Eaton CHKD3400F 3 Pole 400A 600V Circuit Breaker

Eaton's Cutler-Hammer CHKD3400F is a 3-pole circuit breaker rated for 400 A and 600 V. This unit interrupts all three poles to protect three-phase circuits from overloads and fault currents. With a 600 V maximum system voltage, it supports higher-voltage distribution applications while providing reliable protection for feeders and connected equipment in three-phase installations. Three-pole design interrupts all live conductors simultaneously, a common requirement for three-phase power distribution. The 400 A rating defines the current level at which the device will trip to prevent overheating of conductors and loads, while the 600 V rating specifies the maximum voltage of the protected circuit. As part of Eaton's Cutler-Hammer CHKD family, CHKD3400F belongs to a line of protective devices used in three-phase power distribution.