Cable accessory Rittal 4050.734 — terminal sleeve kit (DIN color code)

Rittal 4050.734 — terminal sleeve kit (DIN color code) is a set of insulated wire end ferrules designed to simplify and standardize conductor termination in control panels, electrical enclosures and industrial wiring installations. The kit follows DIN color coding conventions to make phase and function identification straightforward, and is intended for use with crimping tools on stripped conductors to provide reliable, vibration-resistant connections and improved contact surface area for screw terminals and connector blocks.

Advantages

The terminal sleeve kit provides consistent, factory-quality end terminations that reduce stray wire strands, improve electrical contact and prolong the life of screw and clamping connections. Color-coded insulation allows rapid visual identification of conductors according to DIN standards, supporting organized wiring and easier maintenance. The sleeves are compact and designed for secure crimping, which helps maintain circuit reliability in industrial and commercial installations.

Suitable for

• Termination of stranded copper conductors in control cabinets and distribution boards
• Wiring of control systems, PLCs and terminal blocks where clear conductor identification is required
• Electrical installations in industrial machinery and switchgear subject to vibration
• Field wiring and repair tasks performed by electricians and maintenance technicians

When it may not be suitable

This kit is intended for standard stranded copper conductors and crimp-type connections; it is not suitable for use on solid single-core wires that require different end treatments or for direct soldered joints. It may not be appropriate where extremely large conductor cross-sections outside the kit’s supported range are used, or where non-standard color coding is required by a specific installation.

Key specifications

• Insulated ferrule type with color-coded sleeves according to DIN coding
• Designed for crimp termination to improve contact reliability on screw and clamp terminals
• Suitable for use with standard electrical crimping tools
• Intended for stranded copper conductors used in control panels and switchgear

How to use

Strip the conductor to the recommended length, insert the bare strands fully into the ferrule barrel, and use a properly sized crimping tool to make a secure crimp. Ensure the colored insulation remains visible to maintain identification. After crimping, check that no stray strands protrude and that the ferrule is seated firmly against the conductor insulation before inserting the terminated wire into terminal blocks or screw connections.

What to consider before purchase

• Confirm the kit includes ferrule sizes compatible with the conductor cross-sections you commonly use
• Verify the color-coding scheme matches the DIN standard required for your installation
• Ensure you have the correct crimping tool for insulated ferrules to achieve reliable terminations
• Consider the working environment (vibration, temperature) to select appropriate ferrule materials and insulation

Usage recommendations

Use Rittal terminal sleeves with a matched crimping die and perform pull tests on representative terminations to confirm mechanical security. Maintain clear documentation of color-code assignments in wiring schematics to keep identification consistent across panels and maintenance activities.