Why Choose the TE Connectivity D4/6.ADO Orange Feed-Through Terminal Block?
The TE Connectivity 1SNA199035R1600 D4/6.ADO is a compact orange feed-through terminal block designed for reliable conductor connections in industrial control panels, machinery and automation systems. Part of the established ENTRELEC SNA ADO range, it combines an ADO connection with a conventional screw clamp connection, providing a practical hybrid solution for industrial wiring.
The D4/6.ADO is rated at 17.5 A and 1000 V under applicable IEC specifications and has a compact 6 mm pitch. The ADO side accommodates conductors from 0.34–1.5 mm², while the screw-clamp side accepts rigid conductors from 0.2–4 mm² and flexible conductors from 0.22–4 mm².
With its 45 × 6 × 41 mm dimensions and standard 35 mm DIN rail mounting, the terminal block supports high-density wiring inside electrical cabinets. Its orange thermoplastic housing has a UL 94 V-0 flammability classification, while an operating temperature range of -55 to +110 °C supports use in demanding industrial environments.
Key Advantages
- Compact feed-through terminal block for industrial panel wiring.
- Combines ADO and screw clamp connection technology.
- 17.5 A rated current for industrial control and distribution circuits.
- 1000 V rated voltage under applicable IEC specifications.
- Compact 6 mm pitch helps maximise wiring density.
- ADO connection accepts 0.34–1.5 mm² conductors.
- Screw clamp accommodates conductors up to 4 mm².
- Orange housing provides easy visual identification within terminal assemblies.
Key Features
- TE Connectivity / ENTRELEC SNA ADO range.
- D4/6.ADO feed-through configuration.
- Orange terminal housing.
- 17.5 A rated current.
- 1000 V rated voltage.
- 8 kV rated impulse withstand voltage.
- 180 A short-time withstand current for 1 s.
- 6 mm terminal spacing.
- Hybrid screw clamp / ADO System connection.
- Single-level configuration with two clamping positions.
- Standard 35 mm DIN rail mounting.
- Thermoplastic insulation with UL 94 V-0 flammability rating.
Reliable ADO Connections for Industrial Wiring
The ENTRELEC ADO connection system is designed to provide fast, consistent conductor termination for industrial electrical installations. On the D4/6.ADO, this technology is combined with a standard screw clamp connection, allowing different conductor requirements to be accommodated within a single compact feed-through terminal.
Its 6 mm-wide modular construction makes the D4/6.ADO particularly useful where panel space is limited. The orange housing also enables circuits to be visually differentiated from adjacent terminal blocks, helping create clearly organised terminal strips for commissioning, troubleshooting and maintenance.
Typical Applications
- Industrial electrical control panels.
- Factory automation systems.
- Machine control cabinets.
- Power and signal distribution circuits.
- Switchgear and distribution equipment.
- PLC and instrumentation panels.
- DIN rail terminal assemblies.
- OEM machinery and production equipment.
