The model 250A-MET is an auto ranging voltage monitor designed to protect 3-phase motors regardless of size. It is used on 190 - 480 VAC, 50/60Hz motors to protect the motors from damage caused by low voltage, voltage unbalance, single phasing and reverse phasing.

• Low voltage trip
• Bicolor LED indicator light is green in normal conditions and red during trip conditions
• Microcontroller-based provides better accuracy and higher reliability than analog designs
• Transient protected to meet IEC 1000-4-5:1995 Standards and stand up under tougher conditions
• DPDT relay provides two 10A at 240 VAC general purpose relays to switch heavier loads
• Detects single-phase condition regardless of regenerated voltages
• Manual - 2-300 sec variable restart delay
• 5 YR warranty
• High voltage trip
• Single-phase trip
• Reverse-phase trip
• Fixed 6 PCT voltage unbalance trip
• DPDT relay output
• Separate indicators for power-up restart delay, reverse-phase trip, good voltage/relay energized, unbalance/single-phase trip, high/low voltage trip
• Adjustable restart delay can be set at manual position or anywhere between 2-300 seconds
• Universal range from 190-480 VAC, 50/60 HZ provides the versatility needed to handle global applications

Standards: UL 508 Listed in File Number E68520, cUL Listed, CSA Certified 22.2 Number 14 in File Number 46510, CE Marked