Electrical failures — short-circuit and wire-disconnection — are mostly caused by defective wire terminations because of operator skills. Push-in CAGE CLAMP is the universal connection technology for all conductor types. It provides the simplicity of push-in terminations, ensuring long-term contact quality independent of operator skills and is designed for the harshest of environments, with steady vibrations and high temperature variations.

Vibration- and shock-proof, and maintenance free

The vibration-proof properties of Push-in CAGE CLAMP connections have been tested and successfully validated in a vibration test to IEC/EN 60068-2-6. In this test, a frequency band up to 2000Hz, at different accelerations up to 20g and different amplitudes up to 20 mm, is passed continuously in three axes.

Additionally, international authorities have placed extremely demanding requirements on electrical installations in rolling stock (IEC/EN 61373), but multiple marine agencies (e.g. GL, LR and DNV) have declared that Push-in CAGE CLAMP meets their lofty approval standards. Maintenance-free operation results from excellent long-term consistency of the electrical and mechanical properties of the clamping connection — or more precisely, the clamping unit.

For all conductor types

Push-in CAGE CLAMP spring pressure terminals are suitable for all conductor types — solid, stranded and fine-stranded conductors — as well as fine-stranded conductors with ferrules or pin terminals, and tip-bonded conductors. Moreover, all conductors can be connected without any preparation. Ferrules and pin terminals can be used, but are not mandatory.

High contact quality

In addition to correctly selecting the materials and surface coating, the contact pressure determines the quality of the clamping connection. The conductor is pressed against the current bar in a predefined contact area without damage. The contact zone is deliberately designed to be small and curved, not flat, in order to exert high contact pressure, and the clamping force adjusts automatically to the conductor size. The clamp dynamically compensates for conductor deformation due to flow effects.

A superior design eliminates the risk of a loose connection — contact breaks are excluded. The conductor is embedded in a soft tin layer, and the transition point is resistant to corrosive infiltration. The long-term consistency of the contact resistance is ensured, even in aggressive atmospheres.

Now with lever!

Pull the lever up, insert a conductor and push the lever back down. The ingeniously simple connection technology that has made WAGO’s 221 Series Junction Box Connector a popular all-purpose solution is now DIN-rail ready as the newest variant to WAGO’s trusted TOPJOBS Rail-Mount Terminal Block family. This means that even in the control cabinet, conductors can now be easily connected by hand and removed without tools. The user benefits from simple and intuitive use, especially for in-field wiring.

The terminal point is clearly marked by the open lever, which reduces the risk of forgetting terminal points when wiring or connecting conductors incorrectly. In addition, both hands remain free for wiring because the clamping unit does not need to be kept open with an operating tool. This convenience facilitates connecting difficult-to-bend conductors with large cross sections.

For more information on Push-in CAGE CLAMP, visit

Charlotte Pordage is Editor of Utility magazine, a position she has held since November 2018. She joined the team as an Associate Editor in October 2017, after sharpening her writing and editing skills across a range of print and digital publications. Charlotte graduated from Royal Holloway, University of London, in 2011 with joint honours in English and Latin. When she's not putting together Australia's only dedicated utility magazine, she can usually be found riding her horse or curled up with a good book.

©2021 utilitymagazine. All rights reserved


We're not around right now. But you can send us an email and we'll get back to you, asap.


Log in with your credentials

Forgot your details?