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SKU:
NLT1M00712
Ships for free in 2–4 business days.
Top-Post Knife Blade Battery Disconnect Switch 12V 24V 250A
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This top-post knife blade battery disconnect is rated for compatible 12V or 24V systems, with a listed 250A continuous and 750A momentary capacity.
Estimated delivery between
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Product Overview
This knife-style switch gives a vehicle, boat, RV, or machine a visible way to disconnect battery power during storage or service. It mounts at a compatible top post and is listed for 250A continuous and 750A momentary current.
The blade opens the battery connection without removing a cable. It mounts at a compatible top post and needs enough current capacity and physical clearance.
Key Features & Performance
- Lift-to-disconnect knife blade
- Direct top-post installation
- Brass current path for manual isolation
Common Uses
- Preventing storage drain
- Disconnecting power before maintenance
- Adding a visible battery isolation point
Technical Specifications
- Product Type: Top-post knife blade disconnect
- Voltage: 12V / 24V DC
- Continuous Rating: 250A listed
- Momentary Rating: 750A listed
- Terminal Type: Top post
- Operation: Manual blade
Installation & Fitment
- Verify post size and polarity
- Check clearance in both blade positions
- Clean post and clamp
- Tighten without damaging the battery
- Test cranking voltage drop and heat
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Measure the battery post, hood or cover clearance, cable orientation, and starting current. Side-post batteries require a different design.
Frequently Asked Questions
Q: Which post should it use? A: Many simple storage disconnects use the negative post, but follow the vehicle and switch instructions.
Q: Can it be opened while running? A: No. Charging-system voltage spikes may damage electronics.
Q: Will it fit under a tight hood? A: Measure first; the raised blade needs extra space.
Q: Why would it get warm during cranking? A: Heat indicates resistance from a loose, dirty, undersized, or overloaded connection.
Part Summary
keywords: top-post knife battery switch, 12V 24V 250A disconnect, storage battery isolator, brass battery cut-off, RV boat kill switch
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.