Wago 4-conductor Compact Terminal Connector transparent/red (2273-204)

Wago 4-conductor Compact Terminal Connector transparent/red (2273-204) is a compact electrical connector designed to join up to four insulated conductors reliably. The clear housing provides visible confirmation of conductor insertion while the red marking identifies the product variant. This compact connector is intended for use in confined spaces and standard electrical installations such as junction boxes and lighting circuits where quick, tool-free splicing and safe insulation are required.

Advantages

The transparent housing allows visual inspection of conductor position and correct insertion depth. Spring-clamp technology secures conductors without screws, providing reliable contact and vibration resistance. Its compact form factor reduces space requirements in enclosures and simplifies wiring layouts. The device is suitable for repeated use and for a range of conductor sizes within the specified range, supporting efficient installation and maintenance.

Suitable for

• Splicing neutral, phase and earth conductors in junction boxes
• Connecting multiple conductors in lighting fixtures and distribution blocks
• Temporary or permanent connections in residential and commercial electrical installations
• Applications where visual verification of conductor insertion is required

Key specifications

• Number of conductors: 4
• Housing: transparent with red marking for visual verification
• Connection method: spring-clamp (tool-free conductor insertion)
• Suitable conductor types: stranded and solid insulated conductors
• Compact dimensions for use in confined enclosures and junction boxes

How to use

Ensure power is isolated before making any connection. Strip the conductor insulation to the recommended length, insert each conductor into the corresponding entry until it seats firmly and is visible through the transparent housing. Confirm that the spring clamp has engaged the conductor by a slight pull test. Close or position the connector within the enclosure, ensuring no bare conductor is exposed outside the housing.

Usage recommendations

Verify compatibility between conductor cross-section and the connector’s rated range before installation. Avoid using the connector with uninsulated or damaged conductors. When installing in damp or outdoor environments, use suitable enclosure protection and follow applicable electrical codes and standards.