Sonel MZC-304 F Installationstester

The extra small and handy loop impedance tester MZC-304 F from Sonel is designed for loop measurements of ZL-PE, ZL-N, and ZL-L in 230/400V networks. The test current varies depending on the network voltage between 7.6 A and a maximum of 13.3 A. Measurement of the impedance ZL-PE is possible even without tripping the RCD. Tests can be conducted using measurement leads or the handy UNI protective contact adapter. With extensive measuring accessories, measurements can also be performed in 3-phase networks. Additional measurements such as AC voltage, frequency, or resistance of the protective conductor can be wirelessly transmitted and analyzed on a PC via the OR-1 adapter. The device is intended for personnel conducting measurements in single and multi-family homes, offices, industrial facilities, and all other locations with a low-voltage system. Furthermore, the measuring device is designed for maintenance personnel in facilities where short-circuit currents reach 4.4 kA (measurements according to EN 61557). The MZC-304F is also the perfect tool for testing circuits where an additional protective device in the form of residual current circuit breakers is used.