Authorized ABB Distributor (Low Voltage Drives)
ABB - Low Voltage Drives ABB-44525 - Braking Resistor, 2.71 OHMS, 33760 WATTS, ED3 Enclosure, 30W x 18D x 24H in, 129 lbs

ABB Low Voltage Drives ABB-44525 Braking Resistor, 2.71 OHMS, 33760 WATTS, ED3 Enclosure, 30W x 18D x 24H in, 129 lbs

Alternate Item Number: 3AUA0000015258

UPC: 662348000823

Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The ABB Braking Resistor (SKU: ABB-44525) is a high-power resistor designed for dynamic braking in industrial motor control systems. With a resistance of 2.71 ohms and a power rating of 33,760 watts, it efficiently dissipates excess energy during deceleration of AC and DC motors. The ED3-rated enclosure provides IP54 protection against dust and water ingress, ensuring reliable operation in harsh environments. Measuring 30 inches wide, 18 inches deep, and 24 inches high, this resistor is compact yet robust, weighing 129 pounds for stable mounting. It is optimized for use with ABB variable frequency drives (VFDs) and other motor control systems requiring precise braking torque control. The resistor's design minimizes thermal stress during high-power braking cycles, extending system lifespan and reducing maintenance costs. Compatible with standard industrial control panels, it integrates seamlessly into existing motor drive architectures. Manufactured in the US by ABB - Low Voltage Drives, this resistor meets the demands of heavy-duty applications such as conveyors, cranes, and pumps where rapid motor deceleration is critical.
  • Resistance: 2.71 ohms for precise braking torque control
  • Power rating: 33,760 watts for high-energy dissipation
  • ED3 enclosure with IP54 protection for harsh environments
  • Compact dimensions: 30W x 18D x 24H inches, 129 lbs
  • Compatible with ABB VFDs and industrial motor control systems

Specifications

Size
30W x 18D x 24H in
Double plastic fiber optic, Qty 1, 5 meters long

61059113

Double plastic fiber optic, Qty 1, 5 meters long
HMI door mounting kit with 2M cable

181B0399

HMI door mounting kit with 2M cable
CONDUIT MODULE B(LSLV-S100),DFR2-S100

64150005

CONDUIT MODULE B(LSLV-S100),DFR2-S100
FAN POWER SUPPLY BOARD CFV1D.400V/48V

CFW11SP-12387920

FAN POWER SUPPLY BOARD CFV1D.400V/48V
Braking Resistor, 2.02 OHMS, 49941 WATTS, ED4 Enclosure, 30W x 18D x 32H in, 206 lbs

ABB-44529

Braking Resistor, 2.02 OHMS, 49941 WATTS, ED4 Enclosure, 30W x 18D x 32H in, 206 lbs
Braking Resistor, 13.3 OHMS, 6955 WATTS, GCE12 Enclosure, 26.5W x 13D x 5H in, 27 lbs

ABB-44518

Braking Resistor, 13.3 OHMS, 6955 WATTS, GCE12 Enclosure, 26.5W x 13D x 5H in, 27 lbs
Braking Resistor, 8.32 OHMS, 9920 WATTS, GCE18 Enclosure, 28W x 10D x 10H in, 45 lbs

ABB-44520

Braking Resistor, 8.32 OHMS, 9920 WATTS, GCE18 Enclosure, 28W x 10D x 10H in, 45 lbs
Braking Resistor, 8.32 OHMS, 8444 WATTS, GCE15 Enclosure, 26.5W x 16D x 5H in, 38 lbs

ABB-44519

Braking Resistor, 8.32 OHMS, 8444 WATTS, GCE15 Enclosure, 26.5W x 16D x 5H in, 38 lbs

Frequently Asked Questions

What is the purpose of a braking resistor with variable frequency drives?

Braking resistors dissipate regenerated power to prevent bus voltage from exceeding the drive's rated limit, increasing braking torque for faster, controlled braking.

What is the purpose of braking choppers (modules)?

Braking modules monitor the drive's DC bus and activate external braking resistors to manage regenerated power and prevent over-voltage trips.

What wire type should be used when connecting directly to resistors in Type ED enclosures?

If installing without optional terminal connections, always use 200ºC rated silicone or Teflon wire when attaching directly to resistors.

What is the function of the thermal switch in Type GCE and ED enclosures?

The normally closed thermal switch detects resistor temperature overloads and is used to alert or shut down the system if the temperature becomes too high.

What is the conduit knockout size for Type GCE enclosures?

The Type GCE enclosures have removable 1/2 inch conduit knockouts for routing standard 90ºC rated wire.

What is the purpose of the aluminum case in Type CR resistors?

The aluminum case is corrosion-resistant and helps dissipate heat from the resistor element, allowing for efficient cooling.

How are Powerohm Type CR resistors constructed?

They feature a nickel-chromium wire helically wound inside a ceramic fixture, placed in a corrosion-resistant aluminum case with high-temperature wire leads.

What is the typical duty cycle for the listed braking resistors?

The duty cycles listed include 3sec on/27sec off, 10sec on/50sec off, 30sec on/180sec off, and 60sec on/180sec off.

What is the maximum continuous current rating for terminal connections in Type ED enclosures?

Type ED enclosures supply terminal connections up to 400 amps continuous.

What are the voltage ratings for ACS250 drives?

ACS250 drives are available for single-phase 100-120V and 200-240V applications, and three-phase 200-240V and 380-480V applications.