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.
