Why Choose the TE Connectivity ZK2.5-WH 1SNK705065R0000 PI-Spring Terminal Block?
The TE Connectivity ZK2.5-WH 1SNK705065R0000 is a white PI-Spring feed-through terminal block from the ENTRELEC SNK Series, designed for fast and reliable DIN rail wiring in industrial control and automation systems. Its spring-clamp connection technology provides secure conductor termination without the conventional screw connection used by many terminal blocks.
With a compact 5.2 mm pitch, two positions, one circuit and a single-level configuration, the ZK2.5-WH helps create space-efficient terminal assemblies. It accepts flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm², while ferrules can also be accommodated for professionally prepared panel wiring.
The terminal provides an IEC current rating of 24 A and an IEC voltage rating of 1000 V, together with an 8000 V impulse withstand rating. Its polyamide housing, IP20 rating, UL 94V-0 flammability classification and -55 to +110 °C operating temperature range support dependable use in demanding industrial environments.
Key Advantages
- PI-Spring connection technology enables efficient conductor termination without conventional screw tightening.
- Compact 5.2 mm pitch helps maximise available DIN rail space.
- 24 A IEC current rating for industrial control and distribution circuits.
- 1000 V IEC voltage rating provides substantial electrical capability in a compact terminal.
- Accepts flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm².
- 300 A short-time withstand current for 1 s.
- White housing supports clear identification within colour-coded terminal assemblies.
- Compatible with standard TH35-7.5 and TH35-15 DIN rails.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- ZK2.5-WH PI-Spring feed-through terminal block.
- White polyamide housing.
- PI-Spring connection technology.
- Single-level, two-position, one-circuit configuration.
- 5.2 mm product spacing.
- 24 A IEC current rating.
- 20 A UL and CSA current ratings.
- 1000 V IEC voltage rating.
- 600 V CSA voltage rating.
- 600 V maximum UL/CSA main-circuit operating voltage.
- 300 A short-time withstand current at 1 s.
- 8000 V IEC impulse withstand voltage.
- 2200 V maximum dielectric withstand voltage.
- IP20 ingress protection.
- UL 94V-0 flammability rating.
- DIN rail mounting for TH35-15 and TH35-7.5 rails.
- Supplied in a pack quantity of 50.
Reliable PI-Spring Connections for Efficient Panel Wiring
The PI-Spring connection system provides a practical alternative to traditional screw terminals by using spring force to maintain conductor contact. This helps streamline panel wiring while providing consistent conductor retention. The ZK2.5-WH accommodates flexible conductors up to 2.5 mm² and rigid stranded conductors up to 4 mm², making it suitable for a broad range of control and power wiring requirements.
Its 5.2 mm modular pitch allows dense terminal arrangements without sacrificing electrical performance, while the 24 A IEC current rating and 1000 V IEC voltage rating provide strong capability for its compact size. Standard DIN rail mounting makes the terminal straightforward to integrate with other ENTRELEC SNK Series components.
Typical Applications
- Industrial control panels and automation cabinets.
- PLC and control-system wiring.
- Machine building and OEM electrical equipment.
- Power and signal distribution circuits.
- Process control and instrumentation systems.
- Building automation and electrical controls.
- Manufacturing and production equipment.
- DIN rail assemblies requiring white PI-Spring feed-through terminals.
