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MARATHON/KULKA 621RZ20 Terminal Block

The Marathon/Kulka 621-RZ-20 terminal block is a robust and reliable solution for connecting wires in commercial appliances and other industrial applications. Its closed-back design provides enhanced safety and insulation, while the high barrier construction minimizes the risk of short circuits. Rated for 20 amps and 600 volts, this terminal block is suitable for a wide range of power distribution and control circuits. It is UL Recognized and CSA Certified, ensuring compliance with industry standards. The block accepts wire sizes from #12 to #22 AWG and is designed for easy installation and maintenance.

Authorized Distributors
Part No:621RZ20
Stock:245
Inv Date:06-01-2026
Price: Unit price: $78.97
Buy/RFQ:
Part No:621-RZ-20
Stock:119
Inv Date:06-01-2026
Price: Unit price: $29.94
Buy/RFQ:
Part No:621-RZ-20
Stock:119
Inv Date:06-01-2026
Price: Unit price: $29.94
Buy/RFQ:

MARATHON/KULKA 621RZ20 Terminal Block Specifications:

  • Wire Range: #12 - #22 AWG
  • Wire Binding Screw: #12 - #22 AWG
  • Current Rating: 20A
  • Voltage Rating: 600 Volts AC/DC
  • Short Circuit Current Rating: 10,000A
  • Insulator Base Temperature Rating: -40° C/F to 125°C (257°F)
  • Flammability Rating: UL 94V-0
  • Connector Material: Brass, tin plated
  • Insulator Base Material: Glass filled polycarbonate
  • Drive Screw Material: Stainless steel
  • Screw Material: Steel, nickel plated
  • UL Recognition: UL 1059
  • CSA Certification: CSA C22.2 No. 158
  • CE Compliance: IEC 60947-7-1
  • Mounting Hardware: #6 fastener, torque to 10-15 in. lbs.
  • Dimensions A: 9.50
  • Dimensions B: 9.19

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Frequently Asked Questions

Where can I buy MARATHON/KULKA 621RZ20?

You can click on the BUY or RFQ button to purchase 621RZ20 from an authorized MARATHON/KULKA distributor.

How do I troubleshoot issues or seek technical support for part 621RZ20?

You can download the 621RZ20 datasheet or visit the MARATHON/KULKA website for support.

Who is the manufacturer of 621RZ20?

MARATHON/KULKA

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