Current clamp is ergonomic design for control cabinets
Distributor, Conrad Electronic, has added the latest Voltcraft current clamp to its linecard. The VC-337 is designed with a slim pincer head, optimised for measurements in control cabinets with terminal blocks and very narrow cable spacing.
Users are able to grip individual wires between the cable duct and terminal blocks much more easily than with conventional clamps, says the company, and able to take measurements on dense wire installations in control cabinets.
It has a measuring gap of 5.5mm diameter, allowing it to measure wires in-situ rather than be pulled out of the cable duct, as is the case when using conventional current clamps; the VC-337 can be positioned at an angle and is able to grip between adjacent wires. “Therefore, the VC-337 is suitable for cables with a cross section of up to 6 mm²,” says Harald Lehner from Voltcraft at Conrad Electronic.
He adds: “The VC-337 current measuring clamp offers the best compromise between the size of the clamp jaw and the safety class with the appropriate insulation. In practice, a proven beneficial feature is the clamp open-limiting stop which prevents cables from getting too deep into the clamp’s mouth and being crushed as a result. Thanks to the two-component housing, the handy measuring device is also suitable for harsh environments, and the rubberised housing shell ensures a secure and comfortable grip.”
The Voltcraft VC-337 has 4,000 counts to comply with the measurement categories CAT II 600V and CAT III 300V. It is suitable for non-contact measurement of direct and alternating currents from 0.001 to 40A.
The true-RMS measurement of the current clamp allows the exact measurement of asymmetrical voltages and currents that deviate from the basic shape of the sine wave. Asymmetrical voltages most commonly occur in power regulators such as dimmers, speed controllers, switched-mode regulators, pulsed chargers or electronic controls. Conventional average value measuring devices sometimes show very large measuring errors in such special measuring tasks.
As part of quality assurance, all Voltcraft measuring devices are calibrated in production according to factory standards.
