Battery Doctor 20128 12V 250A Side Mount Battery Disconnect Knife Switch
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Battery Doctor 20128 1-position side-mount battery disconnect (knife) switch combines robust electrical capacity with simple operation. Rated for 12 Volts and 250 A continuous, this panel-mount knife switch features bolt terminal wire connections, a gold finish actuator and a lift-to-disconnect mechanism that quickly cuts battery power without tools. Ideal for GM-type side terminal batteries and general automotive battery isolation, it prevents shorts and fires during electrical work, discourages theft and eliminates battery drain on idle batteries. Key physical specs: overall length ~3.75 in, overall width ~3.25 in and overall depth ~1.5 in (product dimensions vary slightly by listing). Mounting type is panel-mount; hole diameter for mounting is 3/8 in. Operation mode supports OFF-NONE-ON (knife-type disconnect). Includes the following technical attributes consolidated from manufacturer and marketplace data: Operating Voltage 12 Volts; Amperage 250 A; Contact Type: Normally Open; Switch Type: Kill Switch; Connectivity Protocol: X-10 (as listed); Unit Count: 1.0 (pack/box listings vary). Made in USA (manufacturer listing). Compatible with side terminal GM-style batteries; OEM / Mfg Part Number: 20128.
Specifications:
| Materials & Construction | |
| Color | Gold |
| Hole Diameter | 3/8 in |
| Overall Depth | 1.5in |
| Product Details | |
| Actuator Type | Disconnect |
| Amperage | 250 A |
| Connectivity Protocol | X-10 |
| Contact Type | Normally Open |
| Global Trade Identification Number | 00010054201285 |
| Item model number | 20128 |
| Mounting Type | Panel Mount |
| Number Of Connections | 2 |
| Number of Items | 6 |
| Operating Voltage | 12 Volts |
| Operation Mode | OFF-NONE-ON |
| Sequence | Battery Knife Switch |
| Switch Type | Kill Switch |
| Unit Count | 1.0 Count |
| Voltage | 12v V |
| Wire Connection Type | Bolt Terminals |
| Sizing & Dimensions | |
| Height | 1.5 inches |
| Length | 7.0 inches |
| Product Dimensions | 5.9 x 4.2 x 1.5 inches |
| Weight | 0.55 pounds |
| Width | 4.5 inches |
