ST spring terminals - spring-cage connection terminal blocks
Spring-cage terminals blocks from Phoenix Contact have been developed for universal spring-loaded conductor contacting. The contact force is independent of the user and creates a vibration-proof, gas-tight connection with long-term stability. The connection point is opened with a standard screwdriver.
After the conductor has been inserted into the terminal compartment, the screwdriver is removed and the conductor automatically makes contact.
Material properties
All metal parts of the spring-cage terminal blocks are made of corrosion-free materials. The current-carrying metals consist of high-grade copper alloys. Especially advantageous is the low temperature rise due to good electrical conductivity.
The surface is protected by a lead-free, galvanic nickel or tin plating. The contact force for the spring-cage connection is applied by a spring element made of high-strength chromium-nickel spring steel.
This elastic plastic with high impact strength is halogen-free and UV-resistant. Further characteristics are the good tropical and termite resistance, high chemical resistance and the excellent aging characteristics.
Polyamide 6.6 can be used with operating temperatures up to 130°C and is certified for the inflammability class V0 in accordance with UL 94.