Joslyn Clark MVC77U034A50-76 Medium Voltage Vacuum Contactor

Upgrade your industrial control systems with the Joslyn Clark MVC77U034A50-76 Medium Voltage Vacuum Contactor. Rated at 400A and 5.0kV, this robust 3-phase USAVAC contactor ensures reliable power switching, optimal motor control, and superior electrical safety with a 60kV BIL rating.

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Joslyn Clark MVC77U034A50-76 Medium Voltage Vacuum Contactor

The Joslyn Clark MVC77U034A50-76 is a highly reliable USAVAC medium-voltage vacuum contactor engineered for demanding industrial control applications. Built with a robust three-pole construction, it features bolted copper bar terminals and a durable metal mounting base for secure and efficient installation. Rated for 400 Amps and 5.0 kV at 50/60 Hz, this 3-phase contactor delivers exceptional performance and electrical safety with a 60 kV impulse BIL rating. It offers superior interrupting capabilities—4.6 kA symmetrical unfused and 44.7 kA symmetrical fused—making it an ideal choice for heavy-duty electrical systems requiring dependable medium-voltage power switching and motor control.

Technical Specifications:

  • Brand: Joslyn Clark

  • Model: MVC77U034A50-76

  • Phase & Frequency: 3-Phase, 50/60 Hz

  • Maximum Voltage Rating: 5.0 kV RMS

  • Amperage Rating: 400 A

  • Impulse BIL: 60 kV

  • Interrupting Rating (Unfused): 4.6 kA Symmetrical

  • Interrupting Rating (Fused): 44.7 kA Symmetrical

  • Construction: Three-pole, bolted copper bar terminals, metal mounting base

Joslyn Clark MVC77U034A50-76 Medium Voltage Vacuum Contactor Description

BrandJoslyn Clark
ModelMVC77U034A50-76

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