Progress Bar

Skip to main content


Top Post Knife-Blade Style Battery Isolator Switch 250A

Top Post Knife-Blade Style Battery Isolator Switch 250A

  • CAT.NO: SF2243
In-Store Only
Save $11.56

Bulk Pricing

Qty 1 - 3

$17.34 / Unit

Qty 4 - 9

$17.34 / Unit

Qty 10 +

$17.34 / Unit

Deliver to

Add postcode for delivery availability


Choose a store for stock availability
Top Post Knife-Blade Style Battery Isolator Switch 250A
This handy isolator switch can serve many purposes. Firstly, it can help avoid battery drain on an idle vehicle or boat that is in storage or only gets occasional use. It can help discourage theft, and also provides an easy way to disconnect power to prevent shorts and fires when you are working on the electrical system. The switch fits directly over the battery’s negative post, and has a knife-blade that enables you to disconnect power without any tools. Suits either 12V or 24V systems and is rated to handle 250A continuously and a cranking current up to 750A. 

Warning: This switch is only to be assembled on top of the NEGATIVE post of battery, under NO circumstances is this to be connected to POSITIVE post of battery.

- 250A
- 12/24V
- 750A cranking
- 4-6AWG Cable Size
Current DC Scale

Scale max

250 A

Product Dimensions


95 mm


50 mm


67 mm


230 g

Packaged Dimensions

Packaged Volume

1.035 l

Packaged Weight

0.256 kg

Packaged Type

Blister Pack - Single

Packaged Length

18 cm

Packaged Width

11.5 cm

Packaged Height

5 cm

Voltage DC Scale

Scale min

12 V

Scale max

24 V