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MARATHON/KULKA 603230203 Open Back Terminal Block

The Marathon/Kulka 603-2302-03 open-back terminal block is designed for robust electrical connections in commercial applications. Constructed with nickel-plated brass connectors and a phenolic insulator base, this terminal block offers excellent conductivity and durability. It is rated for 65 amps and 600 volts AC/DC, and is approved for both factory and field wiring. The block is UL Recognized and CSA Certified, ensuring compliance with industry standards. Its open-back design facilitates easy wire access and termination, making it suitable for a wide range of industrial and commercial electrical systems.

Authorized Distributors
Part No:603-2302-03
Stock:19
Inv Date:06-01-2026
Price: Unit price: $35.89
Buy/RFQ:
Part No:603-2302-03
Stock:19
Inv Date:06-01-2026
Price: Unit price: $35.89
Buy/RFQ:

MARATHON/KULKA 603230203 Open Back Terminal Block Specifications:

  • Wire Range: #6 – 16 AWG
  • Application Torque: 20 in. lbs
  • Current Rating: 65A
  • Voltage Rating: 600 Volts AC/DC
  • Short Circuit Current Rating: 10,000A
  • Storage Temperature Range: -35°C to 110°C
  • Insulator Base Temperature: 150°C
  • Flammability Rating: UL 94V-0
  • Connector Material: Brass, nickel plated
  • Insulator Base Material: Phenolic
  • Screw Material: Brass, nickel plated
  • Rivet Material: Brass, tin plated
  • Epoxy: Hysol HD3404
  • UL Listing: XCFR2.E47811
  • CSA Certification: LR19766
  • CE Compliance: IEC 60947-7-1
  • Dimensions A: Variable (see table)
  • Dimensions B: Variable (see table)

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Frequently Asked Questions

Where can I buy MARATHON/KULKA 603230203?

You can click on the BUY or RFQ button to purchase 603230203 from an authorized MARATHON/KULKA distributor.

How do I troubleshoot issues or seek technical support for part 603230203?

You can download the 603230203 datasheet or visit the MARATHON/KULKA website for support.

Who is the manufacturer of 603230203?

MARATHON/KULKA

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