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Home GE Multilin 239 Motor Protection Relay 239-RTD

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3 year warranty

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About | Product Specifications | FAQs

239-RTD

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  • 5.00 (3)
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    Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 5.00 (3)
  • Click a star to rate this product
Protection Relay Model 239-RTD with programmable RTD types, nickel, platinum, or copper, three mix stator/beating RTDs, 70 to 265 VAC.
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  • Part Number: 239-RTD
  • SKU: GM-18769
  • Manufacturer: GE Multilin
  • Series: 239 Motor Protection Relay

239-RTD Technical Specifications

Ambient Temperature Range –10°C to +60°C
Dielectric Strength Type Tests 2.0 kV for 1 Minute to Relays, CTs, Power Supply
Humidity 95%, non-condensing
Phase Current CT Inputs 1 A and 5 A Secondary
Shipping Weight Approximately 5 lbs.
Thermal Start Protection Separate Start and Run Protection
Thermistor Cold Resistance 100 to 30,000 Ω
UL Compliance E83849 UL listed for the USA and Canada
Manufacturer GE Multilin, GE Vernova, or GE Grid Solutions
Part Number 239-RTD
Series 239 Motor Protection Relay

About the 239-RTD

  • The 239-RTD model of the General Electric Motor Protection Relay series supports three types of RTDs: 100-ohm nickel, 120-ohm nickel, and 10-ohm copper.
  • Proper programming is essential for correct RTD input after installation.
  • When used outside the factory, the standard RTD for this relay is 100-ohm platinum.
  • The 239 relay senses signals from motor bearings and/or RTDs in stator slots.
  • The 239-RTD model has an internally connected ground safety feature at terminal thirteen.
  • When using the 10-ohm copper RTD, ensure lead resistance is as low as possible.
  • The working temperature range for this model is -40°C to 200°C (-40°F to 400°F).
  • The alarm/trip temperature range is approximately 0°C to 200°C.
  • The relay has a dead band of 2°C (4°F). 
  • The accuracy of the 239-RTD is ±2°C.
  • Platinum (Pt) or Nickel (Ni) RTDs have a maximum lead resistance of 25 Ω.
  • Copper (Cu) RTDs have a maximum lead resistance of 3 Ω with three-wire lead resistance compensation.
  • For more information on operation, installation, and features, refer to the 239 Motor Protection Relay Instruction Manual.
  • The order code for model type and functions is located on page seven of chapter one in the manual.

Frequently Asked Questions about 239-RTD

How does the 239-RTD Multilin relay protect from damage to motors?
The GE Multilin 239-RTD actually sounds an alarm prior to damage from a process malfunction. It can also diagnose and verify correct function. 
Does it matter what voltage is for the motor being protected by the 239-RTD?
No, the voltage does not matter. The 239-RTD system will protect a motor regardless of the specific voltage. 
How many relays are needed?
One 239-RTD relay is needed for each motor, even though motors can be guarded no matter which voltage they are. 
What differentiates the 239-RTD from the 239-RTD-AN and from the 239-RTD-AN-H?
The GE multilin 239-RTD is different from the 239-RTD-AN and from the 239-RTD-AN-H in terms of its composition. The 239-RTD is made to protect three motors, and has a programmable feature. It is also composed of copper, nickel, and platinum. 

Reviews For 239-RTD

Internal Review
(5.0)

When searching for a model that has multiple accessories including ground and phase CTs, as well as an RS232 to RS485 converter the 239-RTD model is the perfect model. - AX Control Technician

Repair Services For 239-RTD

Type Lead Time Price Action
Repair Service 1-2 weeks $1685

Our highly skilled technicians can repair your 239-RTD. 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
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239-RTD Manuals, White Papers, Data Sheets, and Troubleshooting