Why Choose the TE Connectivity ZK2.5-3P-BK PI-Spring Feed-Through Terminal Block?
The TE Connectivity ZK2.5-3P-BK 1SNK705073R0000 is a black PI-Spring feed-through terminal block designed for fast, secure conductor termination and compact three-conductor distribution in industrial control, automation and electrical panel applications. Part of the TE Connectivity ENTRELEC SNK Series, it combines spring connection technology with a space-saving DIN rail format.
The ZK2.5-3P-BK provides three connection positions on a single circuit and single level, allowing three conductors to be connected, distributed or branched through one terminal. Its narrow 5.2 mm pitch helps maximise wiring density, while PI-Spring technology supports rapid installation and consistent spring contact pressure.
With an IEC current rating of 24 A and IEC voltage rating of 1,000 V, the ZK2.5-3P-BK delivers strong electrical performance for its compact size. It accepts flexible conductors up to 2.5 mm² and rigid stranded conductors up to 4 mm², making it suitable for a broad range of industrial power and signal circuits.
Key Advantages
- Three connection positions allow convenient distribution or branching of three conductors.
- PI-Spring technology supports fast and dependable conductor termination.
- Compact 5.2 mm pitch helps maximise available DIN rail space.
- 24 A IEC current rating supports industrial power and signal circuits.
- 1,000 V IEC voltage rating provides excellent electrical capability.
- Accepts rigid stranded conductors up to 4 mm².
- Black housing provides clear visual differentiation within organised terminal assemblies.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- ZK2.5-3P-BK PI-Spring terminal block.
- Feed-through block function.
- 3 connection positions.
- 1 circuit and 1 level.
- A2 / 2.3 mm diameter gauge type.
- 5.2 mm product spacing.
- 24 A IEC rated current.
- 1,000 V IEC rated voltage.
- 20 A UL and CSA rated current.
- 600 V CSA voltage rating.
- 8,000 V IEC impulse withstand voltage.
- 300 A short-time withstand current at 1 s.
- Black polyamide housing.
- Compatible with TH35-7.5 and TH35-15 DIN rails.
Reliable Three-Conductor PI-Spring Connectivity
The TE Connectivity ZK2.5-3P-BK extends the functionality of the ZK2.5 terminal platform by providing three conductor connection positions within one compact terminal. This arrangement is useful for distributing or branching a common electrical potential without installing an additional terminal and jumper arrangement.
PI-Spring technology provides consistent spring contact pressure while supporting efficient wiring, and the narrow 5.2 mm footprint helps conserve DIN rail space. With a 24 A IEC current rating, 1,000 V IEC voltage rating and support for rigid stranded conductors up to 4 mm², the ZK2.5-3P-BK is well suited to compact industrial control and distribution systems.
Typical Applications
- Industrial control panels and automation cabinets.
- Three-conductor distribution and branching circuits.
- PLC and I/O wiring systems.
- Power and signal distribution.
- Machine building and factory automation.
- Process control and instrumentation systems.
- High-density DIN rail terminal assemblies.
