The Sonel MZC-306 is a professional loop impedance and short-circuit current tester designed for UK electricians, inspection engineers and testing technicians carrying out electrical installation verification and fault protection testing.
Engineered for accuracy and speed, the MZC-306 measures loop impedance (ZL-PE, ZL-N) and prospective short-circuit current (PSC) in both low and high current circuits, helping ensure compliance with BS 7671 standards. Its high measurement current allows precise results even in complex systems with RCDs or RCBOs.
How does the MZC-306 make testing easier for electricians?
Compact, fast and built for field use, the MZC-306 streamlines loop impedance measurement with automatic test recognition, backlit display and built-in memory for results logging. It also offers phase-to-phase testing for three-phase systems, making it an essential tool for professionals working on commercial, industrial and residential installations.
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.
