Why Choose the TE Connectivity ZK2.5-4P-YL PI-Spring Feed-Through Terminal Block?
The TE Connectivity ZK2.5-4P-YL 1SNK705074R0000 is a yellow PI-Spring feed-through terminal block designed for compact four-conductor connection, distribution and branching in industrial control, automation and electrical panel applications. Part of the TE Connectivity ENTRELEC SNK Series, it combines efficient spring termination with a high-density DIN rail format.
The ZK2.5-4P-YL provides four connection positions within a single circuit and single level, allowing up to four conductors to share a common electrical connection. Its narrow 5.2 mm pitch helps conserve DIN rail space, while PI-Spring technology provides consistent spring contact pressure for reliable conductor termination.
With a rated cross-section of 2.5 mm², an IEC current rating of 24 A and an IEC voltage rating of 1,000 V, the ZK2.5-4P-YL provides strong electrical performance in a compact package. It accepts flexible conductors up to 2.5 mm² and rigid stranded conductors up to 4 mm², making it suitable for both power and signal distribution circuits.
Key Advantages
- Four connection positions simplify conductor distribution and branching.
- PI-Spring technology provides fast and reliable spring termination.
- Compact 5.2 mm pitch supports high-density DIN rail installations.
- 24 A IEC current rating for industrial power and signal circuits.
- 1,000 V IEC voltage rating provides excellent electrical capability.
- Accepts rigid stranded conductors up to 4 mm².
- Yellow housing provides clear visual differentiation within organised terminal assemblies.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- ZK2.5-4P-YL PI-Spring terminal block.
- Feed-through block function.
- 4 connection positions.
- 1 circuit and 1 level.
- A2 / 2.3 mm diameter gauge type.
- 5.2 mm product spacing.
- 2.5 mm² rated cross-section.
- 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.
- Yellow polyamide housing.
- IP20 protection rating.
- UL 94V-0 flammability rating.
Reliable Four-Conductor PI-Spring Connectivity
The TE Connectivity ZK2.5-4P-YL combines the electrical characteristics of the ZK2.5 platform with the added capability to distribute or branch four conductors. This four-position configuration can reduce the need for separate terminal blocks and jumper arrangements where multiple conductors need to share a common electrical potential.
PI-Spring technology provides consistent spring contact pressure while supporting efficient panel wiring, and the narrow 5.2 mm footprint helps maximise DIN rail capacity. With a 24 A IEC current rating, 1,000 V IEC voltage rating and rigid stranded conductor capacity up to 4 mm², the ZK2.5-4P-YL is well suited to compact industrial power, control and signal distribution systems.
Typical Applications
- Industrial control panels and automation cabinets.
- Four-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.
