239 Motor Protection Relay
The 239 relay is designed to fully protect three phase AC motors against conditions which can cause damage. In addition to motor protection, the
relay has features that can protect associated mechanical equipment, give an alarm before damage results from a process malfunction, diagnose problems after a fault and allow verification of correct relay operation during routine maintenance.
New Harsh Environment Conformal Coating option.
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End-of-Manufacturing Notice: As an alternative, please refer to the Multilin 339 or Multilin 869. View the end-of-manufacturing notice for more details.
Save on installation cost - Compact design
Enhanced protection - incorporates thermal models
Setting flexibility - Multiple setpoint groups
Simplify testing - Built in simulation features
Asset Monitoring - Temperature monitoring via optional
Access information - via Modbus RTU
Follow technology evolution - Flash memory for product field upgrade
Complete protection of small to medium sized motors
Pumps, conveyors, compressors, fans, sawmills, mines
Thermal Overload (15 selectable curves) - Trip and alarm, immediate current overload alarm
Phase short circuit
Thermal memory lockout
Single-Phasing / Current unbalance
Ground fault - trip and alarm
Overtemperature: via thermistor or optional RTD inputs
Multi-speed motor protection
Motor start supervision
Trip record, last 5
Optional analog output
RS485 serial port
40 character illuminated display
6 LED indicators
Compatible with EnerVista Setup software