Eaton Cutler-Hammer KDB3125

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DO Supply, Inc. sells surplus and refurbished products which are sourced through independent channels. All warranties and support, if applicable, are with DO Supply, Inc. and not the manufacturer. DO Supply, Inc. is not an authorized distributor or representative for the listed manufacturers and makes no representations as to any quality control performed by any listed manufacturer on the products. Read more

DO Supply, Inc. sells surplus and refurbished products which are sourced through independent channels. All warranties and support, if applicable, are with DO Supply, Inc. and not the manufacturer. DO Supply, Inc. is not an authorized distributor or representative for the listed manufacturers and makes no representations as to any quality control performed by any listed manufacturer on the products.

Some of the products sold by DO Supply, Inc. may come with firmware installed on them. DO Supply, Inc. makes no representation as to your ability or right to download, obtain, or use any firmware provided by the product's manufacturer. To the extent you wish to use such firmware, it is your responsibility to comply with the terms of any applicable license or other such agreement related to the download, installation, or use of the firmware. DO Supply, Inc. makes no representation that the version of the firmware that is installed on any product it sells is appropriate for your needs or use. Further, DO Supply, Inc. does not sell, re-sell, or license software that may be needed to operate certain hardware and customers must obtain any necessary software licensing, maintenance, or upgrades from the manufacturer or other authorized source. To the extent any of the products sold by DO Supply, Inc. requires software for operation, you acknowledge that DO Supply, Inc. does not sell or license such software and that it is solely your responsibility to obtain the software or a proper license to use it from authorized sources. Read less

Basic Details

MPN KDB3125
Product Line Series C K Frame
Manufacturer Eaton Cutler-Hammer
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DO Supply is NOT an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty.

Product Description

The KDB3125 is a Variable Voltage Drive that is branded and manufactured by Allen Bradley-Rockwell Automation. The amperage rating of this unit is 125 amps.

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Technical Specifications

Amps 125 Amps
Dimensions (W x H x D) 5.5 x 10.13 x 4.1 inches
Frame K
Interrupting Capacity 65 kA at 240 Volts AC
Part Number/Catalog No. KDB3125
Poles 3
Product Type Molded Case Circuit Breaker
Series C
Unit Type Thermal-Magnetic
Weight 11.5 pounds

About the KDB3125

The Cutler-Hammer KDB3125 is a Type KDB circuit breaker with a non-interchangeable trip unit. This circuit breaker, manufactured by the Eaton Corporation, is a general-purpose device that is suitable for circuit overcurrent protection in domestic and commercial applications. The module is widely used in industrial automation projects for medium-current application protection. The KDB3125 is applicable to DC and AC systems. It has 3 poles, and it can withstand DC voltages of 250 Volts DC and AC voltages of 600 Volts AC. The Cutler-Hammer KDB3125 is designed to be a bolt-on panelboard. As its name suggests, the this MCCB can conduct 125 Amps of current and it will need larger-sized wiring than other circuit breakers. This is why users must plan to leave enough of space around this 5.5 inches x 10.13 inches x 4.1 inches device for proper ventilation.

Even when the KDB3125 circuit breaker has automatically tripped, this device can be reused multiple times after a manual reset is performed over the handle that is available on the front middle part of the unit. Before installing the KDB3125 in an electrical circuit, users should check that its 65 kAIC at 240 Volts AC and its 35 kAIC at 480 Volts AC interrupting capacities fulfill their application needs. The KDB3125 will keep all the devices connected to its load side isolated from surge currents and short-cuts. This will ensure a prolonged product life to the electrical equipment and wiring. Its main components are the upper and lower terminals, trip handle, and the operating mechanisms. It is a lightweight device for its breaking category. It weighs around 5.2 kilograms (11.5 pounds). The KDB3125 molded case circuit breaker has UL, CSA, and IEC certifications.

Common Misspellings

Manufacturer Part Numbers (MPNs) are often difficult to read. Here are some commonly mistaken versions for the KDB3125:

  • KDB312S
  • KDB3I25
  • KDB3I2S
  • KD83125
  • KD8312S
  • KD83I25
  • KD83I2S
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