The Eaton Cutler-Hammer FD FD3110 is a 3-pole circuit breaker rated for 110 A with a 600 V maximum voltage, designed to interrupt current on three conductors in electrical distribution systems. As part of Eaton’s FD family, the FD3110 identifies a specific three-pole configuration within the Cutler-Hammer product line. The 110 A nominal rating indicates the continuous operating current the device is intended to carry under normal conditions, while the 600 V rating marks the upper voltage limit for safe interruption. This unit functions as a protective switching device that provides overcurrent protection for multi-conductor circuits by automatically opening the circuit when an overcurrent condition is detected.
