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LUMBERG KGR81 Circular Connector

The KGR81 is a high-quality circular connector with threaded joint designed for reliable connections in industrial environments. Featuring IP40 protection, it is suitable for printed circuit board back-side mounting, with ten poles offering versatile application options. Made from durable materials including copper alloy and zinc diecast, it withstands temperatures from -40°C to +85°C. The connector ensures easy assembly with torque specifications of 13 Nm and has a contact resistance of 5 mΩ. It supports rated currents up to 3A or 5A depending on configuration, offering excellent electrical performance and environmental resilience, ideal for automation and control systems.

Authorized Distributors
Source:Newark
Part No:KGR 81
Stock:722
Inv Date:06-15-2026
Price: Unit price: $3.75
Buy/RFQ:
Source:DigiKey
Part No:KGR 81
Stock:97
Inv Date:06-15-2026
Price: Unit price: $9.74
Buy/RFQ:
Part No:KGR 81
Stock:100
Inv Date:06-15-2026
Price: Unit price: $6.48
Buy/RFQ:
Source:Arrow EU
Part No:KGR 81
Stock:993
Inv Date:06-16-2026
Price: N/A
Buy/RFQ:

LUMBERG KGR81 Circular Connector Specifications:

  • Protection Class: IP40
  • Material: Copper alloy, zinc diecast, PA GF housing
  • Temperature Range: -40°C to +85°C
  • Contact Resistance: 5 mΩ
  • Rated Current: 3A or 5A depending on version
  • Rated Voltage: 300 V to 160 V depending on pollution degree and version
  • Overvoltage Category: I (IEQ) / UL (400 = CTI < 600)
  • Insulation Resistance: > 100 MΩ
  • Insertion Force: 5 N (10 poles), 3 N to 8 N (3-8 poles)
  • Withdrawal Force: 2 N to 13 N
  • Tightening Torque: 13 Nm
  • Environmental Conditions: -40°C to +85°C
  • Poles: 2, 3, 4, 5, 6, 7, 8
  • Dimensions: Approx. B: 78 mm, A: 8.2 mm, MDQ: 50/100 pieces per package

Buy the Buy Lumberg Circular Connector Part Number KGR81 Online

Enhance your projects with the high-quality Lumberg Circular Connector KGR81. Designed for PCB back-side mounting with 10 poles, it offers robust connection reliability. Made from durable materials, it withstands temperatures from -40°C to +85°C, ensuring stable operation in harsh environments. With a fit for various industrial applications, this connector supports rated currents up to 5A, featuring easy assembly with specified torque. Purchase online today and benefit from fast delivery, excellent quality, and competitive pricing for your automation and control system needs.

Order your Lumberg Series KGR81 threaded circular connector today and ensure reliable, durable connections for your industrial or control projects.

Frequently Asked Questions

Where can I buy LUMBERG KGR81?

You can click on the BUY or RFQ button to purchase KGR81 from an authorized LUMBERG distributor.

How do I troubleshoot issues or seek technical support for part KGR81?

You can download the KGR81 datasheet or visit the LUMBERG website for support.

Who is the manufacturer of KGR81?

LUMBERG

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