Why Choose the TE Connectivity ZK2.5-D2 PI-Spring Double-Deck Terminal Block?
The TE Connectivity ZK2.5-D2 (1SNK705210R0000) is a compact double-deck PI-Spring feed-through terminal block designed for reliable power and signal connections in industrial control panels and electrical distribution systems. Part of the ENTRELEC SNK Series, it combines two independent feed-through circuits in a space-saving two-level design with a width of just 5.2 mm.
The ZK2.5-D2 uses TE Connectivity's PI-Spring connection technology to provide fast, secure conductor termination without conventional screw tightening. Its two-level configuration makes efficient use of DIN rail space, while two jumper channels and large input and output marking areas on each deck support organised wiring and straightforward circuit identification.
With a rated cross-section of 2.5 mm², an IEC voltage rating of 800 V and IEC current rating of 24 A, this grey terminal block is suited to demanding industrial wiring applications. It accommodates rigid conductors up to 4 mm² and mounts on standard TH35 DIN rails, making it a versatile solution for compact control and automation assemblies.
Key Advantages
- Double-deck design with two feed-through circuits saves valuable DIN rail space.
- PI-Spring connection technology provides fast and reliable conductor termination.
- Compact 5.2 mm spacing supports high-density control-panel wiring.
- 800 V IEC voltage rating and 24 A IEC current rating suit demanding power and signal applications.
- Two jumper channels provide flexible potential distribution options.
- Large input and output marker zones on each deck simplify circuit identification.
- Wide conductor compatibility supports both rigid and flexible industrial wiring.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- ZK2.5-D2 double-deck PI-Spring terminal block.
- Two levels with two independent feed-through circuits.
- Four connection positions.
- 2.5 mm² rated cross-section.
- 5.2 mm terminal spacing.
- 24 A IEC rated current.
- 800 V IEC rated voltage.
- 20 A UL / CSA current rating.
- 600 V CSA voltage rating.
- Grey polyamide housing with UL 94V-0 flammability rating.
- DIN rail mounting for compact industrial panel installations.
Reliable Double-Deck Connections for Industrial Control Panels
Double-deck terminal blocks allow two separate circuits to be connected within the footprint normally occupied by a single-width terminal, helping increase wiring density without sacrificing accessibility. The ZK2.5-D2's two independent feed-through levels are particularly useful where control cabinets contain large numbers of field, control and signal conductors.
PI-Spring technology provides a secure spring-force connection while simplifying conductor installation and maintenance. Combined with two jumper channels, generous marking areas and standard DIN rail mounting, the ZK2.5-D2 provides a practical modular connection solution for machine building, automation and electrical distribution applications.
Typical Applications
- Industrial control panels and switchgear assemblies.
- PLC and automation control cabinets.
- Machine building and OEM electrical systems.
- Power and signal distribution circuits.
- Process control and instrumentation panels.
- High-density DIN rail wiring installations.
- Building automation and electrical distribution equipment.
