Eaton Cutler-Hammer GD3070

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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 GD3070
Product Line Series C G Frame
Manufacturer Eaton Cutler-Hammer

Product Description

The Eaton GD3070 Thermal-Magnetic Molded Case Circuit Breaker operates with 3 Pole(s) and 70 Trip Amps. The module has a G-Frame and 4.88 x 3 x 2.63 in. Dimensions (H x W x D).

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Technical Specifications

Frame G
kA at 480V 4.88 x 3 x 2.63 in.
Part Number/Catalog No. GD3070
Pole(s) 70
Product Type Molded Case Circuit Breaker
Series C
Trip Amps 22
Type Thermal-Magnetic

About the GD3070

The GD3070 from Eaton Corporation is a complete GD type Series C circuit breaker. The three-pole GD3070 uses fixed thermal and fixed magnetic tripping technology. The trip unit is noninterchangeable. It is rated for 70 Amps, 480 Volts AC and 125/250 Volts DC. At 240 Volts AC, it carries a rating of 65 kilo-Amps interrupt capacity and at 480 Volts AC it carries a rating of 14 kilo-Amps interrupt capacity. The circuit breaker supports 50 and 60 Hertz frequencies. It is UL certified. Accessories available for use with the GD3070 include an auxiliary switch, shunt trip, log dog, lockout switch, under-voltage release mechanism, and pad-lockable handle. The GD3070 needs to be inspected prior to installation. After inspection, it can be mounted and the termination can be carried out.

To ensure the safety of personnel carrying out the installation, it is essential that the circuit breaker is in the off state and no voltages are present. The above-mentioned precaution is even more important for reverse-feed applications. Maintenance on the GD3070 should only be performed in the absence of voltages. Periodic maintenance is recommended and it includes inspection and field testing. Inspection involves removing moisture, dust, and grease, ensuring that the mechanical linkages are free, checking for cracks and discoloration, and checking connectors and terminals for symptoms of overheating or looseness. Field testing should be performed in accordance with the NEMA standards. The GD3070 is a G-frame device. It is sealed at the factory and as per the UL standard, the internal accessories need to be factory-installed. The GD3070 measures 3.5 x 3.5 x 5.12 inches and it weighs 2 pounds.

Common Misspellings

Manufacturer Part Numbers (MPNs) are often difficult to read. Here are some commonly mistaken versions for the GD3070:

  • GD307O
  • GD3O70
  • GD3O7O
  • 6D3070
  • 6D307O
  • 6D3O70
  • 6D3O7O
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