Eaton Cutler-Hammer MT3450T

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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 MT3450T
Product Line Series C M 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 MT3450T is a Variable Voltage AC Drive. This unit also has an amperage rating of 450 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 450 Amps
Dimensions (W x H x D) 8.25 x 16 x 4.06 inches
Frame F
Interrupting Capacity Standard, High, or Ultra High
Part Number/Catalog No. MT3450T
Poles 3
Product Type Trip Unit
Series C
Unit Type Thermal Magnetic
Weight 4 pounds

About the MT3450T

The MT3450T is an 800 Amps, 600 Volts AC, 3-pole rated Thermal-Magnetic Trip Unit manufactured by Eaton. It guards machines against short circuits, overcurrents, and overloads and it works with type MDL and HMDL M-Frame Series-C Eaton high interrupting capacity circuit breakers to protect industrial equipment. The MT3450T thermal-magnetic trip unit features instantaneous trip elements that trip the circuit breaker in the case of high fault currents that exceed the instantaneous pickup setting and it has a casing that is factory sealed to prevent the users from accidentally tampering with its calibration settings. Each of the 3 magnetic units on the MT3450T thermal-magnetic trip unit can be adjusted by rotating the adjustment buttons either clockwise or anti-clockwise to reach the desired rating.

It features 3 conductor poles for connecting trip units to the circuit breaker and a set of latches to help the users easily align the trip unit and the circuit breaker during installation. It is essential to follow Eaton's recommended torquing rating for the MT3450T thermal-magnetic trip unit when screwing its conductor poles onto the load end of the circuit breaker because excessive torquing can shear the threads of the screws and lead to nuisance tripping because of overheating. It seamlessly integrates with the metering and remote monitoring accessories that are compatible with the MT3450T thermal-magnetic trip unit. Note that the MT3450T trip unit may seriously malfunction or derate when it is used in applications that exceed its rating. Properly applied, it can last for many years without requiring maintenance.

Common Misspellings

Manufacturer Part Numbers (MPNs) are often difficult to read. Here are some commonly mistaken versions for the MT3450T:

  • MT345OT
  • MT34S0T
  • MT34SOT
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