Bussmann BP/BMS-1 Battery Disconnect Switch Kit Top Post Blue
Isolates top-post batteries with a blue disconnect switch kit that includes a 20 A fuse holder, ring terminals and stainless hardware
- Product colorBlue
- Disconnects battery power with a top-post switch kit
- Includes ATM-20 fuse for 20-amp circuit protection
- HHM fuse holder secures the fuse reliably
- Ring terminals and stainless hardware ensure solid connections
- Blue colour identifies the disconnect at a glance
Battery Disconnect Switch Kit
This battery disconnect switch kit provides a simple way to isolate a top-post automotive battery from the electrical system. It includes a fuse holder, a 20-amp fuse, ring terminals and stainless steel mounting hardware. The kit is designed for vehicle owners who want to prevent parasitic drain during storage or add a theft-deterrent cutoff.
Capacity and headroom
The included ATM-20 fuse sets the continuous current limit at 20 amps, suitable for maintaining memory circuits or low-draw accessories while the main load is disconnected. It will not support high-current starting or winching loads, so the switch must remain off during engine cranking or heavy accessory use.
Thermals noise and power draw
The mechanical switch and fuse holder operate silently and generate no measurable heat under normal low-current conditions. No power is consumed by the device itself when the circuit is open, and the stainless steel hardware resists corrosion in engine-bay environments.
How it compares
Measured against everything we stock in Jump Starters, Chargers & Power Packs, at today’s prices. Recalculated every night.
- Price $30.99
- Pricier than about 80% of the 1,744 comparable items (median $14.99).
Specifications
| Product | |
|---|---|
| Brand name | EATON BUSSMANN |
| Product color | Blue |
Questions about this item
Will the BP/BMS-1 switch kit fit the top-post battery I already have in my vehicle?
Yes, the kit is designed for top-post batteries and includes ring terminals with a stainless-steel bolt and wing nut for that connection.
How can I verify the BP/BMS-1 is working correctly after I install it?
Turn the switch to the off position and confirm that the vehicle's electrical systems are completely isolated; turning it back on should restore power immediately.
What components come with the BP/BMS-1 kit and what must I supply myself?
The box includes the disconnect switch, an HHM fuse holder with an ATM-20 fuse, ring terminals, a stainless-steel bolt and a wing nut; you only need basic hand tools for installation.
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