1200A 4.16kV Vacuum Circuit Breaker, 49kA, Spring Mech
The Eaton VR-Series+ EATON-5VHK-VR+350-1200A is a premium medium voltage vacuum circuit breaker engineered for reliable power distribution in industrial, commercial, and utility applications. This vacuum replacement breaker is rated for 4.16 kV nominal voltage class with a continuous current capacity of 1200A and an interrupting rating of 350 MVA (49 kA symmetrical short-circuit current). The unit features a Basic Impulse Level (BIL) rating of 60 kV, ensuring robust insulation coordination against transient overvoltages. The stored energy spring operating mechanism provides dependable closing and opening operations with proven reliability across thousands of duty cycles. Utilizing vacuum interrupter technology, this breaker delivers clean, maintenance-friendly arc interruption with extended contact life compared to traditional air-magnetic designs. This unit is designed as a direct replacement for ITE/ABB 5VHK-350 breakers, enabling modernization of existing switchgear installations without costly cell modifications. Available in drawout configuration, the breaker integrates seamlessly into standard metal-clad switchgear assemblies. Fully compliant with IEEE C37.59-2018, ANSI C37.09, this circuit breaker meets or exceeds all applicable safety and performance requirements. Ideal applications include replacement of legacy ite/abb hk and vhk air-magnetic circuit breakers in existing metal-clad switchgear, utility substations, industrial power distribution, commercial building medium voltage systems. Backed by decades of field-proven performance and continuous engineering improvements, the EATON-5VHK-VR+350-1200A delivers the reliability and safety that operators demand for critical medium voltage power distribution systems.
