Terminal clamp | electrical wire connector | universal | 2x0.2-4mm² | for all wire types | WAGO | 221-412 | 4050821808435

Technical Specifications
Number of contacts: 2
Number of potentials: 1
Rated current: 32 A
Rated voltage: 450 V
Impulse voltage: 4 kV
Suitable conductor material: Copper
Solid conductors: 0.2–4 mm²
Stranded conductors: 0.2–4 mm²
Flexible conductors: 0.14–4 mm²
Rated cross-section: 4 mm²
Stripping length: 11 mm
Connection direction: Side entry
Width: 13.2 mm
Height: 8.4 mm
Depth: 18.6 mm
Housing material: Polycarbonate (PC)
Flammability class: UL94 V2
Operating temperature: up to +85°C
Maximum continuous temperature: +105°C
Color: Transparent / Orange
Weight: 1.7 g
Functions

Tool-free wire connection
Simply lift the lever, insert the conductor, and close the lever. Installation takes only a few seconds.

Suitable for all types of copper conductors
Can connect:

Solid conductors
Stranded conductors
Flexible conductors
Different conductor types together

Transparent housing
Allows visual inspection to ensure the conductor is fully inserted to the end stop.

Reliable electrical contact
CAGE CLAMP® technology ensures stable clamping force resistant to vibration and temperature changes.

Compact size
Occupies minimal space in junction boxes and lighting fixtures.

Applications
For Home Users

An excellent solution for:

Lighting installations
Socket and switch wiring
LED lighting systems
Garage, basement, and garden electrical installations
Minor electrical repair work

Allows fast and safe wire connections without complicated terminals or soldering.

For Electricians

Commonly used in:

Junction boxes
Electrical installations
Lighting systems
Commercial building projects
Renovation work

Helps significantly reduce installation time while ensuring consistent connection quality.

For Engineers and Designers

Suitable for:

Electrical projects
Automation systems
Control panel manufacturing
Industrial equipment installations
Standardized solutions compliant with EN and UL requirements
For Automation Specialists

Reliably used in:

Control cabinets
PLC systems
Sensor circuits
Signal lines
Low-power supply circuits
Advantages
Suitable for all types of copper conductors
Fast tool-free installation
Transparent housing allows visual inspection
High 32 A current rating
Compact dimensions
Reliable contact even in vibration-prone environments
Complies with UL, EN, and other international standards
Suitable for both residential and industrial installations
Reusable multiple times
Disadvantages
Higher cost compared to basic disposable connectors
Designed for copper conductors only
Installation and connection should be performed by a qualified electrician in accordance with electrical safety regulations
Frequently Asked Questions (FAQ)

Can different types of conductors be connected in the same connector?

Yes. The WAGO 221-412 allows solid, stranded, and flexible copper conductors to be connected together.

Is this connector suitable for LED lighting installations?

Yes. It is widely used for connecting LED luminaires, LED strip power supplies, and other lighting systems.

Can the connector be reused?

Yes. The lever-operated design allows conductors to be disconnected and reconnected multiple times without compromising contact quality.

Is this connector suitable for electrical panels and automation cabinets?

Yes. Thanks to its 32 A rated current, 450 V rated voltage, and CAGE CLAMP® technology, it is frequently used in electrical panels, automation cabinets, and industrial equipment.