MTE Corp. Introduces dV Sentry Three-in-One Motor Protection Filter

MTE Corporation has announced the introduction of its new best-in-class dV Sentry motor protection filter.

Using a dV/dt filter helps protect AC motors from the destructive effects of long lead voltages that can damage variable frequency drives (VFDs), cables, and motors. The 380V to 600V dV Sentry is the first dV/dt filter on the market to offer comprehensive three-in-one protection for VFDs and motors against peak voltage, high rise times and now, common mode voltage reduction. The dV Sentry is well suited for the demands of industrial equipment including HVAC, water/wastewater and irrigation.

In the past, traditional dV/dt filters only protected against power distortion created over long lead voltage lengths between VFDs and motors. Now, thanks to MTE’s patented Triple Defense Core technology, protection against long lead power distortion, voltage spikes and common mode voltage can be achieved in one system. Through MTE’s unique design, the dV Sentry has been proven to reduce common mode voltage by over 50 percent. This achievement – an industry first in a dV/dt filter – significantly reduces damage to motor bearings, motor insulation and unexpected ground fault trips and erratic behavior of VFDs and Programmable Logic Controllers (PLCs).

Designed for operations in harsh environments, the dV Sentry operates from -40°C to 60°C.  The dV Sentry features a small compact design as well as lighter weight, facilitating easier installation. Operating at a low noise level (<65 db), the dV Sentry can work in virtually any environment.