CTF225 | Allen Bradley Series C F Frame

Eaton Cutler-Hammer CTF225

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Basic Details

MPN	CTF225
Product Line	Series C F Frame
Manufacturer	Eaton Cutler-Hammer

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 Voltage Drive is manufactured by Rockwell-Automation. The amperage rating of this unit is 225.

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Technical Specifications

Amps	225
Frame	F
Part Number/Catalog No.	CTF225

Product Type	External Neutral Sensor
Series	C

About the CTF225

The Eaton Cutler-Hammer CTF225 is an External Neutral Current Transformer (ENCT) with a current rating of 225 Amps. This sensor is built in systems to measure the neutral current. This is an additional device that is optionally connected to the C Series F Frame product line of molded case circuit breakers with 3 poles and 225 Amps rated current. The mounting location of the transformer is external. The information of the amount of current flowing through a neutral conductor is scaled to a lower value by means of current transforming. This lower current value is then processed by a microcontroller installed inside of an electronic trip unit which can trip the circuit breaker. Electronic trip units from the C Series that can process data from the CTF225 are 210+ and 310+ type electronic trip units.

For residual ground fault sensing, it is important to note that if the system neutral transformer is grounded and if there are loads applied between the phase and neutral transformers, then the neutral current transformer device like the CTF225 can be used to measure this kind of load in the system. Turn off any existing power supply to the MCCB and external neutral current transformer before working on or inside equipment. To install the sensor, the users need to insert it in the neutral line (2 connection points to 2 bigger screws) and make connections of output terminals (2 smaller screws) to the MCCBs trip unit. Route the wires according to the application requirements. After the installation of the CTF225, primary testing should be made to ensure that all the trip system components are working properly.

Common Misspellings

Manufacturer Part Numbers (MPNs) are often difficult to read. Here are some commonly mistaken versions for the CTF225:

CTF22S

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.