Manual Reset (MR) URD Fault Indicators
Manual Reset (MR) Fault Indicators employ a magnetic principle using two magnetic elements. One is the yoke which is demagnetized by the fault current, allowing the other to act on the display
and cause a reflective red target to show. The target is held in place magnetically until the MR is reset using the Manual Reset Tool.
The MR is secured to the line by means of overcenter toggle clamps and may be applied or removed by a hot stick. MR Fault Indicators have a response time of 12 ms at the trip rating.
The display has a red reflective target area of 3.3 square centimeters.
Both MR and MB fault indicators have hermetically-sealed ultrasonically welded housings and stainless-steel, vinyl-coated clamping mechanisms that make them suitable
for use in harsh, submersed, and corrosive environments.
a reset tool in a sturdy, lightweight carrying case.
for underground applications.
the clamping diameter or range when ordering)