Crimping Insert Klauke R504 for K50, for 6–16 mm² tubular cable lugs and connectors

The Klauke R504 crimping insert is engineered for use with the K50 crimping system and is suitable for tubular cable lugs and connectors with conductor cross-sections from 6 to 16 mm². It provides the correct tooling profile to form secure, gas-tight crimps that meet common electrical installation and maintenance requirements. The insert fits into the K50 system to enable consistent mechanical and electrical connections when working with stranded or solid copper conductors in building wiring, industrial panels, and repair tasks.

Advantages

The insert offers reliable stroke and profile control within the K50 system to produce repeatable crimps across the full 6–16 mm² range. Its design focuses on dimensional accuracy and durability under repetitive use, helping to reduce rework and ensure consistent contact resistance. Compatibility with a widely used crimping platform makes it easy to integrate into existing toolsets and workflows for electricians and technicians.

Suitable for

• Crimping tubular cable lugs on copper conductors from 6 to 16 mm²
• Electrical installation and wiring in residential and commercial buildings
• Maintenance and repair of control cabinets and distribution boards
• Preparing reliable connections for power distribution and machinery

Key specifications

• Compatible crimping system: K50 platform
• Conductor cross-section range: 6–16 mm²
• Application: tubular cable lugs and connectors
• Material and finish: hardened tooling steel (design for repeated crimp cycles)
• Intended conductor type: stranded and solid copper conductors

How to use

Install the R504 insert into the K50 crimping head according to the K50 system instructions until it seats securely. Select the appropriate tubular lug or connector and strip the conductor to the correct length for full insertion. Insert the conductor into the lug, position the assembly in the die area, and operate the K50 crimping tool following the manufacturer's operating procedure to complete the crimp cycle. After crimping, inspect the joint for proper deformation and ensure the conductor is retained securely with the expected mechanical and electrical contact.

Usage recommendations

Use the insert only with the K50 crimping platform and with the specified conductor range (6–16 mm²). Regularly inspect tooling for wear or damage and replace inserts showing excessive wear to maintain crimp quality. Follow relevant electrical standards and torque requirements for connected terminals and verify connection integrity when used in critical power or safety circuits.