ZK2.5-BL – 2.5mm PUSH IN TERMINAL BLUE

Why Choose the TE Connectivity ZK2.5-BL PI-Spring Feed-Through Terminal Block?

The TE Connectivity ZK2.5-BL 1SNK705020R0000 is a blue 2.5 mm² PI-Spring feed-through terminal block designed for fast, secure conductor termination in industrial control panels, automation systems and electrical distribution assemblies. Part of the TE Connectivity ENTRELEC SNK Series, it combines compact DIN rail installation with spring connection technology for efficient power and signal wiring.

The ZK2.5-BL provides a two-position, single-level feed-through configuration within a narrow 5.2 mm pitch. Its PI-Spring connection system supports rapid conductor installation while maintaining consistent spring contact pressure, helping reduce wiring time and simplifying assembly compared with conventional screw termination.

With a rated cross-section of 2.5 mm², an IEC current rating of 24 A and an IEC voltage rating of 1,000 V, the ZK2.5-BL delivers dependable electrical performance despite its compact dimensions. The terminal accepts flexible conductors up to 2.5 mm² and rigid stranded conductors up to 4 mm², making it a versatile solution for industrial power and signal circuits.

Key Advantages

• PI-Spring connection technology enables fast and dependable conductor termination.
• Compact 5.2 mm pitch maximises available DIN rail space.
• 24 A IEC current rating supports industrial power and signal circuits.
• 1,000 V IEC voltage rating provides excellent electrical capability.
• Accepts rigid stranded conductors up to 4 mm².
• Blue housing enables clear visual identification within terminal assemblies.
• Compatible with standard TH35-7.5 and TH35-15 DIN rails.

Key Features

• TE Connectivity ENTRELEC SNK Series.
• ZK2.5-BL PI-Spring terminal block.
• Feed-through terminal function.
• Spring terminal connection.
• 2 connection positions.
• 1 circuit and 1 level.
• 5.2 mm product spacing.
• 2.5 mm² rated cross-section.
• 24 A IEC rated current.
• 1,000 V IEC rated voltage.
• 20 A UL/CSA rated current.
• 600 V CSA voltage rating.
• 300 A short-time withstand current at 1 s.
• Blue polyamide housing.
• IP20 protection rating.
• UL 94V-0 flammability rating.

Reliable Push-In Spring Connectivity

The TE Connectivity ZK2.5-BL uses PI-Spring technology to provide a fast and reliable alternative to conventional screw terminal connections. The spring terminal maintains consistent contact pressure on the conductor, supporting dependable electrical performance while simplifying installation and subsequent maintenance.

At only 5.2 mm wide, the ZK2.5-BL is particularly useful in densely populated control cabinets where DIN rail space is valuable. Its 24 A IEC current capability, support for rigid stranded conductors up to 4 mm² and wide -55 to +110 °C operating range make it suitable for a broad range of industrial automation, power and signal applications.

Typical Applications

• Industrial control panels and electrical cabinets.
• PLC and I/O wiring systems.
• Factory automation equipment.
• Power and signal distribution circuits.
• Machine building and production equipment.
• Process control and instrumentation systems.
• High-density DIN rail terminal assemblies.