Choosing an Electrical Switch
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Battery Disconnect Switches
Stop battery drain and prevent the theft or unauthorized use of equipment by disconnecting batteries when not in use.
Knob, key, and T-handle actuators can be removed to limit access to the switch. Horizontal lever actuators are a good choice when space is tight, such as when you have a cover over your battery.
Use remote-mount switches to cut power to your battery from a distance. Run a battery cable from the battery to the switch. Dial actuator switches come with a remote rocker switch that installs into a panel.
Switches with a fused bypass maintain a trickle of current to accessories, such as radios and computers.
Switches with a wing nut accommodate lug terminals.
Switches with a lockout secure in the off position with a padlock (not included).
| Max. Continuous Current | For Terminal Polarity | Material | Lg. | Wd. | Ht. | Each | |
| 125 A @ 12 V DC | Negative | Brass | 3 1/2" | 1 1/2" | 1 1/2" | 0000000 | 000000 |
| Max. Continuous Current | For Terminal Polarity | Material | Lg. | Wd. | Ht. | Each | |
| 125 A @ 12 V DC | Negative | Brass | 3 1/2" | 1 1/2" | 1 1/2" | 0000000 | 000000 |
| Max. Continuous Current | Key Removal Position | Material | Ht. | Dia. | No. of Mount. Holes | Mount. Hole Dia. | Includes | Each | |
| 100 A @ 12 V DC | Off | Brass/Copper | 2 1/2" | 2 1/4" | 2 | 0.19" | Two Keys | 0000000 | 000000 |
| Max. Continuous Current | For Terminal Polarity | Material | Lg. | Wd. | Ht. | Each | |
| 250 A @ 12 V DC | Negative | Brass/Copper | 3 3/4" | 3 1/2" | 1 1/2" | 0000000 | 000000 |
| Max. Continuous Current | Material | Lg. | Wd. | Ht. | No. of Mount. Holes | Mount. Hole Dia. | Each | |
| 250 A @ 12 V DC | Brass/Copper | 4" | 3" | 2" | 1 | 0.25" | 0000000 | 000000 |
| Max. Continuous Current | For Terminal Polarity | Material | Lg. | Wd. | Ht. | Each | |
| 250 A @ 12 V DC | Negative | Brass/Copper | 3 3/4" | 3 1/4" | 1 1/2" | 0000000 | 000000 |
| Max. Continuous Current | For Terminal Polarity | Material | Lg. | Wd. | Ht. | Each | |
| 250 A @ 12 V DC | Negative | Brass/Copper | 4" | 3" | 2" | 0000000 | 000000 |
| Max. Continuous Current | For Terminal Polarity | Material | Lg. | Wd. | Ht. | Stud Thread Size  | Each | |
| 250 A @ 12 V DC | Negative | Brass/Copper | 4" | 3" | 2 1/4" | 5/16"-18 | 0000000 | 000000 |
| Max. Continuous Current | Material | Lg. | Wd. | Ht. | Dp. Behind Panel | For Panel Cutout Dia. | For Max. Panel Thick. | No. of Mount. Holes | Mount. Hole Dia. | Each | |
| 275 A @ 12 V DC | Brass | 2 3/4" | 2 3/4" | 4" | 15/16" | 13/16" | 0.11" | 4 | 0.19" | 00000000 | 0000000 |
| Max. Continuous Current | Material | Lg. | Wd. | Ht. | For Max. Padlock Shackle Dia. | No. of Mount. Holes | Mount. Hole Dia. | Each | |
| 500 A @ 12 V DC | Brass | 3 1/2" | 3 1/2" | 6 1/2" | 3/8" | 2 | 1.19" | 00000000 | 0000000 |
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 |