UrgentAutomation sells surplus and refurbished products which are sourced through independent channels. All warranties and support, if applicable, are with UrgentAutomation and not the manufacturer. UrgentAutomation 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. The products listed on this website may vary as to their country of origin; the accessories, and other items included with the product; and the language used on the packaging, the parts, and any related instructions or printed material related to the products. This website is not sanctioned or approved by any manufacturer or tradename listed. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. Read More
Some of the products sold by UrgentAutomation may come with firmware installed on them. UrgentAutomation 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. UrgentAutomation 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, UrgentAutomation 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 UrgentAutomation requires software for operation, you acknowledge that UrgentAutomation 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
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.