Phoenix Contact CLIPLINE Complete Modular Terminal Block System: ST Spring-cage Family | STTB Series —Double-level Spring-cage Connection Terminal Blocks:

When components are subjected to strong vibrations – in the rail industry, in wind power plants or in mechanical engineering – this requires maximum contact reliability. The spring-cage connection gives you a constant connection: the spring-cage always exerts the same force on the conductor, regardless of the influence of the user. The STTB Spring-cage connection terminal blocks from the CLIPLINE Complete System have been developed for universal spring-loaded conductor contacting. The high contact force guarantees a vibration-proof, gas-tight connection with long-term stability. The compact front connection ensures easy operation. All kinds of copper conductors up to 35 mm2 can be clamped without any pretreatment. Spring-cage connection terminal blocks offer a large insertion space, which means that conductors with a nominal cross section can be wired both with and without ferrules.

Features:

No restriction on cross sections when using conductors with ferrules

Low logistics costs thanks to uniform accessories

Connect up to 50 modular terminal blocks in just one step – with 2- to 50-pos. jumpers

Comprehensive range of accessories: standardized for bridging, testing, and marking

You can open the terminal point with a standard screwdriver

Insert the conductor into the clamping space and remove the screwdriver

The conductor makes contact automatically

Good electrical conductivity

Low temperature rise

Surface protected by a lead-free, galvanic nickel or tin plating

Spring element made of high-strength chromium-nickel spring steel