Stop Motor Failure - Cost Effective Universal Phase Loss Monitor

Wind, snow, &ice storms regularly create phase loss (single phasing) faults. Unless operating motors are disconnected quickly, their winding insulation will overheat and fail. Motors protected by the HLMU single phase monitor, can be disconnected in 0.2 seconds.

Unattended motors, compressors and pumps are prevented from restarting until acceptable phase voltages are restored. This protection reduces the need for expensive removal, rebuilding or replacement of the motor windings. How much does downtime and lost income cost your business? The HLMU series is not only motor protection, it is business loss protection.
Protects Motors, Pumps and Compressors Against:

• Phase Loss (Single Phasing) & Phase Reversal
• Undervoltage & Overvoltage & Unbalanced Voltages
• Under & Over Frequency
• Rapid Cycling (Short Cycling)

The HLMU is an exciting new universal design that will LEAN your inventory costs:

• Protects any size 3 phase motor, 1 to 1200Hp
• Universal operating voltage: 200 to 480 VAC, 50 or 60Hz
• DPDT Isolated 10A output relay contacts
• Restart delay for sensitive loads and random restarting
• Provides over, under, and voltage unbalance protection
• Will not allow motor starting with a fault present
• Fast surface mounting with one screw, or use DIN 3 rail adaptor
• Adjustable or fixed trip delay prevents nuisance tripping
• LED indicates relay status and time delays
• Compact 2 x 3 x 1.5 in encapsulated circuitry
  

Smallest DPDT Line Monitor Available:

Full 10 A rated isolated DPDT relay contacts eliminate the need for an external switching relay to provide relay status information to a distributed control system.

Bi-color LED reduces installation and troubleshooting time:

The most common problem encountered during installation of a line monitor is phase reversal. The HLMU includes an industry first, alternate flashing Red - Green positive indication off this incorrect wiring condition. Swapping any two line voltage wires fixes the problem and the installation is completed quickly.

Flexible Mounting Solutions:

Cost effective easy mount design - single screw back panel surface mounting maximizes speed of automated assembly techniques DIN 3 rail mounting using single screw approach with P1023-20 adaptor. The adaptor snaps onto the control panels DIN rail. The connection design support line voltage connections to upper wire race, control connection to the lower wire race.

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