Why Choose the TE Connectivity ZK6-BL 1SNK708020R0000 PI-Spring Terminal Block?
The TE Connectivity ZK6-BL 1SNK708020R0000 is a robust PI-Spring feed-through terminal block designed for reliable power and signal connections in industrial control panels, electrical enclosures and automation systems. As part of the TE Connectivity ENTRELEC SNK series, it combines compact DIN rail installation with fast spring-clamp conductor termination for efficient panel building and maintenance.
The ZK6-BL uses PI-Spring connection technology, allowing suitable conductors to be terminated quickly while maintaining dependable spring contact pressure. Its single-level, two-position feed-through configuration provides a straightforward connection between incoming and outgoing conductors without the routine tightening associated with conventional screw-clamp terminals.
With an IEC current rating of 41 A and IEC voltage rating of 1000 V, the ZK6-BL is suitable for demanding industrial circuits. It accepts flexible conductors from 0.5–6 mm² and rigid stranded conductors up to 10 mm², while its distinctive blue polyamide housing makes it particularly useful where circuit identification is important.
Key Advantages
- Reliable PI-Spring feed-through terminal block for industrial power and signal wiring.
- 41 A / 1000 V IEC rating for demanding electrical applications.
- Accepts flexible conductors from 0.5–6 mm².
- Supports rigid stranded conductors from 0.5–10 mm².
- Blue housing enables clear visual identification within control panels.
- Compact 8 mm terminal spacing helps optimise DIN rail installation space.
Key Features
- TE Connectivity ENTRELEC SNK series.
- ZK6-BL PI-Spring terminal block.
- Feed-through configuration.
- Two connection positions on one circuit and one level.
- 41 A IEC rated current.
- 1000 V IEC rated voltage.
- 50 A UL / CSA rated current.
- 600 V UL / CSA operating voltage.
- 8 mm terminal spacing.
- Blue polyamide housing.
- DIN rail mounting for efficient control-panel installation.
- Wide -55–110 °C operating temperature range.
Reliable PI-Spring Connections for Industrial Wiring
PI-Spring technology provides a fast and dependable method of terminating electrical conductors in industrial control equipment. Suitable conductors can be connected efficiently while the spring mechanism maintains consistent contact pressure, helping simplify assembly and reduce maintenance compared with conventional screw-clamp connections.
The ZK6-BL combines this connection technology with an 8 mm pitch and broad conductor capacity, making it suitable for higher-current power and signal circuits where reliable termination and efficient DIN rail installation are required. Its blue housing also provides immediate visual differentiation from standard grey terminal blocks within complex control-panel assemblies.
Typical Applications
- Industrial control panels and electrical cabinets.
- Machine building and OEM automation systems.
- Power and signal distribution circuits.
- PLC and industrial control wiring.
- Factory automation and production machinery.
- DIN rail installations requiring blue circuit identification.
