1SNA199554r2300 – d2.5/5 ado grey

Why Choose the TE Connectivity D2.5/5.ADO Feed-Through Terminal Block?

The TE Connectivity D2.5/5.ADO (1SNA199554R2300) is a compact grey feed-through terminal block from the ENTRELEC SNA ADO range, combining an ADO insulation-displacement connection with a conventional screw-clamp connection. This hybrid termination arrangement gives panel builders the speed of ADO wiring on one side while retaining familiar screw-clamp connectivity on the other.

With a rated current of 13.5 A, rated voltage of 1000 V and rated cross-section of 1 mm², the D2.5/5.ADO is designed for signal, control and industrial wiring applications. Its narrow 5 mm spacing helps maximise terminal density in control cabinets and other space-conscious DIN rail assemblies.

The terminal supports rigid conductors from 0.2–4 mm² and flexible conductors from 0.22–2.5 mm² at the screw-clamp connection, while the ADO side is designed for conductors up to 1 mm². DIN rail compatibility, IP20 protection and a wide -55 to +110 °C operating range make it a versatile connection point for professional industrial installations.

Key Advantages

• Combines ADO insulation-displacement and screw-clamp termination in one terminal block.
• 5 mm spacing supports high-density DIN rail terminal assemblies.
• Rated at 13.5 A and 1000 V for industrial control and signal circuits.
• ADO technology eliminates conventional stripping requirements on the ADO connection side.
• Supports up to two wires per ADO connection.
• Screw clamp accepts rigid conductors up to 4 mm² and flexible conductors up to 2.5 mm².
• 8 kV impulse withstand voltage supports robust electrical insulation performance.
• Compatible with standard 35 mm DIN rails.

Key Features

• TE Connectivity / ENTRELEC D2.5/5.ADO.
• Feed-through terminal block.
• Screw clamp – ADO System connection arrangement.
• Grey insulating housing.
• 1 mm² rated cross-section.
• 13.5 A rated current.
• 1000 V rated voltage.
• 8000 V rated impulse withstand voltage.
• 120 A short-time withstand current for 1 s.
• IP20 protection at the main terminals.
• Polyamide insulating material.
• Single-level, two-position feed-through configuration.

Reliable ADO and Screw-Clamp Connectivity

The D2.5/5.ADO combines two termination technologies to provide flexibility within industrial wiring systems. The ADO insulation-displacement connection is designed to simplify conductor installation and can accommodate up to two wires per connection, while the opposite screw clamp provides a conventional termination point for a broader range of conductor sizes.

Its 5 mm width allows large numbers of circuits to be accommodated efficiently on a DIN rail, while the 1000 V rating, 8 kV impulse withstand capability and IP20 main-terminal protection support dependable use in industrial control and automation assemblies. Mounting on standard TH35 rails also makes the terminal straightforward to integrate into established panel designs.

Typical Applications

• Industrial electrical control panels.
• PLC and automation cabinets.
• Machine control wiring.
• Process control systems.
• Signal and auxiliary circuits.
• Instrumentation wiring.
• High-density DIN rail terminal assemblies.
• OEM machinery and equipment.
• Industrial panel building and system integration.