Why Choose the TE Connectivity ZK6-3P-OR PI-Spring Terminal Block?
The TE Connectivity ZK6-3P-OR (1SNK708031R0000) is a robust 6 mm² three-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 compact DIN rail format for fast and dependable industrial wiring.
The ZK6-3P-OR provides three connection positions on one level and one electrical circuit, allowing three conductors to be connected at a common potential. This makes the terminal particularly useful for distribution and branching applications where an additional connection point is required without installing separate terminal blocks or additional wiring bridges.
With a 6 mm² rated cross-section, 41 A IEC rated current and 1000 V IEC voltage rating, the ZK6-3P-OR delivers strong electrical performance within an 8 mm-wide terminal profile. Its orange polyamide housing provides clear circuit identification, while compatibility with TH35 DIN rails enables straightforward integration into industrial terminal assemblies.
Key Advantages
- Three-position feed-through design enables convenient distribution or branching of three conductors.
- PI-Spring connection technology combines spring operation with direct push-in wiring for suitable conductors.
- 6 mm² rated cross-section for industrial power and control wiring.
- 41 A IEC current rating and 1000 V IEC voltage rating.
- Rigid stranded conductor capacity up to 10 mm².
- Compact 8 mm spacing helps maximise available DIN rail space.
- Spring-pressure connections reduce maintenance by eliminating routine screw retightening.
- Orange housing provides clear visual differentiation within terminal assemblies.
Key Features
- TE Connectivity ENTRELEC SNK ZK series.
- ZK6-3P-OR PI-Spring terminal block.
- Feed-through / distribution function.
- 3 connection positions.
- 1 circuit and 1 level.
- 6 mm² rated cross-section.
- 41 A IEC rated current.
- 1000 V IEC rated voltage.
- 50 A UL / CSA current rating.
- 600 V UL / CSA operating voltage rating.
- 720 A short-time withstand current for 1 s.
- Flexible conductor capacity from 0.5–6 mm².
- Rigid stranded conductor capacity from 0.5–10 mm².
- 8 mm product spacing.
- DIN rail mounting on TH35-7.5 and TH35-15 rails.
- IP20 protection and UL 94V-0 housing flammability rating.
Efficient Three-Conductor Distribution for Industrial Wiring
The ZK6-3P-OR extends the functionality of a conventional feed-through terminal by providing three connection points on a common electrical circuit. This allows conductors to be distributed or branched directly at the terminal, helping reduce additional wiring and supporting cleaner, more compact control-panel layouts.
PI-Spring technology combines spring-clamp reliability with convenient direct insertion of suitably prepared conductors. Consistent spring pressure maintains dependable electrical contact without routine screw retightening, while the terminal's 8 mm profile and standard DIN rail mounting make it practical for high-density industrial installations.
Typical Applications
- Industrial control panels and switchgear assemblies.
- Three-conductor power and control distribution.
- PLC and automation control cabinets.
- Conductor branching and common-potential circuits.
- Machine building and OEM electrical systems.
- Manufacturing and process automation equipment.
