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LUMBERG KFR30 Circular Connector

The KFR series circular connectors feature threaded joints compatible with IEC 61076-2-106 standards, rated IP40/IP67/IP68 for diverse environmental conditions. Designed for printed circuit boards, these connectors withstand temperatures from -40°C to +85°C, with insulation bodies made of V-0 rated PA GF. Contact bushings are silver- and gold-plated CuZn, ensuring reliable electrical performance. Mechanical data include M16x0.75 threading, suitable for various mounting configurations, with recommended tightening torque of 3Nm. They serve applications requiring robust connections in industrial environments.

Authorized Distributors
Source:Newark
Part No:KFR 30
Stock:56
Inv Date:06-18-2026
Price: Unit price: $0.96
Buy/RFQ:
Source:DigiKey
Part No:KFR 30
Stock:100
Inv Date:06-18-2026
Price: Unit price: $5.88
Buy/RFQ:
Part No:KFR 30
Stock:0
Inv Date:06-18-2026
Price: Unit price: $1.94
Buy/RFQ:

LUMBERG KFR30 Circular Connector Specifications:

  • Temperature Range: -40°C to +85°C
  • Insulating Body Material: PA GF, V-0 according to UL94
  • Contact Material: CuZn, silver- and gold-plated, tin-plated in solder area
  • Housing Material: Zinc diecast, pre-copper and nickel-plated
  • Thread Size: M16x0.75
  • Insertion Force per Contact: 5.0N
  • Withdrawal Force per Contact: 2.12N (3-8 poles), 0.9N (12 poles)
  • Tightening Torque: 3Nm
  • Protection Class: IP40 (measured with steel pin, 15mm thickness)
  • Rated Current: 5A (3-8 poles), 3A (12 poles)
  • Rated Voltage: varies by version, up to 300V with pollution degree 1
  • Rated Impulse Voltage: 1500V
  • Insulation Resistance: > 100 MO
  • Contact Resistance: 5mΩ
  • Overvoltage Category: I
  • Material Group: I (IEQ)/A (UL)

Buy the Lumberg Series KFR Circular Connector: KFR30

Enhance your industrial connectivity with the Lumberg KFR series circular connectors, featuring threaded joints, IP ratings up to IP68, and temperature ratings from -40°C to +85°C. Designed for PCB mounting, these connectors boast durable zinc diecast housings, silver and gold-plated contacts, and reliable electrical specifications. Perfect for demanding environments, they offer easy installation with a recommended tightening torque of 3Nm. Order online today to ensure robust and secure connections for your industrial applications.

Buy Lumberg KFR30 now and experience unmatched reliability and performance in industrial mounting environments.

Frequently Asked Questions

Where can I buy LUMBERG KFR30?

You can click on the BUY or RFQ button to purchase KFR30 from an authorized LUMBERG distributor.

How do I troubleshoot issues or seek technical support for part KFR30?

You can download the KFR30 datasheet or visit the LUMBERG website for support.

Who is the manufacturer of KFR30?

LUMBERG

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