The motor fault prevention solution
Dedicated mainly to processes integrating 3-phase motors, phase control relays enable in-time detection of 3-phase electrical network faults: single-phase operating mode or overheating caused by network faults. They indicate the need for maintenance and/or corrective operations before additional costs are incurred (production shutdown, motor repair or replacement, etc.). They also extend service life of 3-phase motors.

Functions

• Phase sequence
• Loss of one or more phases
• Unbalance level
  
• Voltage level between phases or
  between phases and neutral

Features and benefits

• Standard dimensions: compact and modular
  format 17.5 mm and 35 mm
• Optimization of number for reference:
  multivoltage from 3 x 208 VAC to 3 x 480 VAC
• Coverage of all requirements with mono to
  multifunction offer
• Wiring savings, self-powered
• Combination of phase and motor
  temperature functions
• Settings protection thanks to
  sealable cover
• Clear display of control state by LEDs
• True RMS value measurement (even on
  deformed sinusoidal waves)
• Adjustable time delay

Applications

• 3-phase motors
• Moving 3-phase machines and equipment
  (Traveling cranes and truck refrigeration units)
• Overhead cranes, winches
• Elevators and escalators
• Pumps
• Fans, air extractors
• Mining excavators and conveyors