WAGO 221 LEVER-NUTS 175pc Wire Connector Assortment Pack - Compact

Our review of the WAGO 221 LEVER-NUTS 175pc Wire Connector Assortment Pack finds it ideal for electricians, maintenance techs, and serious DIYers who want faster, more reliable wire connections. The biggest reason to buy is the combination of clear, tool-free lever action and a space-saving design that replaces fiddly wire nuts and speeds up multi-conductor splices. In testing, the assortment covers most common jobs and the transparent housing makes it easy to confirm full wire insertion at a glance.

Key Features

• Assorted sizes: Includes 100x 221-412, 50x 221-413, and 25x 221-415 so users have the right connector for 2-, 3-, and 5-conductor joins without guessing.
• Wide gauge range: Terminates 24-12 AWG, allowing solid, stranded, and flexible copper wires to be joined in a single connector type for most residential and light commercial wiring.
• Transparent housing: The clear body lets installers visually inspect strip length and confirm complete wire insertion for faster, more confident work.
• Space saving: The 221 series design minimizes space consumption in junction boxes by up to 40% compared to the 222 series, which helps when box real estate is tight.
• Genuine build quality: Made in Germany and UL Listed, these connectors feel robust and hold wires securely under repeated use.

Who It's For

The 175pc pack is best for electricians, maintenance departments, and avid DIYers who do frequent wiring and want an assortment that covers most common splice needs without constant reordering. The pack is especially useful where speed and visual confirmation are priorities, such as retrofit lighting, outlet changes, and small control panels.

Those who rarely do electrical work or only need one connector size may prefer a smaller pack to avoid excess inventory. If a project requires termination outside the 24-12 AWG range or special insulation types, check compatibility before purchasing.

Pros & Cons

Pros

• Easy, tool-free lever action that cuts installation time and reduces hand fatigue.
• Transparent housings allow quick verification of solid connections and proper strip length.
• Assortment includes three practical sizes so users rarely run out of the needed connector type on a job.
• Compact design saves up to 40% junction box space versus previous series, aiding neat installations.

Cons

• Pack size may be overkill for homeowners who only need a handful of connectors for a single project.
• Not intended for wire gauges outside the 24-12 AWG range, so specialty cables require other products.

Specifications

Product type	Lever wire connector assortment
Contents	100x 221-412, 50x 221-413, 25x 221-415
Conductors per connector	2, 3, and 5 conductor variants
Wire gauge	Terminates 24-12 AWG
Inspection	Transparent housing for visual wire insertion check
Certifications	UL Listed
Origin	Made in Germany

Our Verdict

The WAGO 221 175pc assortment is a practical, time-saving kit for professionals and committed DIYers who want reliable, easy-to-inspect connections across common wire gauges. Its compact design and genuine build quality make it a good value for those who do frequent wiring, though occasional users may prefer smaller packs.

Frequently Asked Questions

Can these connect both solid and stranded wire?
Yes. The 221 LEVER-NUTS are designed to accept combinations of solid, stranded, and flexible copper wires.

Do they fit in standard junction boxes?
Yes. The 221 series minimizes space consumption by about 40% compared to the 222 series, helping them fit into tight junction boxes.

How can I confirm a proper connection?
The transparent housing lets you visually inspect strip length and confirm the conductor is fully inserted before closing the lever.