2-contact terminal Wago 221-412 for fine-stranded conductor 0.14–4 mm²

Wago 221-412 is a 2-contact connection terminal designed for fine-stranded conductors with cross-sections from 0.14 to 4 mm². It allows tool-free push-in wiring to make quick, space-saving electrical connections in control cabinets, junction boxes and general electrical installations. The compact housing and clear marking provide a straightforward wiring layout while ensuring reliable contact for flexible conductors.

Advantages

The terminal offers tool-free push-in connection for fast assembly and reduced installation time. Its transparent housing section enables visual inspection of conductor insertion and contact quality. The compact two-conductor design saves space on DIN rails and inside enclosures, while the spring clamp mechanism ensures consistent contact force and vibration resistance.

Suitable for

• Connection of fine-stranded flexible conductors in control cabinets
• Branching and terminating circuits in junction boxes
• Space-limited installations where compact two-contact terminals are required
• Temporary test connections and maintenance operations

Key specifications

• Number of contacts: 2
• Conductor cross-section range: 0.14–4 mm² (fine-stranded conductors)
• Connection method: push-in / spring clamp (tool-free)
• Housing: compact insulating material with transparent section for inspection
• Typical application: fixed wiring in control cabinets, junction boxes and electrical installations

How to use

Strip the conductor to the appropriate length for the terminal, verify the conductor is fine-stranded and within the 0.14–4 mm² range, then insert the conductor directly into the push-in opening until it seats. For disconnection or to reposition a conductor, use the designated release actuator or follow the manufacturer's procedure for releasing the spring clamp. Ensure proper routing and strain relief of conductors inside the enclosure to maintain long-term reliable contact.

Usage recommendations

Use Wago 221-412 terminals within their specified conductor cross-section range and in installations that require compact two-conductor connections. Verify compatibility with conductor type (fine-stranded) and apply appropriate wire stripping length. Avoid exceeding rated current and environmental conditions specified for the installation; follow applicable electrical codes and safety practices during installation.