Authorized ABB Distributor (Low Voltage Drives)
ABB - Low Voltage Drives ABB-43505 - Braking Resistor, 1.39 OHMS, 99878 WATTS, ED7 Enclosure, 30W x 18D x 56H in, 442 lbs

ABB Low Voltage Drives ABB-43505 Braking Resistor, 1.39 OHMS, 99878 WATTS, ED7 Enclosure, 30W x 18D x 56H in, 442 lbs

Alternate Item Number: 3AUA0000015204

UPC: 662348000519

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-43505 braking resistor from ABB – Low Voltage Drives is a high-power dissipation solution for industrial motor braking applications. With a resistance of 1.39 ohms and a continuous power rating of 99,878 watts, it safely absorbs regenerative energy during deceleration, preventing overvoltage conditions in drive systems. Its compact footprint of 30 inches wide, 18 inches deep, and 56 inches high, combined with a weight of 442 pounds, ensures compatibility with standard industrial enclosures and mounting configurations. Designed for heavy-duty use in manufacturing, automation, and process control, the ABB-43505 extends the lifespan of motor drives by reducing thermal stress and voltage spikes during braking cycles. It is optimized for systems operating at 480V with a power range of 80 kVA, making it ideal for high-performance motor control applications.
  • Resistance: 1.39 ohms for precise energy dissipation
  • Power rating: 99,878 watts continuous operation
  • Dimensions: 30" W x 18" D x 56" H, 442 lbs for heavy-duty mounting
  • Voltage compatibility: 480V systems with 80 kVA power range
  • Made in USA, UNSPSC 39122004 compliant

Specifications

Nema Rating
ED7
Size
30W x 18D x 56H in
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CFW11SP-12387920

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Frequently Asked Questions

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

Braking resistors are used to dissipate regenerated power, preventing the bus voltage from exceeding the drive's rated limit, especially during faster deceleration or overhauling load conditions.

What is the duty cycle for the resistor selection tables?

The tables list resistor options for various duty cycles, including 3sec on/27sec off, 10sec on/50sec off, 30sec on/180sec off, and 60sec on/180sec off.

What is the voltage range for ACS150 and ACS355 three-phase applications?

The ACS150 and ACS355 drives are available for three-phase 200-240V and 380-480V applications.

What is the voltage range for ACS250 three-phase UL Type 4X applications?

The ACS250 UL Type 4X drives are available for three-phase 200-240V and 380-480V applications.

What is the voltage range for ACS150 and ACS355 single-phase applications?

The ACS150 and ACS355 drives are available for single-phase 200-240V applications.

What is the voltage range for ACS250 single-phase applications?

The ACS250 drives are available for single-phase 100-120V and 200-240V applications.

What is the voltage range for ACS250 three-phase applications (non-UL Type 4X)?

The ACS250 drives are available for three-phase 575-690V applications.

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

The normally closed thermal switch detects resistor temperature overloads, providing a safety mechanism to prevent overheating.

When should 200ºC rated wire be used with Type ED enclosures?

If installing without optional terminal connections, always use 200ºC rated silicone or Teflon wire when attaching directly to the resistor coils in Type ED enclosures.

How are Powerohm Type CR resistors constructed?

They feature a nickel-chromium wire coil inside a ceramic fixture, housed in a corrosion-resistant aluminum case with ceramic potting for electrical isolation and thermal transfer.