Choosing an Electrical Switch
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Contact Blocks for Manual Switches
Make or break an electrical circuit. These contact blocks mount to manual switches and transmit an electrical signal when the switch actuator is engaged. You can stack multiple blocks, so a single switch can control several circuits. This is helpful in setups that require multiple systems to turn on or off at the same time. For example, the switch on a conveyor line could turn off the conveyor and turn on a diverter and alarm.
| No. of Circuits Controlled | Switch Starting Position | No. of Terminals | Industry Designation | Wire Connection Type | Environmental Rating | For Switch Manufacturer Series | Each | |
Schneider Electric | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 | 1 Off (Normally Open) | 2 | SPST-NO | Screw Terminals | IP20 | 9001K, 9001SK | 9235K97 | 000000 |
| 1 | 1 On (Normally Closed) | 2 | SPST-NC | Screw Terminals | IP20 | 9001K, 9001SK | 9235K98 | 00000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | 4 | DPST-1NO/1NC | Screw Terminals | IP20 | 9001K, 9001SK | 9235K99 | 00000 |
Square D | ||||||||
| 1 | 1 Off (Normally Open) and 1 On (Normally Closed) | 2 | SPDT | Screw Terminals | __ | 9001K | 8230K611 | 00000 |
30 mm Emergency Stop Panel-Mount Push-Button Switches
Immediately cut power with a single push. These switches are rated for protection from low-pressure streams of water and oil/coolant spraying. They have positive force contacts that will open a circuit when actuated even if a spring fails or the contacts stick. Mount them in a standard panel cutout.
Illuminated switches are visible in low light. They include a bulb. If wiring the switch and the bulb to the same circuit, the circuit voltage must not exceed bulb voltage.
Turn twist switches back on by twisting the button and pull switches by pulling it. Add an optional lockout (sold separately) on either kind to cover the button and prevent changes to its position.
Additional contact blocks (sold separately) can be added to control more circuits or replace the included contact blocks.
| No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Actuator Color | Switching Current @ Voltage | Max. Voltage | Dia. | Dp. Behind Panel | For Max. No. of Contact Blocks | Choose a Bulb Voltage | Each | |
Metal Base with Screw Terminals | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pull Reset | |||||||||||||
| 1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | Red | 6 A @ 120 V AC, 2.5 A @ 24 V DC | 600V AC 600V DC | 1 5/8" | 2 3/4" | 4 | __ | 9235K2 | 0000000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | Red | 6 A @ 120 V AC, 2.5 A @ 24 V DC | 600V AC 600V DC | 1 5/8" | 2 3/4" | 4 | __ | 9235K32 | 000000 |
| 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | Red | 6 A @ 120 V AC, 2.5 A @ 24 V DC | 600V AC 600V DC | 1 5/8" | 2 3/4" | 4 | __ | 9235K3 | 000000 |
Metal Base with Screw Terminals—Illuminated | |||||||||||||
Pull Reset | |||||||||||||
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 6 | DPST-1NO/1NC | Red | 6 A @ 120 V AC, 2.5 A @ 24 V DC | 600V AC 600V DC | 1 5/8" | __ | 4 | 9235K49 | 000000 | |
| No. of Circuits Controlled | Switch Starting Position | No. of Terminals | Industry Designation | Environmental Rating | Specifications Met | Each | |
For 1 5/8" Diameter Switches | |||||||
|---|---|---|---|---|---|---|---|
| 1 | 1 Off (Normally Open) | 2 | SPST-NO | IP20 | CSA Certified, IEC 60947-1, IEC 60947-5-1, EN 60947-5-1, EN 60947-1, EN 60947-5-4, IEC 60947-5-4 | 9235K97 | 000000 |
| 1 | 1 On (Normally Closed) | 2 | SPST-NC | IP20 | CSA Certified, IEC 60947-1, IEC 60947-5-1, EN 60947-5-1, EN 60947-1, EN 60947-5-4, IEC 60947-5-4 | 9235K98 | 00000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | 4 | DPST-1NO/1NC | IP20 | CSA Certified, IEC 60947-1, IEC 60947-5-1, EN 60947-5-1, EN 60947-1, EN 60947-5-4, IEC 60947-5-4 | 9235K99 | 00000 |
Bulb | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Voltage | Shape Number | Diameter | Overall Length | Bulb Material | Color | Light Technology | Rated Life, hrs. | Each | |
For 1 5/8" Diameter Switches | |||||||||
For Switches with 24V AC/24V DC Bulb | |||||||||
| 24V AC, 24V DC | T3 1/4 | 13/32" | 1 3/16" | Glass | Clear | Incandescent | 15,000 | 9235K331 | 000000 |
For Switches with 120V AC Bulb | |||||||||
| 120V AC, 120V DC | T2 1/2 | 5/16" | 1 3/16" | Glass | Clear | Incandescent | 10,000 | 9235K332 | 00000 |