Through-clamp terminal connectors that speed up commercial wiring while keeping installations tidy. Electricians and installation teams gain confidence from reliable, repeatable connections and compact form. Is WAGO 221 Through Clamp Connector the best choice for your next commercial job?
⚡ At a Glance
- • Connection Type: Tool-free lever through-clamp for two conductors up to 4 mm²
- • Best for: Commercial electricians and professional installers working in confined spaces
- • Not ideal for: DIY users or non-professional home wiring applications
Single-pole through connector with a lever clamp and compact body. Supplied as a pack of 10 for repeatable commercial installations.
Faster terminations - with a tool-free lever clamp
Lever action opens the clamp without tools and secures conductors mechanically, accepting two conductors and supporting up to 4 mm² cross-section as stated. Repeated lever operation produces consistent contact pressure across terminations.
Quicker wiring on site and cleaner handovers thanks to rapid, repeatable connections. Reduced time spent on repetitive screwing and checking.
Space-saving layout - with a compact single-pole through design
Through-clamp construction allows conductors to pass straight through while the compact housing minimises lateral space usage. Tidy wire routing is easier where multiple connectors sit side-by-side.
Neat installations in crowded junction boxes and control panels, with reduced risk of crossed or tangled conductors. Facilitates organised cable runs for serviceability.
Flexible mounting options - with multiple fixing methods
Several mounting options are supported including screw fixing, locking base, TS35/15 rail mounting, glue, tying and hanging, enabling secure placement in varied enclosures. Accessories are available for multi-pole and fixed-position setups.
Adaptable installation on different surfaces and panels without ad-hoc fixes. Useful across a range of commercial applications where secure mounting matters.
✨ The 4 Key Reasons for WAGO 221 Through Clamp Connector
- Tool-free lever - Speeds wiring, reduces time on repetitive installation tasks
- Dual-conductor capacity - Handles two conductors up to 4 mm² for standard wiring needs
- Compact footprint - Fits into crowded junction boxes and tight wiring channels
- Multiple mounting options - Allows screw, rail or adhesive mounting for varied installations
📋 Technical Details at a Glance
- Category: Terminal connector
- Brand: WAGO
- Model: 221-2411 / 221 series
- Type: Through clamp connector
- Poles: Single pole
❓ Frequently Asked Questions
Q: Can non-professional users fit these connectors?
A: No, use is restricted to professionals in the commercial sector according to the supplied information.
Q: Is a tool required to make connections?
A: No, a tool-free lever enables fast, effort-free wire connections for two conductors up to 4 mm².
Q: What mounting methods are supported?
A: Multiple mounting options are listed, including screw fixing, locking base, TS35/15 rail mounting, glue, tying and hanging.
🏆 Our Verdict
Ideal for commercial electricians and installation teams who need quick, reliable terminations in tight spaces. Tool-free lever clamps, compact single-pole through design and multiple mounting options make installations neater and faster. Pack format and durable clamping deliver clear long-term value for repeated commercial wiring tasks.
