Why Choose the Partex BF50/FI/VR Fully Insulated Blue Push-On Terminals?
The Partex BF50/FI/VR Fully Insulated Push-On Terminals are practical electrical crimp connectors designed for quick, secure connections to compatible 4.8 mm × 0.8 mm male spade terminals. Supplied in a convenient pack of 100, these blue female push-on connectors are ideal for electrical panel assembly, machinery wiring, equipment maintenance and general electrical installation work.
Featuring a fully insulated design, the Partex BF50/FI/VR terminals provide an insulating sleeve around the female receptacle, helping reduce the risk of accidental contact with the metal connection when correctly installed. Their push-on connection format allows suitably matched components to be connected and disconnected without unscrewing a terminal.
The blue insulation provides a useful visual reference when identifying terminals during cable preparation and installation. As with other insulated crimp connectors, the correct conductor size, crimping tool and mating terminal dimensions must be selected to achieve a dependable electrical connection.
Manufactured by Partex, a recognised supplier of electrical identification and installation products, these connectors are a convenient choice for professionals who need consistent, easy-to-handle push-on terminals for repeat wiring tasks.
Key Advantages
- Fully insulated female push-on design: Helps protect the metal receptacle against accidental contact in correctly assembled connections.
- 4.8 mm × 0.8 mm receptacle size: Designed for compatible male spade or tab terminals.
- Blue insulation: Supports convenient identification during wiring and maintenance.
- Pack of 100: Ideal for panel builders, electrical workshops and repeated installation tasks.
- Crimp termination: Provides a mechanical and electrical connection to a suitably sized conductor without soldering.
- Push-on connection: Allows convenient connection to matching male terminals.
- Compact terminal format: Useful in equipment wiring where space and cable organisation are important.
- Suitable for control panel wiring: A practical option for compatible switches, relays, indicators and electrical components.
- Useful for repairs and maintenance: Supports replacement of matching push-on connections.
- Professional installation accessory: Designed for use with appropriate crimping equipment and compatible conductors.
Key Features
- Manufacturer: Partex.
- Manufacturer part number: BF50/FI/VR.
- Product type: Fully insulated female push-on terminal.
- Terminal connection: Female receptacle.
- Mating tab width: 4.8 mm.
- Mating tab thickness: 0.8 mm.
- Insulation colour: Blue.
- Termination method: Crimp.
- Connection style: Push-on / quick-disconnect.
- Insulation coverage: Fully insulated receptacle.
- Pack quantity: 100 terminals.
- Application: Electrical wiring and equipment connections.
Fully Insulated Construction for Professional Wiring
The Partex BF50/FI/VR features a fully insulated receptacle design intended to provide insulating coverage around the female push-on connection.
This construction is particularly useful where multiple terminals are installed close together within an electrical enclosure or equipment assembly.
Compared with an uninsulated receptacle, a fully insulated push-on terminal helps reduce the likelihood of unintended contact with the connector's metal surfaces, provided the terminal is correctly fitted to a suitable mating tab.
The insulation should not be regarded as a substitute for the protective enclosure, isolation arrangements or other electrical safety measures required by the installation.
For reliable results, the terminal must be crimped using a compatible tool and connected to a male tab of the specified dimensions.
4.8 mm × 0.8 mm Female Spade Connection
The BF50/FI/VR is designed for a 4.8 mm wide × 0.8 mm thick male spade terminal.
These dimensions are important because push-on receptacles depend on the correct mechanical fit between the female connector and the male tab.
A receptacle that is too large may not provide adequate retention or contact pressure, while one that is too small may be difficult to fit or may damage the connection.
The terminal should therefore be paired with a correctly sized male tab rather than selected solely by its insulation colour or appearance.
Where equipment uses different tab sizes, such as 2.8 mm or 6.3 mm, the appropriate alternative push-on terminal should be selected.
Blue Insulation for Easy Terminal Identification
The blue insulation on the Partex BF50/FI/VR helps distinguish it from terminals supplied with other insulation colours.
In many standard insulated crimp-terminal systems, blue is commonly associated with a particular conductor cross-section range. However, colour conventions can vary between product families and manufacturers.
For this reason, the exact conductor size supported by the BF50/FI/VR should be confirmed using the Partex product specification rather than relying on the insulation colour alone.
Using the correct conductor size is essential for achieving a sound crimp connection. An undersized conductor may not be retained securely, while an oversized conductor may prevent correct crimp formation.
Reliable Crimp Termination Without Soldering
The Partex BF50/FI/VR is intended for use as a crimp terminal, allowing the conductor to be mechanically secured to the connector using a suitable crimping tool.
A properly formed crimp can provide a consistent electrical connection without requiring solder.
For installation, the conductor insulation should be stripped to the appropriate length, ensuring that the conductor strands are not damaged. The prepared conductor is then inserted fully into the terminal's crimp barrel.
The correct crimping die should be selected for the terminal design and conductor size. After crimping, the connection should be visually inspected and checked for secure conductor retention.
The completed terminal can then be pushed onto a compatible 4.8 mm × 0.8 mm male tab.
Electrical connections should only be installed or removed after the relevant circuit has been safely isolated.
Convenient Pack of 100 for Panel Building and Maintenance
Supplied in a pack of 100, the Partex BF50/FI/VR is well suited to electrical contractors, maintenance departments, OEM equipment manufacturers and panel-building workshops.
Having multiple matching terminals available helps streamline repetitive wiring tasks and supports consistent connector selection across a project.
The pack format is particularly useful for installations involving numerous push-on connections, such as wiring switches, indicator assemblies and auxiliary electrical components.
It also provides a practical stock item for maintenance teams that regularly replace compatible female spade connectors.
Typical Applications
- Industrial control panel wiring.
- Electrical cabinet assembly.
- Machinery wiring and maintenance.
- Switch and indicator connections.
- Compatible relay and auxiliary component connections.
- OEM electrical equipment manufacturing.
- Equipment repairs and refurbishment.
- Electrical workshop installations.
- Low-voltage control wiring, subject to terminal ratings.
- Replacement of compatible 4.8 mm female spade connectors.
- Appliance and equipment wiring where approved.
- General-purpose electrical termination work.
