Why Choose the TE Connectivity ZK4-4P PI-Spring Terminal Block?
The TE Connectivity ZK4-4P (1SNK706012R0000) is a compact four-position PI-Spring feed-through terminal block designed for efficient conductor distribution and branching in industrial control panels, machinery and automation systems. Part of the TE Connectivity ENTRELEC SNK series, it combines push-in and spring connection technology with a high-density DIN rail format for fast, secure and dependable wiring.
The ZK4-4P provides four connection positions on a single electrical circuit, allowing up to four conductors to be connected or branched through one terminal block. PI-Spring technology combines direct push-in connection for suitably prepared conductors with spring-mode operation for other conductor types, helping reduce wiring time while maintaining reliable contact pressure.
With a 4 mm² rated cross-section, 32 A IEC rated current and 1000 V IEC voltage rating, the ZK4-4P provides strong electrical performance in a compact 6 mm-wide format. Its grey polyamide housing, IP20 protection and compatibility with standard TH35 DIN rails make it suitable for power and signal circuits in demanding industrial installations.
Key Advantages
- Four-position feed-through design enables convenient distribution or branching of up to four conductors.
- PI-Spring connection technology combines push-in and spring connection modes for efficient wiring.
- 4 mm² rated cross-section for industrial power and signal circuits.
- 32 A IEC current rating and 1000 V IEC voltage rating.
- Compact 6 mm terminal spacing helps maximise available DIN rail space.
- Rigid stranded conductor capacity up to 6 mm².
- Spring-pressure connections eliminate the need for routine screw retightening.
- Grey housing provides a standard neutral colour for general-purpose feed-through circuits.
Key Features
- TE Connectivity ENTRELEC SNK ZK series.
- PI-Spring feed-through terminal block.
- 4 connection positions.
- 1 circuit and 1 level.
- 4 mm² rated cross-section.
- 32 A IEC rated current.
- 1000 V IEC rated voltage.
- 30 A UL / CSA current rating.
- 600 V UL / CSA operating voltage.
- 480 A short-time withstand current for 1 s.
- Flexible conductor capacity up to 4 mm².
- Rigid stranded conductor capacity up to 6 mm².
- 6 mm product spacing.
- DIN rail mounting on TH35-7.5 and TH35-15 rails.
- IP20 protection and UL 94V-0 flammability rating.
Efficient Four-Conductor Distribution for Industrial Wiring
The ZK4-4P is designed to simplify applications where several conductors need to share the same electrical potential. Its four connection positions allow distribution or branching of up to four conductors within one compact terminal, reducing the number of separate terminals and additional interconnections required in complex control-panel wiring.
TE Connectivity PI-Spring technology combines the speed of push-in termination with the versatility of a spring connection. Prepared stranded conductors with ferrules and suitable rigid conductors can be inserted directly, while spring-mode operation simplifies connection and removal of other conductor types. Consistent spring pressure helps maintain dependable electrical contact in industrial environments subject to vibration and temperature variation.
Typical Applications
- Industrial control panels and switchgear assemblies.
- Power and signal distribution circuits.
- PLC and automation control cabinets.
- Four-conductor branching and distribution circuits.
- Machine building and OEM electrical systems.
- Manufacturing and process automation equipment.
