Martindale FD500 Analogue Circuit Breaker and Fuse Finder
What is the Martindale FD500 Analogue Circuit Breaker & Fuse Finder?
The Martindale FD500 is a circuit breaker and fuse finder kit designed to help professional electricians quickly identify which breaker or fuse controls a specific circuit, without trial and error. It’s also ideal for tracing wiring between sockets on the same circuit.
The kit includes a mains-powered transmitter (FD500/T) that emits a consistent analogue signal and a sensitivity-adjustable receiver (FD500/R) that pinpoints the correct breaker with audible and visual alerts. The thumb-wheel control ensures precise signal tuning, especially useful in busy or complex distribution boards.
Need to Speed Up Circuit Identification?
The Martindale FD500 helps eliminate guesswork from circuit tracing and fuse identification.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
Why choose Instrotech for your electrical test equipment?
With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:
Free UK shipping on all orders
Access to our knowledgeable technical support team
Available calibration services to maintain safety compliance
A 90-day money-back guarantee for complete peace of mind
We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.
