This Top-Post Knife Blade Master Switch is a battery disconnect switch used to isolate and secure the electrical system by physically cutting power from the battery.
Product Overview
This 12V / 24V Top-Post Knife Blade Master Switch provides a simple and effective way to manage your vehicle's power supply and prevent parasitic drain. The high-capacity battery disconnect switch allows for rapid isolation of the battery to improve safety and security during periods of non-use. This master switch is an essential tool for vehicle owners looking to protect their battery health and prevent unauthorized operation.
Key Features & Performance
Heavy-duty brass construction for excellent conductivity and corrosion resistance
Knife blade design for quick and easy manual operation
Supports both 12V and 24V DC electrical systems
Rated for 250A continuous and 750A momentary surge at 12V
Direct mounting to the battery top post for simple installation
Common Uses
Stopping parasitic battery drain during long-term vehicle storage
Serving as an anti-theft device by disabling the vehicle's electrical system
Ensuring safety during maintenance by completely isolating the power source
Technical Specifications
Part Type: Battery Disconnect Switch
Voltage: 12V / 24V
Rated Current: 250A
Max Current: 750A
Terminal Type: Top Post
Frequently Asked Questions
Q: Which battery terminal should this switch be installed on? A: It is recommended to install the knife blade master switch on the negative battery post to safely disconnect the ground circuit.
Q: Does this switch require any tools for daily operation? A: No, once installed, you can simply lift or lower the knife blade lever by hand to disconnect or reconnect the power.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.
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