Why Choose the Cembre 2050110 RF-M3.5/1 Insulated Ring Terminal?
The Cembre 2050110, also identified as RF-M3.5/1, is a professional pre-insulated ring terminal designed for secure termination of copper conductors in electrical panels, machinery, control systems and industrial installations. Its closed ring design provides a dependable electrical and mechanical connection to compatible M3.5 studs and screw terminals.
Designed for conductors from 0.25–1.5 mm², the 2050110 features red PVC insulation and a terminal body manufactured from high-purity electrolytic copper. The insulated crimp barrel helps protect the conductor termination while the easy-insertion design supports efficient and consistent installation.
With an M3.5 stud size and approximately 3.7 mm ring opening, the Cembre RF-M3.5/1 is particularly suitable for control panels, industrial machinery, HVAC equipment and other electrical systems requiring dependable small-conductor termination. The closed ring remains securely retained beneath the fixing screw or nut until the fastener is removed.
Key Advantages
- Professional pre-insulated ring terminal for copper conductors.
- 0.25–1.5 mm² conductor range suitable for electrical and control wiring.
- M3.5 stud size with approximately 3.7 mm ring opening.
- Closed ring design provides secure mechanical retention at the connection point.
- Red PVC insulation provides protection and straightforward conductor-size identification.
- High-purity electrolytic copper construction supports excellent electrical conductivity.
- Easy-insertion design assists efficient conductor installation before crimping.
- Suitable for professional electrical installations operating from -20 °C to +80 °C.
Key Features
- Cembre RF-M3.5/1 pre-insulated ring terminal.
- 0.25–1.5 mm² conductor capacity.
- M3.5 connection size.
- 3.7 mm ring opening.
- 6.2 mm ring width.
- Red PVC insulation for easy identification.
- Manufactured from 99.95% purity electrolytic copper.
- UL 94 V0 flammability classification.
- Easy-insertion design for straightforward conductor installation.
- Designed to meet UL 486A-486C requirements.
- Operating temperature range of -20 °C to +80 °C.
- Short-duration temperature resistance up to 90 °C.
Reliable Electrical Termination for Copper Conductors
Pre-insulated ring terminals provide a secure method of terminating copper conductors onto threaded studs and screw connections. Once correctly crimped, the terminal forms a firm mechanical and electrical connection with the conductor, while the closed ring remains captive beneath the fixing screw or nut until the fastener is completely removed.
The Cembre RF-M3.5/1 combines high-purity electrolytic copper construction with durable PVC insulation and an easy-insertion design. Its compact M3.5 ring connection and 0.25–1.5 mm² conductor range make it suitable for dependable wiring connections across industrial equipment, control systems and electrical installations.
Typical Applications
- Electrical control panels and cabinets.
- Industrial machinery wiring.
- Automation and control equipment.
- HVAC electrical systems.
- Lighting installations.
- Switchgear and distribution equipment.
- M3.5 stud and screw terminal connections.
- Machine building and OEM electrical assemblies.
