Terminal Connector Wago 2273-203 for 3 conductors 0.5–2.5 mm², 24 A, 400 V

Wago 2273-203 is a three-pole terminal connector designed for making secure electrical connections of solid and stranded conductors with cross-sections from 0.5 to 2.5 mm². Rated for continuous operation at up to 24 A and 400 V, the compact connector is intended for use in distribution blocks, control panels and general electrical installations where a reliable, space-saving terminal is required.

Advantages

The terminal offers tool-free insertion and a reliable clamping mechanism that ensures consistent contact pressure across a range of conductor types and sizes. Its compact housing reduces space requirements in terminal blocks and control enclosures while maintaining good current-carrying capability. Designed for repeated use, the connector supports straightforward wiring work and reduces installation time compared with traditional screw terminals.

Suitable for

• Wiring in distribution boards and control cabinets
• Electrical installations in residential and commercial buildings
• Panel wiring and modular assembly work
• Connecting solid and stranded conductors in maintenance and retrofit projects

Key specifications

• Number of poles: 3
• Conductor cross-section range: 0.5–2.5 mm²
• Rated current: 24 A
• Rated voltage: 400 V
• Compatible conductor types: solid and stranded conductors
• Mounting style: panel/rail or free-housing as typical for compact terminal connectors
• Clamping method: reliable spring or push-in style clamping suitable for repeated connections

How to use

Strip the conductor insulation to the recommended length for this series of terminal connectors, insert the conductor straight into the corresponding pole until it seats firmly and verify the connection by a gentle pull. For stranded conductors, ensure strands are properly formed and inserted to avoid splaying. Use test access points if present to measure circuit continuity or voltage without disturbing the connection. Follow applicable wiring standards and disconnect power before installation or maintenance.

Usage recommendations

Use the connector within its rated current and voltage limits and select conductor sizes within the 0.5–2.5 mm² range. Avoid exceeding the specified ratings and perform periodic inspections in environments with vibration or elevated temperatures. Where required by local code, apply proper marking and secure mounting inside enclosures to maintain safe operation.