Why Choose the TE Connectivity ZK2.5-RD PI-Spring Terminal Block?
The TE Connectivity ZK2.5-RD, part number 1SNK705062R0000, is a compact and reliable PI-Spring feed-through terminal block designed for conductor connections in industrial control panels, machinery and electrical distribution systems. As part of the TE Connectivity ENTRELEC SNK Series, it combines space-efficient DIN rail installation with fast spring-clamp connection technology.
PI-Spring technology combines Push-In and spring connection methods to simplify wiring while maintaining dependable contact pressure. Solid conductors and suitably prepared stranded conductors can be inserted directly, while conventional stranded conductors can be connected using a screwdriver-assisted spring mode. This makes the ZK2.5-RD well suited to panel building and automation applications where installation speed and connection reliability are important.
With an IEC rated voltage of 1000 V, an IEC rated current of 24 A and compact 5.2 mm spacing, the ZK2.5-RD delivers high electrical performance while conserving valuable DIN rail space. Its distinctive red polyamide housing provides clear visual identification within terminal assemblies.
Key Advantages
- Compact PI-Spring feed-through terminal block for industrial wiring.
- 1000 V IEC voltage rating for demanding electrical installations.
- 24 A IEC current rating in a space-efficient terminal design.
- Compact 5.2 mm spacing helps maximise DIN rail installation density.
- PI-Spring technology supports fast Push-In and spring-mode conductor connection.
- Red housing provides clear visual identification within terminal assemblies.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- PI-Spring connection technology.
- Single-level feed-through terminal block.
- 2 positions and 1 electrical circuit.
- 5.2 mm product spacing.
- Flexible conductor capacity from 0.22–2.5 mm².
- Rigid stranded conductor capacity from 0.2–4 mm².
- Compatible with TH35-7.5 and TH35-15 DIN rails.
- Red polyamide housing with UL 94V-0 flammability rating.
- IP20 ingress protection rating.
- Operating temperature range from -55 to 110 °C.
Fast and Reliable PI-Spring Connection Technology
PI-Spring technology combines the advantages of Push-In and conventional spring connection methods. Prepared stranded conductors and solid wires can be inserted directly for rapid installation, while a screwdriver can be used to open the spring when connecting or removing other conductor types.
The ENTRELEC SNK Series is designed for compact DIN rail assemblies and efficient panel wiring. The ZK2.5-RD combines these characteristics with high electrical ratings, broad conductor compatibility and a clearly identifiable red housing, making it a versatile connection solution for industrial electrical systems.
Typical Applications
- Industrial electrical control panels.
- Machine building and OEM equipment.
- Factory automation systems.
- Power and signal distribution assemblies.
- Motor control cabinets.
- DIN rail electrical installations.
