Grayston FIA Approved Master Cut-Off / Isolator Switch

FIA Approved | Track Legal Safety | Heavy-Duty 200A Rated

Grayston FIA Approved Master Cut-Off / Isolator Switch

This is the real deal. A professional-grade, FIA-certified master battery isolator switch — essential for motorsport and a smart upgrade for serious road/race builds. Designed to safely cut all electrical power and meet MSA & FIA regs, complete with integrated surge resistor for alternator protection.

Key Features

• FIA Approved – fully compliant for motorsport scrutineering

• Heavy-duty – 1400A max load / 200A continuous rated

• Integrated surge resistor – protects electrical systems when disconnecting under load

• Wide temp range – durable from -40°C to +80°C

• Easy fitment – 40mm panel mount hole

• Compatible with 12V–24V systems

• Ideal for track, rally, hill climb, drift, off-road, classic or road use

Why You Need It:

Fitting a proper kill switch isn’t just about safety — it’s a requirement in competitive motorsport. This high-spec isolator ensures full shutdown of the electrical system in the event of an emergency, or simply for added peace of mind.