Wago's WINSTA Connection System
WINSTA is designed as a modular wiring connection system for electrical distribution within commercial buildings. It provides the ideal electrical interface in North American applications including high-bay lighting, shipboard electrical distribution, RV modular wiring, and a host of industrial applications from pluggable motor lead connections to conveyor system power distribution. The WINSTA family offers individual components such as plugs and sockets with strain relief housings for the connection of multi-conductor cables; connectors for discreet wires, snap-in devices for flush mounting in panel openings or fixture ends; and distribution connectors for "tapping off", or multiplying potentials.
Learn more at http://www.wago.us/products/327.htm