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3 year warranty

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Relay Model 239 is part of the Motor Management Relay System produced by General Electric with a variety of different protection features such as undercurrent. This model is mostly used to protect three-phase alternating current drives.



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  • Part Number: 239
  • SKU: 239GM
  • Manufacturer: GE Multilin
  • Series: 239 Motor Protection Relay

239 Technical Specifications

Approximate Shipping Weight 5 lbs. or 2.3 kg
Communications Protocol Modbus® RTU
Fuse Rating Slow Blow, High Breaking Capacity
Locked Rotor Start Protection 0.5 to 11.0 xFLC
Overload Curves Trip Time Pickup Level 1 to 1500 A
Thermistor Accuracy ±5% or 100 Ω, whichever is greatest
Type of Switch Inputs Dry Contacts
Unbalance Accuracy ± 2%
VDC Control Power Input 90 to 300 VDC

Product Description

Motor Protection Relay 239 was designed by General Electric to fully protect three-phase AC motors against damaging conditions. This model can protect motors and does also have options to protect the mechanical equipment the unit is being used with. If a potential process malfunction has occurred this model does have the capability to sound off an alarm prior to any damage occurring. If diagnostic issues occur during the operation of this model verification is needed so the relay’s operation can be corrected during the routine maintenance of the motor.

One major upside of the 239 Relay is that the aerodynamic and compact design will help lower and assist with the installation costs. If enhanced protection of any kind is needed this model will incorporate other thermal models to help with the protection feature. Due to a collective group of setpoints, the 239 model allows for settings on this model to be more flexible. 

For simple easy testing, the 239 comes with built-in simulation features. This unit has temperature asset monitoring and a separate flash memory which allows for product field upgrades. There are two primary ground faults used with this device- alarm, and trip. The 239  has thermal overload with fifteen selectable curves with features such as immediate current and overload alarm. This device also has an option of single-phasing and current unbalance. 

The 239 has multi-speed motor protection as well as motor start supervision. This unit is equipped with a display that can focus on temperature, current, and status. There is a trip record on this device that has the ability to save up to the last five events. 

Frequently Asked Questions about 239

What is the mechanical jam trip feature of the GE Multilin 239 motor protection relay?
The motor protection relay 239 GE Multilin product has a mechanical jam trip feature that allows protection of various parts of a motor in the event that there is a jam. The saw mill cutters, fans, and other various parts are protected by this motor protection relay system in the event of a mechanical jam.
What are the various order codes that I see on the end of the Multilin 239 part number and what do they mean?
The various order codes that appear added after the parent GE 239 motor protection relay part afford different options to the motor protection relay. For example the H order code signifies an option for a harsh environment conformal coating to be included with the 239 motor protection relay. Similarly the AN order code includes a single isolated analog output with three mA varieties. Additionally this AN order code is programmable with the output parameter of the 239 motor protection relay. 
How many relays are needed in order to protect each motor with thee 239 GE Multilin motor protection relay?
Typically one 239 Multilin motor protection GE relay is necessary to protect each motor. If the over temporature option is selected then a maximum of three RTDs are able to be monitored. The purpose of the motor protection relay installation is to protect and monitor motors in order to reduce time that production is down stemming from process problems or other malfunctions. 

Reviews For 239

Internal Review

The 239 Motor Protection Relay has a communication link that can use only one computer, such as a DCS or PLC, to issue commands. These commands can be viewed to make sure the setpoints and values are correct. - AX Control Technician

Repair Services For 239

Type Lead Time Price Action
Repair Service 1-2 weeks $1943

Our highly skilled technicians can repair your 239. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More

239 Manuals, White Papers, Data Sheets, and Troubleshooting