Why Choose the TE Connectivity ZK4-4P-BL PI-Spring Terminal Block?
The TE Connectivity ZK4-4P-BL (1SNK706022R0000) is a blue four-position PI-Spring feed-through terminal block designed for efficient conductor distribution and branching in industrial control panels, machinery and electrical distribution systems. Part of the ENTRELEC SNK Series, it combines four conductor connection points within a compact single-level DIN rail terminal.
The ZK4-4P-BL uses PI-Spring connection technology, providing fast and dependable conductor termination while eliminating conventional screw tightening. Its four connected positions make it particularly useful where a single electrical potential must be distributed or branched to several conductors, reducing the need for additional terminals and helping simplify panel wiring.
With a rated cross-section of 4 mm², an IEC current rating of 32 A and an IEC voltage rating of 1000 V, the ZK4-4P-BL provides substantial electrical capability within a compact 6 mm terminal width. Its blue polyamide housing supports clear circuit identification, while standard TH35 DIN rail compatibility makes installation straightforward in modern control and automation assemblies.
Key Advantages
- Four connected positions simplify conductor distribution and branching at a single terminal point.
- PI-Spring connection technology enables fast, secure conductor termination without conventional screw tightening.
- 4 mm² rated cross-section supports common industrial power, control and signal wiring.
- 32 A IEC current rating provides dependable capacity for demanding circuits.
- 1000 V IEC voltage rating supports a broad range of industrial electrical applications.
- Compact 6 mm spacing helps maximise available DIN rail space.
- Blue housing provides convenient visual identification in organised electrical panels.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- ZK4-4P-BL PI-Spring feed-through terminal block.
- Four connection positions on one electrical circuit.
- Single-level terminal configuration.
- 4 mm² rated cross-section.
- 6 mm product spacing.
- 32 A IEC rated current.
- 1000 V IEC rated voltage.
- 30 A UL and CSA current rating.
- Rigid conductor capacity up to 6 mm².
- Flexible conductor capacity up to 4 mm².
- Blue polyamide housing with UL 94V-0 flammability rating.
- IP20 protection rating.
- DIN rail mounting for standard industrial panel assemblies.
Reliable Four-Conductor Distribution for Industrial Wiring
The TE Connectivity ZK4-4P-BL combines a feed-through terminal function with four conductor connection points on one circuit. This configuration enables power, control or signal potentials to be distributed or branched directly through one compact terminal, helping reduce additional junction points and simplify wiring layouts.
PI-Spring technology maintains reliable conductor contact through spring force and supports efficient installation in high-density control panels. Combined with its broad conductor capacity, compact DIN rail footprint and clearly identifiable blue housing, the ZK4-4P-BL provides a practical connection solution for panel builders, machine manufacturers and industrial automation engineers.
Typical Applications
- Industrial control panels and switchgear assemblies.
- Power and signal distribution circuits.
- PLC and automation control cabinets.
- Four-conductor branching and distribution points.
- Machine building and OEM electrical systems.
- Process control and instrumentation panels.
- Building automation and electrical distribution equipment.
