Description
Product Overview
The WAGO 221-425 Green Splicing Connector belongs to WAGO’s renowned Green Range, engineered for electricians, contractors, and DIY enthusiasts who demand quick, tool‑free terminations. Featuring a robust cage‑clamp technology, the connector securely grips copper conductors ranging from 24 to 12 AWG, whether solid, stranded, or fine‑stranded. The lever actuation mechanism opens the clamp with a single hand motion, allowing insertion of the wire without stripping, and then closes firmly to create a low‑resistance, vibration‑resistant joint. The transparent housing offers a clear view of the connection, ensuring that the conductor is fully seated and the clamp is properly engaged. Rated for a nominal voltage of 450 V (maximum 600 V) and a current capacity of 20 A to 32 A, this connector meets demanding industrial standards while maintaining a compact footprint of 11 mm strip length. Packaged in a convenient 25‑piece box, it is ideal for batch installations in panels, junction boxes, and distribution boards.
Usage
Designed for a wide range of applications, the 221-425 connector excels in residential lighting circuits, commercial building automation, and industrial control panels. In residential settings, electricians use it to terminate lighting fixtures, outlet circuits, and switch loops, benefiting from the lever’s speed and the transparent housing that confirms a proper connection without the need for a screwdriver. In commercial environments, the connector simplifies complex wiring harnesses for HVAC systems, fire alarm panels, and security installations, where multiple conductors must be joined reliably and quickly. Industrial users appreciate its ability to handle higher current loads, making it suitable for motor control circuits, sensor networks, and power distribution modules. The tool‑free operation reduces installation time, minimizes the risk of wire damage, and enhances safety on the job site. Because the connector accepts both solid and stranded wires, it adapts to legacy wiring and modern flexible cables alike, providing a versatile solution for retrofits and new construction alike.
Why Choose Us
Choosing the WAGO 221-425 means selecting a product backed by decades of engineering excellence and rigorous quality control. Each connector undergoes comprehensive testing for electrical resistance, temperature rise, and mechanical endurance, ensuring consistent performance across the entire batch. The green color coding signals the connector’s suitability for low‑voltage applications, while the transparent housing adds an extra layer of confidence by allowing visual verification of the crimp. WAGO’s commitment to sustainability is reflected in the recyclable materials used for the housing and the efficient manufacturing processes that reduce waste. Additionally, the company offers responsive technical support, detailed installation guides, and a warranty that covers material defects, giving customers peace of mind throughout the product lifecycle. By integrating this connector into your projects, you benefit from reduced installation time, lower labor costs, and a reliable joint that stands up to vibration, temperature fluctuations, and long‑term electrical stress.
Key Features
- Lever‑actuated design enables tool‑free, one‑handed wiring for faster installations.
- Transparent housing provides instant visual confirmation of a secure connection.
- Supports 24‑12 AWG solid, stranded, and fine‑stranded copper conductors for versatile use.
- Rated up to 450 V nominal and 32 A, delivering reliable performance in demanding applications.
- Includes comprehensive after‑sales support and a warranty for added customer confidence.
FAQ
Can I use the connector with aluminum conductors?
No. The 221-425 is specifically designed for copper conductors. Using aluminum may compromise the connection integrity and violate safety standards.
Is the transparent housing resistant to UV exposure?
The housing material is UV‑stable for indoor applications. For outdoor installations, additional protection or a UV‑rated enclosure is recommended.
How many times can I open and close the lever without degrading performance?
The lever mechanism is engineered for thousands of cycles. In typical use, it will maintain its clamping force well beyond the lifespan of the installation.
What is the recommended torque for the lever when closing the connector?
No torque measurement is required. The lever provides a consistent closing force that ensures a reliable connection without the need for additional tools.
Can the connector be used in a DIN rail mounted terminal block?
Yes, the compact size and low profile make it suitable for DIN rail applications, provided the terminal block is compatible with the connector’s dimensions and rating.








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