1snk705011r0000 – zk2.5-3p pi-spring clamp – grey

Why Choose the TE Connectivity ZK2.5-3P 1SNK705011R0000 2.5 mm² Grey PI-Spring Feed-Through Terminal Block?

The TE Connectivity ZK2.5-3P 1SNK705011R0000 is a compact 2.5 mm² three-position PI-Spring feed-through terminal block from the ENTRELEC SNK series. Designed for industrial control panels, machinery and automation systems, it combines fast spring connection technology with three conductor connection points for convenient distribution or branching within a single terminal.

Unlike the standard two-position ZK2.5, the ZK2.5-3P provides three connection positions on one common circuit, allowing three conductors to be electrically connected together. This makes it particularly useful where a potential or signal needs to be distributed or branched without adding a separate jumper or additional terminal block.

The ZK2.5-3P has a compact 5.2 mm spacing while delivering IEC ratings of 24 A and 1000 V. It accepts flexible conductors from 0.22–2.5 mm² and rigid stranded conductors from 0.2–4 mm², providing a versatile, space-efficient solution for professional DIN rail wiring.

Key Advantages

• Three conductor connections enable convenient distribution or branching from one terminal.
• PI-Spring technology combines push-in convenience with spring-mode conductor termination.
• Compact 5.2 mm terminal spacing helps maximise DIN rail capacity.
• 24 A IEC current rating supports industrial power and signal circuits.
• 1000 V IEC voltage rating provides strong electrical performance.
• Accepts flexible conductors from 0.22–2.5 mm² and rigid stranded conductors up to 4 mm².
• Single common circuit simplifies potential and signal distribution.
• Compatible with standard TH35-7.5 and TH35-15 DIN rails.

Key Features

• TE Connectivity ENTRELEC SNK series.
• ZK2.5-3P PI-Spring feed-through terminal block.
• 2.5 mm² rated cross-section.
• Three connection positions.
• One common circuit and one level.
• Designed for distribution and branching of three conductors.
• Spring terminal / PI-Spring connection.
• 24 A IEC current rating.
• 1000 V IEC voltage rating.
• 20 A UL and CSA current ratings.
• 600 V UL and CSA operating voltage.
• 8000 V IEC impulse withstand voltage.
• 300 A short-time withstand current at 1 s.
• 5.2 mm product spacing.
• Grey polyamide insulating housing.

Three-Position PI-Spring Connection for Easy Distribution and Branching

The defining feature of the ZK2.5-3P is its three-position, single-circuit configuration. All three conductor connection points belong to the same electrical circuit, allowing an incoming conductor to be distributed to two outgoing conductors, or enabling three conductors to be joined at a single DIN rail terminal. This can simplify control-panel wiring and reduce the need for additional distribution terminals or external jumpers.

TE Connectivity's PI-Spring technology combines two connection approaches in one terminal. Suitable prepared conductors can be inserted directly using push-in operation, while the spring can be opened with a screwdriver when connecting or removing other conductor types. Together with the narrow 5.2 mm profile, this makes the ZK2.5-3P particularly useful for densely populated industrial control cabinets where installation speed and space efficiency are important.

Typical Applications

• Three-conductor feed-through and branching connections.
• Potential distribution in industrial control panels.
• PLC and automation system wiring.
• Machine control and production equipment.
• Power and signal distribution circuits.
• Instrumentation and process-control systems.
• Building automation and electrical cabinets.
• OEM machinery and space-efficient DIN rail assemblies.