• 11151 Amman, Jordan

Thermal Overload Relay – Series MTO and RT

  • Two versions, mini and industrial
  • Ratings from:
    • Mini from 0.11 – 14amps in 16 sizes
    • Industrial from 0.16 – 850amps
  • Ambient temperature compensating
  • Single phase preventing
  • Manual or Automatic resetting
  • Trip test indication
  • Selectable manual or automatic reset with or without stop feature (industrial only)
  • Direct contactor connecting or independent mounting
  • Separate trip and alarm contacts
  • Trip Class 10, 10a, 20 and 30
  • Accessories for industrial relays:
    • Remote electrical reset device
    • Terminal protection covers
    • Remote cable reset devices
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Electronic Overload Relay

Electronic overload relays have been designed primarily to protect electric motors and associated electrical circuits. These devices operate on the principle of monitoring the current in a motor starter circuit which, when the current exceeds a pre set condition, or there is a loss of current in any phase, the device will initiate a trip circuit which in turn causes the power to the starter (contactor) to be disconnected thus making the circuit safe.

Product features and benefits:

  • Low power consumption: Saving space into cabinet
  • Great accuracy: Better motor protection
  • Full reliability: Low risk to burn motor
  • Phase unbalance protection: Better motor protection and current control
  • direct fitting to contactors Series CL: Compact starter
  • Interchangeable with thermal overload relay: No need to redesign existing cabinet
  • Multiple trip class selection: One device cover for start time motor
  • Manual / Auto reset: One device for two solutions

Main characteristics:

  • Setting range from 0.1 up to 150A
  • Self powered
  • Thermal memory
  • Phase loss protection
  • Phase unbalance protection
  • Direct fitting to contactors Series CL
  • Interchangeable with thermal overload relay
  • Multiple ttrip class selection
  • Manual / Auto reset
  • Increased flexibility, less order codes, less stock
  • Tripp class: 5 – 10 – 20 – 30


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