Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1snk705021r0000 – zk2.5-3p-bl pi-spring clamp – blue
TE Connectivity ZK2.5-3P-BL 1SNK705021R0000 is a blue 2.5 mm² three-position feed-through PI-Spring DIN rail terminal block rated at 24 A and 1000 V IEC for industrial wiring and conductor distribution.
£0.679
Why Choose the TE Connectivity ZK2.5-3P-BL 1SNK705021R0000 PI-Spring Terminal Block?
The TE Connectivity ZK2.5-3P-BL 1SNK705021R0000 is a compact 2.5 mm² three-position feed-through PI-Spring terminal block designed for fast, reliable conductor connections in industrial control panels, machinery and automation systems. As part of the TE Connectivity ENTRELEC SNK series, it uses PI-Spring connection technology to provide efficient wiring while maintaining secure electrical contact.
The three-position configuration allows three conductors to be connected, distributed or branched within a single terminal block, making the ZK2.5-3P-BL particularly useful where compact signal or power distribution is required. Its blue polyamide housing provides clear circuit identification, while the slim 5.2 mm spacing helps maximise wiring density inside electrical cabinets.
With an IEC rated current of 24 A and rated voltage of 1000 V, the ZK2.5-3P-BL provides dependable electrical performance for industrial applications. It accepts flexible conductors up to 2.5 mm² and rigid stranded conductors up to 4 mm², while its DIN rail format enables straightforward installation on standard TH35 rails.
Key Advantages
- Compact three-position feed-through terminal block for conductor distribution and branching.
- PI-Spring connection technology enables fast and reliable conductor termination.
- 24 A IEC rated current suitable for industrial control and distribution circuits.
- 1000 V IEC rated voltage for demanding electrical installations.
- Only 5.2 mm wide, helping maximise terminal density on the DIN rail.
- Blue housing provides convenient identification of circuits within control panels.
Key Features
- TE Connectivity ENTRELEC SNK ZK series.
- 2.5 mm² rated cross-section.
- Three-position feed-through configuration.
- PI-Spring connection technology.
- 24 A IEC rated current.
- 1000 V IEC rated voltage.
- 20 A UL / CSA rated current.
- 600 V UL / CSA voltage rating.
- 300 A short-time withstand current at 1 s.
- Compatible with TH35-7.5 and TH35-15 DIN rails.
- Blue polyamide housing with UL 94V-0 flammability rating.
Fast and Reliable PI-Spring Connections for Industrial Control
PI-Spring terminal technology provides a fast and secure method of connecting conductors without conventional screw tightening. The spring mechanism maintains consistent contact pressure on the conductor, helping provide dependable electrical connections while simplifying installation and maintenance in industrial control cabinets.
The three-position ZK2.5-3P-BL extends this functionality by allowing three conductors to share a single circuit connection. This makes it particularly useful for branching and distributing circuits while retaining the compact dimensions and modular DIN rail installation associated with the ENTRELEC SNK terminal block range.
Typical Applications
- Industrial control panels and electrical cabinets.
- Signal and power distribution circuits.
- PLC and automation system wiring.
- Industrial machinery and production equipment.
- Building automation and control systems.
- OEM equipment and industrial panel building.
Technical Specifications
Tick the specs you need, then view products that match.
| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE SNK | |
| Connection | Push-in | |
| Terminal Type | Feed-through | |
| Conductor Size | 2.5 mm² | |
| Colour | Blue | |
| Manufacturer | TE Connectivity | |
| Brand / range | ENTRELEC SNK | |
| Series | ZK | |
| Model | ZK2.5-3P-BL | |
| Manufacturer part number | 1SNK705021R0000 | |
| Product type | PI-Spring terminal block | |
| Terminal function | Feed-through / distribution | |
| Rated cross-section | 2.5 mm² | |
| Connection type | PI-Spring connection | |
| Number of positions | 3 | |
| Number of circuits | 1 | |
| Number of levels | 1 | |
| Rated current (IEC) | 24 A | |
| Rated current (UL / CSA) | 20 A | |
| Rated voltage (IEC) | 1000 V | |
| Rated voltage (UL / CSA) | 600 V | |
| Impulse withstand voltage (IEC) | 8000 V | |
| Dielectric withstand voltage | 2200 V | |
| Short-time withstand current at 1 s | 300 A | |
| Power loss | 1 W | |
| 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 | |
| Twin ferrule capacity | 0.22–0.5 mm² | |
| Conductor range | 26–12 AWG for rigid stranded conductors | |
| Wire stripping length | 11 mm | |
| Tool size | 3.5 mm | |
| Terminal spacing | 5.2 mm | |
| Housing material | Polyamide | |
| Colour | Blue | |
| Protection rating | IP20 | |
| Flammability rating | UL 94V-0 | |
| Mounting type | DIN rail | |
| DIN rail compatibility | TH35-7.5 / TH35-15 | |
| Dimensions (H × W × D) | 64.7 × 5.2 × 40.2 mm | |
| Weight | 7.4 g | |
| Operating temperature | -55–110 °C | |
| Installation temperature | -5–40 °C |
Frequently Asked Questions
What is the TE Connectivity ZK2.5-3P-BL 1SNK705021R0000 used for?
This terminal block is used for feed-through, distribution and branching connections in industrial control panels, automation systems and electrical equipment.
How many conductor positions does the ZK2.5-3P-BL have?
The ZK2.5-3P-BL has three connection positions on a single circuit, allowing three conductors to be connected or branched through one terminal block.
What conductor sizes does the ZK2.5-3P-BL support?
The terminal accepts flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm².
What are the current and voltage ratings of the ZK2.5-3P-BL?
The terminal is rated at 24 A and 1000 V under IEC specifications, with UL / CSA ratings of 20 A and 600 V.
Where is the ZK2.5-3P-BL typically installed?
The terminal is designed for mounting on TH35-7.5 or TH35-15 DIN rails inside industrial control panels, electrical cabinets and automation equipment.
Trusted Industrial Terminal Technology
TE Connectivity ENTRELEC SNK PI-Spring terminal blocks combine compact DIN rail installation, efficient spring connection technology and dependable electrical performance for modern industrial control and automation systems.
