Simple and ergonomic short circuit loop impedance meter from Sonel include the handheld Sonel 20E and Sonel 304F.
The Sonel MZC-306 can measure short circuit impedance with a resolution of 0.01 ohm on electrical networks with an operating voltage of 110/190V, 115/200V, 127/220V, 220/380V, 230/400V, 240/415V, 290/500V, 400/690V (operating range 100V to 750V)
The Sonel MZC-306R variant is Network Rail PADS approved for use on their 650V electrification system under the Network Rail Certificate of Acceptance PA05/07453 and catalogue number 0092/010414. The Sonel MZC-306R measures Ik sometimes called PSCC (Prospective Short Circuit Current).
Sonel loop meters meet the requirements of EN 61010-1, EN 61010-031, EN 61326, EN 61557, HD 60364-6, HD 60364-4-41 and EN 04700.
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The Sonel MZC-304F is dedicated to performing measurements in single and multi-family buildings, office buildings, industrial plants and any other places equipped with low voltage electrical systems. In addition, the meter is intended for maintenance personnel working on objects, where fault currents reach 4.4kA (measured according to EN 61557). MZC-304F is also a great tool for checking circuits additionally protected by residual current devices.
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The small Sonel MZC-20E meter allows for precise measurement of short circuit loop impedance in networks of different voltage ratings. With the use of this instrument, it is possible to test network voltage up to 440V. The device is especially useful for installers and measuring engineers providing services in single- and multi-family buildings, office buildings, industrial plants and other buildings and facilities equipped with low-voltage electrical installations.
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The Sonel MZC-306R meter is fully Network Rail PADS approved under the Network Rail Certificate of Acceptance PA05/07453 and catalogue number 0092/010414. Approved for use in testing on the Network Rail 650V electrical system Signal Power feeders to test the fault loop impedance measurements. The Sonel MZC-306R measures Ik sometimes called PSCC (Prospective Short Circuit Current).
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The Sonel MZC-306 enables measurements in various types of networks up to 750V AC. The meter is invaluable for engineers who work on a variety of electrical work in low-voltage areas, such as solar, renewables, homes and buildings, public facilities, workshops and factories. The resolution of the measurement result is 0.01 Ω and the meter can also perform measurements in networks protected by RCD circuit breakers. The casing of the MZC-306 meter is IP54 rated, which provides a resistance to mechanical damage with the cover of the device also being able to be set at several positions to enable easy and comfortable transport and use of the meter.
