LEM upgrades its current transducers for drives

摘要

LA 130-150 current transducers from LEM are PCB-mounted devices for use in motor drives, inverters, power supplies and general industrial applications. They measure nominal full-scale currents of 130 and 150 A rms. The LA 130-150 series measures DC, AC, and pulsed currents, providing an output in the form of a current signal proportional to the measured (primary) current. Two conversion ranges - a factor of 1000 or 2000 - are offered, with two mounting styles; the transducers can be supplied with an open aperture through which the current carrying the primary current is routed or ready-fitted with a primary conductor that will connect direct to the host PCB. Within the 33.5 × 37 × 16mm outline, the conductor aperture is 13.5 × 10 mm. In form, footprint and function the LA 130-150 series is backward-compatible with LEM's prior-generation devices.