Why Choose the TE Connectivity ZK2.5-3P-WH PI-Spring Terminal Block?
The TE Connectivity ZK2.5-3P-WH (1SNK705072R0000) is a compact three-position feed-through PI-Spring terminal block designed for reliable conductor distribution and branching in industrial control panels, machinery and electrical installations. Part of the TE Connectivity ENTRELEC SNK series, it combines push-in spring connection technology with a space-saving DIN rail format for fast and dependable wiring.
Designed with three connection positions on a single level, the ZK2.5-3P-WH provides an efficient solution for distributing or branching three conductors at one electrical potential. Its PI-Spring connection system provides secure, vibration-resistant conductor retention while simplifying installation and maintenance compared with conventional screw-clamp connections.
The terminal block has a 2.5 mm² rated cross-section, 24 A IEC rated current and 1000 V IEC voltage rating. Its distinctive white polyamide housing, 5.2 mm spacing and compatibility with standard TH35 DIN rails make it well suited to compact industrial wiring assemblies where reliable circuit identification and efficient panel organisation are important.
Key Advantages
- Three-position feed-through design enables convenient distribution or branching of three conductors.
- PI-Spring connection technology provides fast and reliable conductor termination.
- 2.5 mm² rated cross-section for common industrial control and distribution wiring.
- 24 A IEC current rating and 1000 V IEC voltage rating.
- Compact 5.2 mm terminal spacing helps maximise available DIN rail space.
- White housing supports clear circuit identification and organised panel construction.
Key Features
- TE Connectivity ENTRELEC SNK ZK series.
- PI-Spring feed-through terminal block.
- Three connection positions on one level.
- White polyamide housing.
- 5.2 mm spacing.
- 24 A IEC rated current.
- 1000 V IEC voltage rating.
- Flexible conductor capacity up to 2.5 mm².
- Rigid stranded conductor capacity up to 4 mm².
- DIN rail mounting on TH35-7.5 and TH35-15 rails.
- IP20 protection rating.
- UL 94V-0 housing flammability rating.
Reliable PI-Spring Connections for Industrial Wiring
PI-Spring terminal technology combines fast conductor insertion with dependable spring-force contact pressure. The connection maintains consistent pressure on the conductor without requiring periodic screw tightening, helping provide reliable electrical continuity in industrial equipment exposed to vibration, temperature changes and routine maintenance.
The ZK2.5-3P-WH is particularly useful where three conductors need to be connected at the same electrical potential. Its compact 5.2 mm profile allows dense terminal assemblies to be created on standard DIN rail while the white housing provides a clear visual distinction for specific circuits or wiring functions.
Typical Applications
- Industrial control panels and switchgear assemblies.
- PLC and automation control cabinets.
- Power and signal distribution circuits.
- Machine building and OEM electrical systems.
- Conductor branching and distribution applications.
- Manufacturing and process automation equipment.
