Choosing an Electrical Switch
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Battery Knob Switches
Alternate between two batteries without interrupting power. These switches are often used in marine applications.
For technical drawings and 3-D models, click on a part number.
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Actuator Material | No. of Terminals | Max. Voltage  | Max. Continuous Current | Terminal Size | For Max. Wire Ga. | No. of | Dia. | Ht. | Wd. | Dp. | Environment | Environmental Rating | Specifications Met | Each | |
With Stud Terminals | |||||||||||||||
For 3 5/8" Cutout Dia. | |||||||||||||||
| Plastic | 3 | 32V DC | 350 A @ 32 V DC | 3/8" | 4/0 | 4 | 1/4" | 3 7/8" | 3 7/8" | 3 1/8" | Washdown | IP66 | UL Listed, UL Marine Listed, CE Marked, ISO 8846, SAE J1171 | 00000000 | 000000 |
Stud-Terminal Relays
These relays are suitable for DC-powered equipment such as forklifts, floor scrubbers, and trucks. They are rated for continuous operation for cycles that run longer than 30 seconds.
3-terminal relays require the same input and switching voltage. 4- and 6-terminal relays allow different input and switching voltages.
For technical drawings and 3-D models, click on a part number.
| Number of Terminals | Input Voltage | Control Power, VA | Full Load Switching Current @ Voltage | Ht. | Wd. | Dp. | Stud Thread Size | Features | Each | |
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 12V DC | 12 | 100 A @ 12 V DC | 3.6" | 3.1" | 2.2" | 5/16"-24 | __ | 0000000 | 000000 |
| 4 | 12V DC | 9 | 80 A @ 12 V DC | 2.5" | 3.5" | 2.4" | 5/16"-24 | __ | 0000000 | 00000 |
| 4 | 12V DC | 9 | 80 A @ 12 V DC | 2.5" | 3.5" | 2.4" | 5/16"-24 | Grounding Cord with Ring Terminal | 0000000 | 00000 |
| 4 | 12V DC | 12 | 100 A @ 12 V DC | 3.6" | 3.1" | 2.2" | 5/16"-24 | __ | 0000000 | 00000 |
| 4 | 24V DC | 9 | 50 A @ 24 V DC | 2.5" | 3.5" | 2.4" | 5/16"-24 | __ | 0000000 | 00000 |
| 4 | 24V DC | 12 | 100 A @ 24 V DC | 3.6" | 3.1" | 2.2" | 5/16"-24 | __ | 0000000 | 00000 |
| 4 | 36V DC | 9 | 50 A @ 36 V DC | 2.5" | 3.5" | 2.4" | 5/16"-24 | __ | 0000000 | 00000 |
| 4 | 36V DC | 12 | 100 A @ 36 V DC | 3.6" | 3.1" | 2.2" | 5/16"-24 | __ | 0000000 | 00000 |
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | ||||||||||
| 6 | 12V DC | 12 | 100 A @ 12 V DC | 4.7" | 3.1" | 2.2" | 5/16"-24 | __ | 0000000 | 00000 |
| 6 | 24V DC | 12 | 100 A @ 24 V DC | 4.7" | 3.1" | 2.2" | 5/16"-24 | __ | 0000000 | 000000 |
| 6 | 36V DC | 12 | 100 A @ 36 V DC | 4.7" | 3.1" | 2.2" | 5/16"-24 | __ | 0000000 | 00000 |
Water-Resistant Stud-Terminal Relays
Sealed to keep out water, these relays are often used for DC-powered equipment such as forklifts, floor scrubbers, and trucks. They are rated for continuous operation for cycles that run longer than 30 seconds.
For technical drawings and 3-D models, click on a part number.
| Number of Terminals | Input Voltage | Control Power, VA | Full Load Switching Current @ Voltage | Ht. | Wd. | Dp. | Stud Thread Size | Each | |
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 4 | 12V DC | 8 | 200 A @ 12 V DC | 3.7" | 3.3" | 2.9" | 5/16"-24 | 0000000 | 000000 |
| 4 | 12V DC | 8.1 | 100 A @ 12 V DC | 2.9" | 3.3" | 2.1" | 5/16"-24 | 0000000 | 00000 |
| 4 | 24V DC | 8.1 | 100 A @ 24 V DC | 2.9" | 3.3" | 2.1" | 5/16"-24 | 0000000 | 00000 |
| 4 | 36V DC | 8.1 | 100 A @ 36 V DC | 2.9" | 3.3" | 2.1" | 5/16"-24 | 0000000 | 00000 |
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | |||||||||
| 6 | 12V DC | 12 | 100 A @ 12 V DC | 4.6" | 3.3" | 2.9" | 5/16"-24 | 0000000 | 000000 |
| 6 | 24V DC | 12 | 100 A @ 24 V DC | 4.6" | 3.3" | 2.9" | 5/16"-24 | 0000000 | 000000 |