Why Choose the TE Connectivity ZK2.5-4P-BK PI-Spring Terminal Block?
The TE Connectivity ZK2.5-4P-BK is a compact four-position PI-Spring feed-through terminal block designed for fast, reliable conductor connections and distribution in industrial control panels, machinery and automation equipment. Part of the TE Connectivity ENTRELEC SNK series, this black terminal combines spring-force connection technology with a space-efficient 5.2 mm DIN rail footprint.
Its four-position, single-circuit configuration provides a practical way to connect multiple conductors at a common electrical potential, making the ZK2.5-4P-BK suitable for branching and distribution applications. PI-Spring technology provides consistent spring pressure on connected conductors and supports efficient panel wiring without the routine tightening associated with conventional screw terminals.
The ZK2.5-4P-BK is rated at 24 A and 1000 V to IEC and accepts flexible conductors up to 2.5 mm² and rigid stranded conductors up to 4 mm² / 12 AWG. Its black UL 94 V-0 polyamide housing, IP20 protection and broad operating temperature range make it a dependable choice for professional industrial DIN rail installations.
Key Advantages
- Four-position configuration enables convenient multi-conductor distribution within one circuit.
- PI-Spring connection technology provides fast, secure and consistent conductor termination.
- Compact 5.2 mm terminal spacing helps maximise DIN rail wiring density.
- 24 A IEC current rating for industrial power and signal circuits.
- 1000 V IEC voltage rating supports demanding control-panel applications.
- Accepts rigid stranded conductors up to 4 mm² / 12 AWG.
- Black housing provides clear visual differentiation within terminal assemblies.
- IP20 protection and UL 94 V-0 polyamide construction for professional installations.
Key Features
- TE Connectivity ENTRELEC SNK series.
- PI-Spring feed-through terminal block.
- Four conductor positions within one electrical circuit.
- Single-level configuration.
- 5.2 mm product spacing.
- 24 A rated current to IEC.
- 1000 V rated voltage to IEC.
- 20 A rated current to UL and CSA.
- 600 V maximum operating voltage to UL and CSA.
- 300 A short-time withstand current for 1 s.
- 8000 V IEC impulse withstand voltage.
- 2200 V maximum dielectric withstand voltage.
- Black polyamide insulating housing.
- UL 94 V-0 flammability rating.
- IP20 ingress protection.
- Operating temperature range of -55 to +110 °C.
Efficient Four-Conductor Distribution with PI-Spring Technology
PI-Spring terminal blocks use spring-force connection technology to maintain reliable electrical contact while supporting efficient panel wiring. The ZK2.5-4P-BK combines this connection method with four positions in one electrical circuit, providing an effective solution for connecting, distributing or branching multiple conductors while retaining a narrow 5.2 mm DIN rail footprint.
The ENTRELEC SNK platform is designed for modular industrial panel construction, allowing compatible terminals and accessories to be arranged into organised assemblies. With its four-position design, broad conductor compatibility and black housing, the ZK2.5-4P-BK is particularly useful in automation and control systems where compact, clearly differentiated multi-conductor wiring is required.
Typical Applications
- Industrial control panels and electrical cabinets.
- PLC and distributed I/O wiring.
- Machine building and OEM automation systems.
- Multi-conductor distribution and branching circuits.
- Process control and instrumentation equipment.
- Power and signal distribution assemblies.
- High-density DIN rail terminal installations.
