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

Wago 2273-203 is a compact 3-position terminal connector designed for reliable electrical connections of conductors with cross-sections from 0.5 to 2.5 mm². Rated for continuous currents up to 24 A and voltages up to 400 V, this terminal provides a secure mechanical and electrical connection for both solid and stranded conductors. Its space-saving form factor and clear conductor entry points make it suitable for installations in distribution boxes, control panels, and junctions where a small but robust connector is required.

Advantages

The terminal offers consistent contact pressure and a stable connection that resists vibration and thermal cycling, reducing the risk of loose connections over time. Its design allows quick insertion and reliable clamping of conductors without the need for additional ferrules when used within the specified conductor range. Compact dimensions and standardized mounting options simplify wiring layouts and save space in cabinets and enclosures.

Suitable for

• Electrical distribution boards and terminal strips
• Control panels and automation equipment
• Lighting circuits and building wiring junctions
• Small motors and appliances within the specified current rating

Key specifications

• Number of positions: 3
• Conductor cross-section range: 0.5–2.5 mm²
• Rated current: 24 A
• Rated voltage: 400 V
• Compatible conductor types: solid and stranded
• Compact footprint for space-saving installations

How to use

Ensure power is disconnected before performing any wiring. Strip conductor insulation to the recommended length for the terminal, align the conductor with the entry point and insert fully until mechanical stop is felt. Tighten the clamping mechanism as specified by the manufacturer's instructions to achieve secure contact. Verify the connection by a gentle pull test and, where required, measure continuity or insulation resistance. Install the terminal in the distribution box or panel and secure any protective covers before restoring power.

Usage recommendations

Use only conductors within the specified 0.5–2.5 mm² range and respect the 24 A and 400 V ratings. For stranded conductors without pre-formed ends, consider ferrules where repeated maintenance or vibration is expected. Follow local electrical codes and the installer’s guidelines for torque and insulation stripping lengths.