Why Choose the TE Connectivity ZK4-OR PI-Spring Feed-Through Terminal Block?
The TE Connectivity ZK4-OR 1SNK706030R0000 is an orange PI-Spring feed-through terminal block from the ENTRELEC SNK Series, designed for fast and reliable conductor termination in industrial control, automation and power distribution systems. Its push-in spring connection technology combines efficient panel wiring with consistent electrical contact in a compact DIN rail format.
The ZK4-OR provides two connection positions within one circuit and one level, with a compact 6 mm pitch. Its PI-Spring design enables direct insertion of suitable rigid conductors while flexible conductors can be connected using the spring operating mechanism, helping reduce installation time and simplify maintenance.
Rated at 32 A and 1,000 V under IEC specifications, the ZK4-OR accommodates rigid stranded conductors from 0.5–6 mm² and flexible conductors from 0.5–4 mm². Its orange polyamide housing, IP20 protection and UL 94V-0 flammability rating make it a robust solution for clearly identified industrial power and signal circuits.
Key Advantages
- PI-Spring push-in technology supports fast and reliable conductor termination.
- 32 A IEC current rating provides substantial capacity within a compact terminal format.
- 1,000 V IEC voltage rating supports demanding industrial electrical systems.
- Accepts rigid stranded conductors up to 6 mm².
- Compact 6 mm pitch helps maximise available DIN rail space.
- Orange housing provides clear visual identification within multi-circuit terminal assemblies.
- Compatible with both TH35-7.5 and TH35-15 DIN rails.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- ZK4-OR PI-Spring terminal block.
- Feed-through block function.
- Push-in / PI-Spring connection technology.
- 2 connection positions.
- 1 circuit and 1 level.
- 2.9 mm diameter gauge type.
- 6 mm product spacing.
- 4 mm² rated cross-section.
- 32 A IEC rated current.
- 1,000 V IEC rated voltage.
- 30 A UL and CSA rated current.
- 600 V CSA voltage rating.
- 8,000 V IEC impulse withstand voltage.
- 480 A short-time withstand current at 1 s.
- Orange polyamide housing.
- IP20 protection rating.
- UL 94V-0 flammability rating.
Reliable High-Performance PI-Spring Connectivity
The TE Connectivity ZK4-OR combines the speed of PI-Spring push-in termination with the electrical performance required for industrial power and control circuits. Rigid conductors up to 6 mm² can be accommodated, while the 32 A IEC current rating and 1,000 V IEC voltage rating make the terminal suitable for demanding electrical distribution applications.
Its 6 mm footprint helps maintain high wiring density without compromising conductor capacity. The orange housing can also assist with visual circuit identification, while DIN rail compatibility, IP20 finger protection and a wide -55 to +110 °C operating temperature range support dependable installation in industrial control and automation environments.
Typical Applications
- Industrial control panels and automation cabinets.
- Power and signal distribution circuits.
- PLC and I/O wiring systems.
- Machine building and production equipment.
- Motor control and electrical distribution panels.
- Process control and instrumentation systems.
- High-density DIN rail terminal assemblies.
