | Plastic | NEMA 4, IP67 | 000000 | 00000 |
| D | 1 | 1 Off (Normally Open) | SPST-NO | 15 A @ 120 V AC | 120V AC | 15° | 3 | __ | 3" | 1.5" | 2" | Plastic | NEMA 4, IP67 | 000000 | 000000 |
| D | 1 | 1 Off (Normally Open) | SPST-NO | 15 A @ 220 V AC | 220V AC | 15° | 3 | __ | 3" | 1.5" | 2" | Plastic | NEMA 4, IP67 | 000000 | 000000 |
| E | 1 | 1 On (Normally Closed) | SPST-NC | 2 A @ 120 V AC | 220V AC | 25° | 2 | __ | 1.5" | 0.8" | 1.3" | Plastic | NEMA 4, IP67 | 000000 | 00000 |
| E | 1 | 1 On (Normally Closed) | SPST-NC | 2 A @ 120 V AC | 220V AC | 40° | 2 | __ | 1.5" | 0.8" | 1.3" | Plastic | NEMA 4, IP67 | 000000 | 00000 |
Manual-Reset Safety Limit Switches
Prevent equipment from automatically restarting—these switches must be manually reset each time they're actuated. Pull the knob to reset. Positive-force contacts open the circuit when actuated, even if a spring fails or the contacts stick. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and elevators. All are rated IP67 for protection from washdowns and temporary submersion.
Style C switches have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.
For technical drawings and 3-D models, click on a part number.
Housing | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | Wire Connection Type | No. of Terminals | Lg. | Ht. | Dp. | Housing Material | Conduit Thread Size | Each | |
Plunger Actuator Style | |||||||||||||||||
| A | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | DPST-1NO/1NC | 10 A @ 240 V AC, 2.5 A @ 125 V DC | 250V DC 300V AC | -22° to 158° | 1" | Screw Terminals | 4 | 1.2" | 3.4" | 1.2" | Plastic | M20 | 0000000 | 000000 |
Roller Lever Actuator Style | |||||||||||||||||
| B | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | DPST-1NO/1NC | 10 A @ 240 V AC, 2.5 A @ 125 V DC | 250V DC 300V AC | -22° to 158° | 2.4" | Screw Terminals | 4 | 1.2" | 3.4" | 1.2" | Plastic | M20 | 0000000 | 00000 |
| C | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | DPST-1NO/1NC | 10 A @ 240 V AC, 2.5 A @ 125 V DC | 250V DC 300V AC | -22° to 158° | 2.1"-3.9" | Screw Terminals | 4 | 1.2" | 3.4" | 1.2" | Plastic | M20 | 0000000 | 00000 |