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High Voltage

Made in the USA Mining PDF drawings available upon request.

415 and 515 Portable High-Voltage Cable Couplers

EPDM Insulators -- Dura-Tube 500 Ampers / 15,000 Volts Maximum


  • Corrosion-Resistant Aluminum
  • Rigid, Non-Breakable EPDM Insulators
  • 500 Amp Contacts
  • Portable Cable Mounting
  • Switchgear or Equipment Mounting
  • Standard Cover, Stress Control Kit, Instructions Included

High Voltage
High Voltage
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Product Catalog

Compound is NOT included and is not required up to 7,500 Volts. ABOVE 7,500 Volts and when compound is required, use COLDPOUR® Compound. Do NOT use asphalt compound with EPDM style couplers. Compound mandatory for 15kv.


  • Superior Electrical and Physical Protection
  • Fewer Mating Problems
  • Quicker Installation
  • Quick Connect-Disconnect
  • Versatile Application

475 and 575 Portable High-Voltage Cable Couplers

Polyester Fiberglass Insulator 500 Ampers / 7,500 Volts Maximum

This series is the same as the 415 and 515 series except the insulator is polyester fiberglass rather than EPDM. Asphalt compound is included.

366 Portable High-Voltage Cable Couplers

EPDM Insulators -- Continu-Shield 200 Ampers / 6,600 Volts Maximum


  • Corrosion-Resistant Aluminum
  • Compact Design
  • Unbreakable Molded EPDM Insulators
  • Continuous Shield Design
  • Airtight Insulator Connection
  • Double Start Acme Thread
  • NO Compound Required


  • No Compound Required
  • Small Size, Lightweight
  • More Economical
  • Better Fault Protection
  • Better Electrical Characteristics

Special Mine Services, Inc.