75930 Series

With a patented weld breaker safety feature and integrated lockout/tagout, the 75930-Series Battery Master Disconnect Switch with Auxiliary Contact is designed for safely cutting off battery power to all electrical systems aboard heavy-duty vehicles and equipment used in mining, agriculture, construction, and transportation. This dual-pole, single-throw (DPST) manual battery disconnect switch is constructed with a robust engineered polymer housing, offering a contemporary design that stands up to the harsh conditions typically found in commercial vehicle environments. Carrying an IP67/IPX9K rating, the switch is protected against dust, debris, and water.


  • Max Voltage Rating: 32V DC
  • Continuous Current Ratings:
  • Main Contact:
    • 200A with 90mm2 cables
    • 300A with 120mm2 cables
  • Inrush Current Rating:
  • Main Contact:
    • 500A per 60s at 23°C
    • 1,000A per 15s at 23°C
  • Aux Contact: 20A per 180s at 23°C
  • Actuator: Removable Handle
  • Housing: Engineered Polymer
  • Circuitry: DPST
  • Contacts:
    • Main Contact: Copper
    • Aux Contact: Stainless Steel
  • Hardware: Stainless Steel
  • Ingress Protection: IP67 / IPX9K
  • Output Terminals:
    • Main contact: 2 x M10
    • Aux contact: 2 x M5
  • Recommended Torque:
    • Main contact: M10, 18 ± 2Nm
    • Aux contact: M5, 2 ± 0.5Nm
  • Operating Temp: 40°C to + 85°C
  • Terminal size:
    • Main contact: M10 x 90mm2
    • Aux contact: M5 x 2.5mm2
  • 1 Year Manufacturers Warranty

Cole Hersee_75930_Datasheet_2024






Body colour

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Part #

75930-01-BL Red Handle Battery Master Switch – Blister
75930-01B Red Handle Battery Master Switch – Bulk
75930-02-BL Yellow Handle Battery Master Switch – Blister
75930-02B Yellow Handle Battery Master Switch – Bulk
75930-03-BL Black Handle Battery Master Switch – Blister
75930-03B Black Handle Battery Master Switch – Bulk


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