Why Choose the TE Connectivity ZK2.5-PE-4P 1SNK705152R0000 PI-Spring Ground Terminal Block?
The TE Connectivity ZK2.5-PE-4P 1SNK705152R0000 is a 2.5 mm² four-position PI-Spring ground terminal block from the ENTRELEC SNK Series, designed to provide dependable protective-earth connections in industrial control panels and electrical equipment. Its distinctive green-and-yellow housing provides immediate identification of the protective-earth function within organised DIN rail terminal assemblies.
The ZK2.5-PE-4P combines four conductor positions with a compact 5.2 mm pitch and a single-level design. Its PI-Spring connection system accommodates flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm², providing flexibility for professionally prepared industrial wiring.
Designed specifically for grounding applications, the terminal provides a 300 A short-time withstand current for 1 s, a maximum dielectric withstand voltage of 2200 V and an 8000 V IEC impulse withstand rating. Its polyamide housing, IP20 rating and UL 94V-0 flammability classification support dependable use in industrial environments.
Key Advantages
- Four-position protective-earth terminal enables multiple conductors to be incorporated into a compact grounding arrangement.
- PI-Spring connection technology provides efficient spring-clamp conductor termination.
- Compact 5.2 mm pitch helps conserve valuable DIN rail space.
- Green-and-yellow housing provides clear visual identification of the protective-earth function.
- Accepts flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm².
- 300 A short-time withstand current for 1 s.
- Screwless rail-contact design provides a direct protective-earth interface with the mounting rail.
- Compatible with standard TH35-7.5 and TH35-15 DIN rails.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- ZK2.5-PE-4P PI-Spring ground terminal block.
- 2.5 mm² rated cross-section.
- Green and yellow protective-earth identification.
- PI-Spring / spring terminal connection.
- Four conductor positions.
- One circuit and one level.
- 5.2 mm product spacing.
- 300 A short-time withstand current at 1 s.
- 2200 V maximum dielectric withstand voltage.
- 8000 V IEC impulse withstand voltage.
- Screwless DIN rail contact for protective-earth connection.
- Durable polyamide housing.
- IP20 protection rating.
- UL 94V-0 flammability rating.
- Compatible with TH35-15 and TH35-7.5 DIN rails.
Reliable Protective-Earth Connections with PI-Spring Technology
The ZK2.5-PE-4P is designed specifically for protective-earth wiring and uses a screwless rail contact to establish the grounding connection with the DIN rail. The rail-contact system is designed to operate independently of the conductor-termination process, while secure snap-on mounting helps provide a reliable mechanical interface with the rail.
Its four-position configuration allows multiple protective-earth conductors to be organised within a single 5.2 mm wide terminal, while PI-Spring technology supports efficient connection of conductors up to 4 mm² depending on conductor type. The terminal profile is aligned with compatible ZK2.5-4P terminals, helping create orderly mixed-function terminal assemblies.
Typical Applications
- Protective-earth connections in industrial control panels.
- Machine and equipment grounding circuits.
- PLC and automation cabinets.
- Motor control centres and switchgear.
- Process control and instrumentation systems.
- Industrial power and signal equipment.
- OEM machinery and manufacturing equipment.
- DIN rail assemblies requiring compact four-position protective-earth terminals.
