Why Choose the Partex RR120 M12 Red Insulated Ring Terminal?
The Partex RR120 is a red pre-insulated ring crimp terminal designed for terminating copper conductors onto M12 threaded studs and bolted electrical connections. Suitable for professional electrical installation and equipment wiring, this ring terminal provides a secure fastening point for connecting a cable to a compatible stud, terminal post or electrical connection assembly.
As part of the Partex insulated crimp terminal range, the RR120 combines a conductive copper terminal body with high-quality PVC insulation around the crimp barrel. The red insulation identifies its intended 0.5–1.5 mm² conductor range (22–16 AWG), helping electricians and assembly technicians select the appropriate terminal for smaller stranded copper conductors.
The M12 ring connection is designed to remain captured beneath a correctly installed nut or fastening assembly, providing a mechanically secure alternative to open-ended fork terminals where complete fastener removal is acceptable. Supplied in a convenient pack of 100 terminals, the Partex RR120 is suitable for control panel manufacturing, electrical equipment assembly, industrial maintenance and repeat cable termination work.
Key Advantages
- M12 ring terminal for compatible 12 mm threaded studs and bolted electrical connections.
- Red PVC insulation provides conductor size identification and protection around the crimp barrel.
- Suitable for 0.5–1.5 mm² stranded copper conductors.
- Copper terminal construction supports effective electrical conductivity.
- Closed-ring design provides secure retention beneath a correctly tightened fastening assembly.
- Crimp termination eliminates the need for soldering when installed using suitable tooling.
- Suitable for professional electrical wiring, cable assembly and equipment maintenance.
- Pack of 100 provides a practical supply for installation and production requirements.
Key Features
- Partex RR120 pre-insulated ring terminal.
- M12 stud compatibility.
- Red insulation for the 0.5–1.5 mm² conductor category.
- Compatible with 22–16 AWG copper conductors.
- High-quality PVC insulating sleeve.
- Copper terminal body for electrical cable termination.
- Closed-ring connection for bolted terminal arrangements.
- Crimp-on conductor termination.
- Suitable for appropriately rated electrical installations.
- 100 terminals per pack.
Technical Specifications
- Manufacturer: Partex
- Product range: Pre-Insulated Ring Terminals
- Model: RR120
- Product type: Insulated ring crimp terminal
- Terminal style: Straight ring
- Stud size: M12
- Nominal stud diameter: 12 mm
- Conductor cross-sectional area: 0.5–1.5 mm²
- Conductor size: 22–16 AWG
- Insulation colour: Red
- Terminal material: C1100 copper
- Insulation material: PVC
- Insulation diameter: 4.3 mm
- Barrel length: 10.5 mm
- Terminal palm thickness: 0.75 mm
- Insulation thickness: 0.8 mm
- Connection type: Bolted ring connection
- Wire termination: Crimp
- Compatible conductor material: Copper
- Product family temperature range: −20 °C to +75 °C
- Product family maximum voltage: 600 V
- Pack quantity: 100 pieces
Secure M12 Ring Connections for Electrical Cable Termination
Ring terminals are commonly used to connect electrical conductors to threaded studs, terminal posts and bolted connection points. The Partex RR120 provides a closed-ring termination designed for M12 fasteners, allowing a correctly crimped copper conductor to be mechanically secured beneath a suitable nut and washer arrangement.
The red PVC insulation identifies the terminal as part of the Partex 0.5–1.5 mm² conductor range. This colour coding helps installers distinguish between red, blue and yellow insulated terminals, which are intended for different wire sizes. Selecting the correct conductor size and crimping profile is essential for producing a reliable electrical connection.
The RR120 features a C1100 copper terminal body with an insulated crimp barrel. Copper provides an effective conductive path between the terminated wire and the connection point, while the insulating sleeve helps protect and support the crimped conductor entry. The closed-ring design helps prevent the terminal from slipping off a fastening point while the nut remains correctly installed.
For best results, the conductor should be stripped to the appropriate length, fully inserted into the terminal barrel and crimped using a tool designed for red pre-insulated terminals. The finished crimp should be inspected for conductor retention and correct compression. The ring should then be installed on a compatible M12 connection and tightened according to the equipment manufacturer's instructions.
The 100-piece pack makes the RR120 particularly useful for repeated electrical assembly tasks, equipment maintenance and cable harness production where a consistent supply of matching M12 ring terminals is required.
Typical Applications
- Termination of 0.5–1.5 mm² copper conductors onto M12 studs.
- Electrical control panel and switchgear wiring.
- Industrial machinery and equipment connections.
- Bolted electrical terminal assemblies.
- Electrical equipment manufacturing and cable harness production.
- Commercial and industrial electrical maintenance.
- Replacement of damaged or incorrectly crimped ring terminals.
- General electrical installation work requiring insulated M12 ring connections.
