BS43N/RA Partex Spade Terminals (Forks), M4 – Narrow, Blue, pack 100

Why Choose the Partex BS43N/RA Blue Insulated M4 Narrow Spade Terminal?

The Partex BS43N/RA is a professional-quality blue insulated M4 narrow spade crimp terminal, also known as a narrow fork terminal, designed to provide secure and convenient electrical connections to compatible screw terminals. Its narrow fork configuration makes it particularly useful in electrical control panels, terminal assemblies and equipment where space around the fastening point is restricted.

Featuring an M4 nominal screw connection and blue insulation, the terminal is intended for the commonly used 1.5–2.5 mm² conductor range, approximately equivalent to 16–14 AWG. Its open-ended fork design allows the terminal to be positioned beneath suitable screw fastening hardware without completely removing the screw, helping simplify installation, inspection and maintenance.

Compared with a standard-width fork terminal, the Partex BS43N/RA narrow spade terminal is designed for applications requiring a slimmer connection profile. Supplied in a convenient pack of 100 terminals, it is a practical choice for electrical panel builders, industrial automation engineers, OEM equipment manufacturers and maintenance professionals.

Key Advantages

• Narrow M4 fork design is suitable for compatible screw connections with restricted surrounding space.
• Blue insulation provides convenient identification of the 1.5–2.5 mm² conductor range.
• Open-ended spade connection allows installation without completely removing suitable fastening screws.
• Compact fork profile is useful for densely arranged terminal connections.
• Crimp termination provides reliable electrical and mechanical contact when correctly installed.
• Insulated barrel helps protect the conductor termination from accidental contact.
• Convenient for maintenance where electrical connections may need to be disconnected and reconnected.
• Suitable for industrial wiring, electrical control panels and machinery assemblies.
• Professional terminal design supports neat and organised cable connections.
• Pack of 100 provides a practical quantity for production wiring and installation work.

Key Features

• Partex insulated narrow spade crimp terminal.
• M4 nominal screw size.
• Narrow fork configuration.
• Open-ended terminal connection.
• Blue insulating sleeve.
• 1.5–2.5 mm² nominal conductor range.
• 16–14 AWG approximate conductor equivalent.
• Crimp barrel termination for suitable stranded copper conductors.
• Designed for compatible screw terminal connections.
• Compact connection profile for suitable space-restricted installations.
• Insulated terminal construction for professional electrical applications.
• Pack quantity: 100 pieces.

Compact M4 Narrow Fork Connections for Electrical Control Panels

Electrical control panels and machinery assemblies often contain closely spaced screw terminals where the available connection area is limited. The Partex BS43N/RA features a narrow M4 fork design intended for compatible fastening points where a standard-width spade terminal may be less convenient. Its compact fork profile can help simplify conductor routing and terminal positioning in suitable electrical equipment.

Like other open-ended spade terminals, the BS43N/RA can be installed or removed from suitable screw connections without completely withdrawing the fastening screw. This makes it useful in maintenance applications where conductors may need to be inspected, replaced or repositioned. The blue insulated crimp barrel helps identify the appropriate conductor range and provides a protective covering around the cable termination.

For reliable electrical performance, the conductor should be correctly stripped and crimped using a suitable tool and die for 1.5–2.5 mm² insulated terminals. The narrow fork must fit correctly beneath the fastening hardware and be tightened according to the equipment manufacturer's requirements. Always confirm that the terminal's fork dimensions and electrical ratings are suitable for the intended connection.

Typical Applications

• Industrial electrical control panels and switchgear assemblies.
• Closely spaced M4 screw terminal connections.
• Machinery wiring and industrial automation equipment.
• Compact terminal block and electrical equipment connections.
• Motor control and auxiliary electrical circuits.
• OEM machinery and equipment manufacturing.
• Electrical wiring harnesses and cable assemblies.
• HVAC controls and building services equipment.
• Industrial maintenance and electrical repairs.
• Electrical panel building where a narrow fork profile is required.