April 10, 2012 - Eaton upgraded its C440 and XT electronic overload relays, providing motor protection at higher amperages. Designed for global applications, the wider range of electronic relays provide an integrated starter solution and eliminate the need for an external current transformer (CT), reducing overall space and equipment requirements. Eaton’s electronic overload relays are now available up to 175 ampere (A) and feature integral ground fault protection and communications capabilities in a single, compact device.
With a universal design, the electronic overload relays provide an integrated starter solution for applications requiring National Electrical Manufacturer Association (NEMA) size 4 and 185A International Electrotechnical Commission (IEC) contactors.Additionally, the new frame is available in cable-in/cable-out and pass-through versions, making it well suited for upgrading existing customer infrastructure. With a patented, compact design, Eaton electronic overload relays are easy to install, maintain and configure. A light-emitting diode (LED) display on the device provides easy-to-see indication of devicestatus and fault indication, allowing maintenance personnel to quickly determine if the device and motor are operating appropriately.
Customers can select the motor protection features they need, with selectable trip class, ground fault detection, phase imbalance and full load current (FLA) adjustment (5:1). Further, the C440 and XT overload relays can integrate into plant management systems, allowing network monitoring and providing asset protection. Eaton C440 and XT overload relays feature integral communications capabilities, which allow the relays to easily integrate with customers’ preferred industrial network. DeviceNet, PROFIBUS, Modbus, Modbus TCP, Ethernet/IP communication protocols are supported. Designed for global applications, the electronic overload relays meet Underwriters Laboratories (UL), Canadian Standards Association (CSA) and Conformité Européenne (CE) standards.
Additionally, the solid-state overload relays are Restriction of Hazardous Substances (RoHS) compliant.