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The 125R4160-model drive from Reliance Electrics' GV3000 series of industrial drive is a 50/60Hz 3-phase drive that features a HP rating of 100-125, a type 1/IP20 enclosure, and an input voltage rating of 380-460 VAC.



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  • Part Number: 125R4160
  • SKU: 125R4160RE
  • Manufacturer: Reliance Electric
  • Series: GV3000 Drives

125R4160 Technical Specifications

Manufacturer Reliance Electric
Series GV3000
Part Number 125R4160
HP 100-125 HP
Input Voltage 380-460 VAC
Enclosure Type 1/IP20
Keypad/Display Built-In Keypad
Phase 3 Phase
Hz 50/60Hz
Instruction Manual D2-3359 & D2-3360

Product Description

The 125R4160 is a 100-150 HP 380-460 VAC 3-Phase GV3000/SE AC Drive Controller that was originally designed by Reliance Electric. This unit is considered a legacy series, and, depending on when its production dates were, it could have been also manufactured by ABB, Rockwell Automation, or Baldor Reliance. This drive, although somewhat market-limited in its current availability, is available for either repair or replacement here at AX Control, with a standard lead time for repairs of one to two weeks.

Hardware Tips and Specifications

The 125R4160 typically uses a standard V/Hz regulation but it has the ability to change it to a vector regulation. Under the standard regulation it is rated 125-150 HP 170KVA with an output amperage of 210, 168, or 126 A (depending on what kHz it’s using). It has an input amperage of 213 and a full load power loss wattage of 3200. When the controller is using vector regulation it is 100-125HP and 127KVA. It has an input amperage of 159A and depending on the kHz rating an output amperage of 152, 122, or 91 amps. A 250A rated fuse is recommended for this controller.

The 125R4160 uses a NEMA 1 type enclosure. It weighs 96 kg and is 465 mm wide, 1457 mm tall, and 355 mm thick. This enclosure is very tall and has air vents on all sides. On its bottom, the enclosure has two large fans to help keep the air flowing to all of the controller’s internal components. On the bottom and top of the enclosure, there are brackets to panel mount the controller.


The 125R4160 has many internal components that come standard.

This model of GV3000 series of drive includes:

  • fans with wire harnesses
  • a keypad membrane switch that has a mounting bracket
  • a regulator PCB
  • a power module interface PVC and the fuses that go with it
  • a thyristor firing pulse PCB with correspondent fuses
  • a gate driver PCB
  • two 24V DC fans
  • bus clamps
  • intelligent power modules
  • thyristor precharge modules
  • a current transformer
  • a ground fault transformer
  •  an output reactor

Software Tips and Specifications

Unfortunately, when dealing in refurbished and vintage industrial automation products, even the conscious drive user may encounter a number of relevant function faults. One fault that may impact the performance of this 125R4160 drive is the drive power electronic overload fault, commonly signified on the GV3000 drive interface display as the code PUo. The drive power overload fault is oftentimes caused by an overloaded power module encouraged by an excessive DC braking current or torque boost. Corrective action when faced with this PUo fault includes checking the power module's load, DC braking current, and torque boost. If none of these checks yield results, ensure the power module is correctly sized relative to the application. For more information on fault codes, corrective action, and GV3000 drive maintenance, check out instructional manual D2-3359 & D2-3360.


This specific 125R4160 drive out of the GV3000 Reliance Electric series has a 6.0 regulator version, making this drive compatible with a number of regulator boards we offer for sale, including:

Frequently Asked Questions about 125R4160

What does parameter P.015 stand for on a reliance 125R4160?
Parameter P.015 on 125R4160 is the Trim Gain Percentage Parameter. This parameter for 125R4160 specifies a percentage of the selected trim reference entering 125R4160's speed regulator. View figure 4.4 in the software manual for 125R4160 (Manual D2-3359) to understand this parameter more as the figure in the manual diagrams draw and trim gain on a reliance 125R4160. The range for this parameter on 125R4160 is -100% to 100% but 125R4160 has this parameter default set to 0. Before adjusting this parameter on 125R4160, refer to parameter P.014, the Trim Reference Source parameter.
What is the input KVA on 125R4160?
125R4160 has 127 input KVA when 125R4160 is in vector regulation. 125R4160 has 170 KVA input when 125R4160 is in V/Hz regulation.
Can AX Control repair my 125R4160?
Yes, we specialize in repairs on GV3000 drives. We can repair your 125R4160. Our lead time on 125R4160 repair is typically 2 weeks but we can do an expediated repair on your 125R4160 upon request. For a more accurate repair time and a repair quote on 125R4160, email sales@axcontrol.com or call 919-372-8413 about the repair on your 125R4160.
How should I plan before installing my 125R4160?
Lots of planning should be done before installing a reliance 125R4160. For help with planning installation of 125R4160, it is best to look in the hardware manual for 125R4160, Manual D2-3360. The Manual is the GV3000 hardware reference, installation, and troubleshooting manual for 125R4160. Within the manual, Chapter 3 of the manual is the "Planning Before Installation" chapter that refers to installing 125R4160. Chapter 3 in Manual D2-3360 covers general requirements for the installation site, including environmental conditions for 125R4160, area required based on dimensions of 125R4160, clearances for 125R4160, and matching input ratings to 125R4160. This chapter in the manual also covers wiring requirements for 125R4160. For a copy of the manual for 125R4160, request Manual D2-3360.
How many power loss watts does 125R4160 have?
125R4160 has 2410 power loss watts when 125R4160 is in vector regulation. 125R4160 has 3200 watts when 125R4160 is in V/Hz regulation.

Reviews For 125R4160

Internal Review

This powerful industrial AC drive from Reliance Electric drives features the dual-regulation system typical of the GV3000 series, supporting both vector and volts/hertz regulation. This specific drive also boasts Reliance Electrics' custom made IP20 power module frame for versatile and protected use. Available for repair or replacement here at AXcontrol, with a lead repair time of one to two weeks. - AX Control Lead Technician.

Repair Services For 125R4160

Type Lead Time Price Action
Repair Service 1-2 weeks $1023

Our highly skilled technicians can repair your 125R4160. 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

125R4160 Manuals, White Papers, Data Sheets, and Troubleshooting