HEAT RELAYS

Description

General Electric MTO Series Thermal Protection Relay

Thermal protection relay for mini-contactors from 0.11A to 14A, specifications:

  • Control circuit up to 690V
  • Power circuit up to 690V
  • Three-pole differential (protection against phase asymmetry)
  • Auto or manual reset
  • Direct mounting on the contactor or installation separately from the contactor using accessories.
  • Screw terminal and ring terminal options
  • The outputs are protected against accidental contacts in accordance with VDE 0106 T.100 and VBG4.
  • Numbering of conclusions in accordance with EN 50005
  • Degree of protection IP20 (EN 60529)
  • Automatic equalization of characteristics when the ambient temperature changes (from -25 ° C to + 60 ° C)
  • Additional auxiliary block contact 1NO (manual reset only)

General Features:

  • Thermal protection against symmetrical overloads
  • Automatic equalization of characteristics when the ambient temperature changes
  • Reset button, 2 positions: Manual (H) and automatic (A) by switching the blue switch
  • Stop button independent of reset (red)
  • Relay Test Lever
  • Operation indicator (0-1)
  • To simplify the wiring diagram, terminal 96 is mounted directly on the coil clamp (A2), and terminal 14/22 on the auxiliary feedback contact
  • Front-mount switch for selecting current consumption

General Electric RT Series Thermal Protection Relay

Thermal protection relay for contactors from 0.16A to 850A, specifications:

  • Control circuit up to 690VAC current
  • Power circuit: RT1, RT12: up to 690V; RT2, RT22, RT3, RT32, RT4 / 4L, RT5 / 5L and RT6 / 6L: up to 1000V
  • Thermal overload protection
  • Three-pole differential (protection against phase asymmetry)
  • Delayed start protection
  • Automatic equalization of characteristics when the ambient temperature changes from -25 ° C to + 60 ° C
  • Front Installation Test Button
  • Trip Indication
  • Independent auxiliary contacts with double break (1NO + 1NZ)
  • Selecting functions using the switch: Manual RESET, Manual RESET and STOP, Automatic RESET and STOP, Automatic RESET without STOP function

General Electric RE Series Electronic Thermal Protection Relays

Electronic overload relays have been designed primarily to protect electric motors and associated electrical circuits. The operation of these devices is based on the principle of monitoring current in the motor starter circuit. If the current exceeds a predetermined boundary value, or there is a loss of current in any phase, the device will connect a disconnection circuit that will turn off the power to the starter (contactor) and protect the circuit.

Thermal protection relay for contactors from 0.16A to 850A, technical characteristics and advantages:

  • Low power consumption: Save cabinet space
  • Greater precision: Enhanced motor protection
  • Total Reliability: Low Engine Burn Hazard
  • Phase imbalance protection: Advanced motor protection and current monitoring
  • Direct connection to CL series contactors: Compact starter
  • Interchangeable with thermal overload relay: No need to reconfigure existing cabinet
  • Selection of several classes of disconnectors: One device for the motor in time-triggering
  • Manual or automatic reset: One device for two solutions

Key Features:

  • Setting range 0.1–150 A
  • Self-powered
  • Thermal memory
  • Phase loss protection
  • Phase imbalance protection
  • Direct connection to CL series contactors
  • Interchangeable with thermal overload relay
  • Select from multiple classes of disconnectors
  • Manual or automatic reset
  • Increased Functional Flexbone, fewer order codes and spare parts
  • Disconnection class: 5 – 10 – 20 – 30

General Electric Engine Control Relay EntelliPro ES3 / ES5

Key Features:

  • Engine control and protection
  • Pre-programmed typical management and protection methods
  • Profibus-DP and Modbus RTU communication
  • Engine and equipment status information
  • Maintenance Information
  • Manage settings and configurations
  • Predefined Logic
  • Event time logging event log
  • Local control and display connectivity
  • ATEX security marking

Security Features:

  • Overload (Class 5 to 40)
  • Earth fault (Dif. current)
  • Phase Loss
  • Thermistor (PTC)
  • Inrush current
  • Rotor Lock
  • Not enough load
  • Number of launches in a certain period of time
  • Monitoring relay status
  • Monitoring the status of external devices

Diagnostic functions:

  • Time to shutdown on overload and re-enable
  • Number of operations
  • Number of engine starts
  • Engine on / off time
  • Number of overload trips
  • Number of thermal (thermistor) outages
  • Maximum currents
  • Trip Currents

Management Features:

  • Direct Launch System (DOL)
  • Reverse start
  • Star-delta start
  • Star-delta reverse
  • Soft start
  • Reverse soft start
  • Dahlander engine
  • Pole-changing start-up
  • Electromagnetic distributor
  • Servomotor