Cembre 2051632 RKF-BF4 reinforced female 4 mm bullet socket connector for 0.25-1.5 mm² conductors with anti-vibration copper reinforcement sleeve.
£0.28
The Cembre 2051632, model RKF-BF4, is a premium reinforced female bullet socket connector designed to provide secure, vibration-resistant electrical connections in demanding industrial, automotive and transport applications. Manufactured using tin-plated brass with an integrated anti-vibration copper reinforcement sleeve and halogen-free PA6.6 insulation, it delivers exceptional mechanical strength and long-term electrical reliability.
The reinforced barrel grips both the conductor and cable insulation during crimping, creating superior strain relief compared with conventional insulated connectors. Its funnel-entry design allows fast conductor insertion while ensuring consistent crimp quality, making installation quicker and more reliable.
Designed for 0.25–1.5 mm² copper conductors, the RKF-BF4 features a 4 mm female bullet socket and is ideal for machinery, control panels, commercial vehicles, railway systems and OEM electrical assemblies requiring dependable vibration-resistant terminations.
The Cembre KF reinforced connector range has been developed for demanding applications where electrical connections are subjected to continuous vibration and mechanical loading. The integrated copper reinforcement sleeve improves mechanical strength while maintaining excellent electrical conductivity throughout the service life of the connection.
These reinforced bullet connectors are widely used by machine builders, industrial electricians, panel manufacturers and transport engineers requiring dependable long-term electrical performance.
| Part number | 2051632 |
|---|---|
| Product type | Reinforced female bullet socket connector |
| Connection type | 4 mm female bullet socket |
| Conductor range | 0.25–1.5 mm² |
| Entry diameter | 4.5 mm |
| Terminal material | Tin-plated brass |
| Reinforcement | Copper anti-vibration sleeve |
| Insulation material | Halogen-free Polyamide PA6.6 |
| Operating temperature | -20°C to +105°C |
| Short-term temperature | Up to +110°C |
| Colour | Red |
| Pack quantity | 100 pieces |
| HS Code | 85366990 |
| Country of Manufacture | Taiwan |
It is a reinforced female 4 mm bullet socket connector designed to provide secure electrical connections in industrial and mobile applications.
The connector is suitable for copper conductors ranging from 0.25 mm² to 1.5 mm².
The integrated copper reinforcement sleeve improves mechanical strength, enhances strain relief and provides excellent resistance to continuous vibration.
The connector features durable halogen-free Polyamide PA6.6 insulation suitable for demanding industrial environments.
It is commonly installed in industrial machinery, automation systems, transport equipment, control panels and OEM electrical assemblies.
Cembre reinforced bullet connectors are trusted by industrial electricians, panel builders and OEM manufacturers for delivering secure, vibration-resistant electrical connections in demanding industrial applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...