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1snk705250r0000 – zk2.5-d1-pe pi-spring clamp – green/yell
TE Connectivity ZK2.5-D1-PE 1SNK705250R0000 is a green-and-yellow double-deck PI-Spring protective-earth DIN rail terminal block with one ground circuit, four positions, 5.2 mm spacing and conductor capacity up to 4 mm².
£4.33
Why Choose the TE Connectivity ZK2.5-D1-PE PI-Spring Ground Terminal Block?
The TE Connectivity ZK2.5-D1-PE (1SNK705250R0000) is a compact double-deck PI-Spring ground terminal block designed to provide reliable protective-earth connections in industrial control panels, machinery and electrical distribution systems. Part of the TE Connectivity ENTRELEC SNK series, this green-and-yellow terminal combines spring connection technology with a screwless rail contact for dependable grounding on standard DIN rails.
The ZK2.5-D1-PE incorporates one protective-earth circuit across a two-level, four-position configuration. Its screwless rail contact is designed to provide a secure connection to the mounting rail without relying on operator-applied tightening torque, helping improve installation consistency and electrical safety. The terminal profile is aligned with ZK2.5-D2 double-deck terminals, allowing coordinated installation within high-density terminal assemblies.
With a compact 5.2 mm spacing, conductor capacity up to 4 mm² for rigid stranded conductors and a short-time withstand current rating of 300 A for 1 s, the ZK2.5-D1-PE provides a robust protective-earth connection while minimising DIN rail space. Its standard green-and-yellow housing makes the protective-earth function immediately identifiable during installation, inspection and maintenance.
Key Advantages
- Dedicated protective-earth terminal block for industrial grounding applications.
- PI-Spring connection technology provides secure conductor termination without conventional terminal screws.
- Screwless rail contact provides a dependable connection to the DIN rail.
- Double-deck profile supports space-efficient terminal assemblies.
- Compact 5.2 mm spacing helps maximise available DIN rail space.
- Accepts rigid stranded conductors up to 4 mm².
- Green-and-yellow housing provides immediate protective-earth identification.
- Profile aligned with ZK2.5-D2 terminals for organised panel construction.
Key Features
- TE Connectivity ENTRELEC SNK ZK series.
- ZK2.5-D1-PE protective-earth terminal block.
- PI-Spring connection technology.
- 1 ground circuit.
- 2 levels and 4 positions.
- 5.2 mm product spacing.
- 300 A short-time withstand current for 1 s.
- 8 kV IEC impulse withstand voltage.
- Flexible conductor capacity from 0.22–2.5 mm².
- Rigid stranded conductor capacity from 0.2–4 mm².
- Compatible with TH35-7.5 and TH35-15 DIN rails.
- IP20 protection rating.
- UL 94V-0 polyamide housing.
Reliable Protective-Earth Connections for Industrial Wiring
Protective-earth terminal blocks provide the essential connection between equipment conductors and the grounded DIN rail or protective-earth system. The ZK2.5-D1-PE uses a screwless rail contact designed to create a secure protective-earth connection when the terminal is mounted, reducing dependence on operator-applied tightening torque and supporting consistent panel assembly.
Its PI-Spring conductor connections maintain spring pressure on installed wires, while the double-deck profile and narrow 5.2 mm spacing help optimise available panel space. The green-and-yellow housing follows established protective-earth identification conventions, allowing grounding circuits to be recognised quickly during installation, testing and maintenance.
Typical Applications
- Protective-earth connections in industrial control panels.
- Machinery and OEM electrical systems.
- PLC and automation control cabinets.
- Industrial switchgear and distribution assemblies.
- Equipment grounding and bonding circuits.
- Manufacturing and process automation installations.
Technical Specifications
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| Number of Levels | 2 | |
|---|---|---|
| Product Series | TE SNK | |
| Connection | Push-in | |
| Terminal Type | Earth (PE) | |
| Colour | Green/Yellow | |
| Manufacturer | TE Connectivity | |
| Brand / range | ENTRELEC SNK | |
| Model | ZK2.5-D1-PE | |
| Manufacturer part number | 1SNK705250R0000 | |
| Product type | PI-Spring protective-earth terminal block | |
| Function | Ground / protective earth | |
| Connection technology | PI-Spring | |
| Number of circuits | 1 | |
| Number of levels | 2 | |
| Number of positions | 4 | |
| Product spacing | 5.2 mm | |
| Short-time withstand current at 1 s | 300 A | |
| IEC impulse withstand voltage | 8000 V | |
| Flexible conductor capacity | 0.22–2.5 mm² | |
| Rigid stranded conductor capacity | 0.2–4 mm² | |
| Insulated ferrule capacity | 0.22–2.5 mm² | |
| Non-insulated ferrule capacity | 0.22–2.5 mm² | |
| Rigid stranded conductor range | 26–12 AWG | |
| Ferrule conductor range | 26–14 AWG | |
| Wire stripping length | 11 mm | |
| Tool size | 3.5 mm | |
| Height | 84.6 mm | |
| Length | 60.3 mm | |
| Depth | 60.3 mm | |
| Weight | 15.7 g | |
| Housing material | Polyamide | |
| Colour | Green / yellow | |
| Mounting type | DIN rail | |
| Compatible DIN rails | TH35-7.5 / TH35-15 | |
| Protection rating | IP20 | |
| Flammability rating | UL 94V-0 | |
| Operating temperature | -55 to +110 °C | |
| Installation temperature | -5 to +40 °C |
Frequently Asked Questions
What is the TE Connectivity ZK2.5-D1-PE used for?
The ZK2.5-D1-PE is a protective-earth terminal block used to connect grounding conductors to the DIN rail in industrial control panels, machinery and electrical assemblies.
Is the ZK2.5-D1-PE a protective-earth terminal?
Yes. The ZK2.5-D1-PE is a green-and-yellow ground terminal incorporating a screwless rail contact for protective-earth connections.
What conductor sizes can the ZK2.5-D1-PE accept?
It accepts flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm².
How many positions and levels does this terminal block have?
The ZK2.5-D1-PE has four positions arranged across two levels and provides one protective-earth circuit.
What DIN rails are compatible with the ZK2.5-D1-PE?
The terminal block is designed for DIN rail mounting and is compatible with TH35-7.5 and TH35-15 rails.
What colour is TE Connectivity part 1SNK705250R0000?
The 1SNK705250R0000 ZK2.5-D1-PE has a green-and-yellow polyamide housing for clear identification as a protective-earth terminal.
Trusted by Industrial Panel Builders Worldwide
TE Connectivity ENTRELEC SNK protective-earth terminal blocks provide dependable grounding connections for industrial panel builders, machine manufacturers and automation engineers, combining compact DIN rail installation with reliable PI-Spring conductor termination.
