Eaton Cutler-Hammer NGH312039E

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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 NGH312039E
Product Line Series G NG 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

This Variable Frequency Drive is manufactured by Allen Bradley Automation. The amperage rating of this Variable Frequency Drive is 120 amps.

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One-Year Warranty

We are proud to offer a one-year DO Supply Warranty with all purchases.

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Technical Specifications

Amps 120 Amps
Frame NG
Interrupting Capacity 65 kAIC at 480 Volts AC
Main Conducting Paths 750 Volts AC
Maximum Opening Time 62 milliseconds
Maximum Rated Current 1200 Amps
Maximum Switching Frequency 60 1/h
Part Number/Catalog No. NGH312039E
Poles 3
Product Type Molded Case Circuit Breaker
Rated Making Capacity 20 Amps
Rated Operational Voltage 600 Volts AC
Terminations Imperial tapped line/load conductor
Trip Unit 310+ Electronic ALSIG with maintenance mode

About the NGH312039E

The Eaton Cutler-Hammer NGH312039E Frame NG Electronic Circuit Breaker is a current limiting breaker with electronic trip units that is used for providing short-circuit and overload protection to conductors and the connected electrical devices. This breaker is designed with imperial load and line side terminals with a 3-pole wiring configuration, and it provides easy mounting using the supplied imperial mounting hardware. It has a nominal current rating of 1200 Amps, with an interrupt capacity of 65 kAIC, and it is suitable for low-voltage applications with 600 Volts AC of maximum operating voltage. The NGH312039E comes with a true RMS current sensing trip unit for enhanced protection and with an embedded system maintenance mode. Like all breakers with electronic trip units, the NGH312039E offers a built-in over temperature trip, with all-around protection for excessive temperature situations. The NGH312039E’s trip unit is designed to provide microprocessor-based protection in systems requiring accurate high coordination, and it has up to 6 current settings that are electronically adjusted using programming devices.

Its trip units have adjustable long time, short time, instantaneous, ground fault pickup settings, and a discriminator circuit which protect the users from hazardous electric shocks as well as making sure that the trip unit functions within the designated parameters. The NGH312039E has a long delay time of 2 to 24 seconds, with a short delay time that is electronically adjusted from 100 to 500 milliseconds and it has a built-in thermal memory which remembers the timing sequence of past overloads and imposes shorter delay timing upon subsequent overloads. For additional protection, there is an instantaneous override with a set value below the breaker’s continuous current rating, and it comes with LED indicators which show fault statuses as well as the causes of faults. The NGH312039E offers digital system monitoring via an optional digital display, and it is shipped with a standard test kit. It has an ambient temperature limit of 40 degrees Celsius, and it can operate optimally at a maximum height of 6000 feet. The NGH312039E has an approximate shipping weight of 20.4 kilograms, and total shipping dimensions of 210.6 x 406 x 140 millimeters.

Common Misspellings

Manufacturer Part Numbers (MPNs) are often difficult to read. Here are some commonly mistaken versions for the NGH312039E:

  • NGH312O39E
  • NGH3I2039E
  • NGH3I2O39E
  • N6H312039E
  • N6H312O39E
  • N6H3I2039E
  • N6H3I2O39E
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