Why Choose the TE Connectivity D2.5/5.N.ADO 1SNA199556R2500 Blue Terminal Block?
The TE Connectivity D2.5/5.N.ADO 1SNA199556R2500 is a blue feed-through terminal block from the Entrelec SNA ADO range, combining an ADO System connection with a conventional screw-clamp connection. This hybrid design provides the speed and reliability of ADO termination while retaining a familiar screw connection on the opposite side.
Designed for compact DIN rail assemblies, the D2.5/5.N.ADO occupies only 5 mm of terminal-row width. The ADO side accepts rigid conductors from 0.2–1 mm² and flexible conductors from 0.22–1 mm², while the screw-clamp side accommodates rigid conductors up to 4 mm² and flexible conductors up to 2.5 mm².
With an IEC rated current of 13.5 A, rated voltage of 1000 V and impulse withstand voltage of 8 kV, the 1SNA199556R2500 is engineered for dependable industrial signal and control wiring. Its blue polyamide housing, IP20 main-terminal protection and compatibility with TH35 DIN rails make it well suited to organised, high-density control-panel installations.
Key Advantages
- Hybrid ADO and screw-clamp technology combines rapid termination with conventional screw wiring.
- Compact 5 mm width helps maximise DIN rail connection density.
- ADO System connection supports up to two conductors per connection.
- 13.5 A, 1000 V IEC rating for industrial control and signal circuits.
- 8 kV impulse withstand voltage supports dependable insulation performance.
- Blue housing provides clear visual identification within terminal assemblies.
Key Features
- TE Connectivity / Entrelec D2.5/5.N.ADO terminal block.
- Feed-through terminal function.
- ADO System – screw clamp connection configuration.
- 1 mm² rated cross-section.
- 5 mm terminal spacing.
- 13.5 A IEC rated current.
- 1000 V IEC rated voltage.
- 120 A for 1 s rated short-time withstand current.
- IP20 main-terminal protection.
- Blue polyamide insulating housing with UL 94 V-0 flammability rating.
Fast ADO Connectivity with Screw-Clamp Flexibility
The D2.5/5.N.ADO combines two connection technologies in one compact terminal. The ADO System side is designed for rapid conductor termination and can accept up to two wires per connection, while the opposite screw-clamp side allows installers to connect using conventional screw-terminal practices.
At only 5 mm wide, this hybrid arrangement enables dense terminal layouts without sacrificing wiring flexibility. The blue housing also makes the terminal easy to distinguish from other colours and functions within larger SNA ADO assemblies.
Typical Applications
- Industrial control and automation panels.
- PLC input and output wiring.
- Instrumentation and signal circuits.
- Machine control and OEM electrical systems.
- High-density DIN rail terminal assemblies.
- Control cabinets requiring combined ADO and screw-clamp connectivity.
