TE Connectivity 1SNA199089R2500 D2.5/8.ADO is a black 8 mm ADO feed-through terminal block with a 2.5 mm² rated cross-section, 24 A rated current and 1000 V rated voltage for industrial control and automation wiring.
Replacement product
48329
SKU: 1SNA199059R0600
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£2.64
The TE Connectivity D2.5/8.ADO Black (1SNA199089R2500) is a compact 2.5 mm² ADO feed-through terminal block designed for reliable conductor termination in industrial control, automation and electrical panel applications. Part of the established TE Connectivity ENTRELEC SNA ADO range, it combines insulation-displacement connection technology with a space-efficient DIN rail format.
The D2.5/8.ADO uses the ADO System on both connection sides, providing rapid conductor termination without conventional screw-clamp wiring. Its self-stripping connection principle is particularly useful for repetitive panel assembly, helping simplify wiring while providing dependable connections in industrial equipment.
With a rated cross-section of 2.5 mm², rated current of 24 A and rated voltage of 1000 V, the 1SNA199089R2500 provides robust electrical performance in an 8 mm-wide terminal. Its black polyamide housing provides a useful colour-identification option, while compatibility with standard 35 mm DIN rails enables straightforward integration into terminal assemblies.
The ENTRELEC ADO System uses insulation-displacement termination to provide an efficient alternative to conventional screw-clamp wiring. Compatible conductors are connected using the dedicated ADO termination method, helping streamline repetitive panel wiring while providing consistent electrical contact.
The D2.5/8.ADO combines this connection technology with a compact 8 mm footprint and robust electrical ratings. Its 24 A current rating, 1000 V rated voltage and 8 kV impulse withstand capability make it suitable for demanding industrial control and automation installations, while the black housing assists with circuit identification.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | SNA ADO |
| Model | D2.5/8.ADO |
| Part number | 1SNA199089R2500 |
| Alternative designation | D2.5/8.ADO BLACK V2 |
| Product type | IDC feed-through terminal block |
| Function | Feed-through |
| Connection type | ADO System / insulation-displacement connection |
| Number of levels | 1 |
| Connection positions per level | 2 |
| Rated cross-section | 2.5 mm² |
| Fine-stranded conductor capacity | 1–2.5 mm² |
| UL/CSA connecting capacity | Stranded 14 AWG |
| Rated current | 24 A |
| Rated voltage | 1000 V |
| Maximum UL/CSA operating voltage | 600 V |
| Rated impulse withstand voltage | 8000 V |
| Dielectric test voltage | 3500 V |
| Rated short-time withstand current | 300 A for 1 s |
| Spacing / width | 8 mm |
| Height | 45 mm |
| Depth | 41 mm |
| Protection rating | IP20 at main terminals |
| Insulation material | Polyamide |
| Colour | Black |
| DIN rail compatibility | TH35-7.5 (35 × 7.5 mm) and TH35-15 (35 × 15 mm) according to IEC 60715 |
| Operating temperature | -55 to +110 °C |
| Storage temperature | -55 to +110 °C |
| Product net weight | 9 g |
| ETIM classification | EC000897 – Feed-through terminal block |
| EAN | 3472591990898 |
| Standard pack quantity | 50 pieces |
The 1SNA199089R2500 is a black D2.5/8.ADO feed-through terminal block with ADO insulation-displacement connections on both sides, designed for industrial control, automation and panel wiring.
The terminal block has a rated current of 24 A, a rated voltage of 1000 V and a rated impulse withstand voltage of 8 kV.
The D2.5/8.ADO has a rated cross-section of 2.5 mm². Fine-stranded conductor capacity is specified at 1–2.5 mm², while its UL/CSA connecting capacity is stranded 14 AWG.
The black housing provides an additional colour-identification option, allowing selected circuits or terminal groups to be visually distinguished within an electrical panel.
The terminal block mounts on TH35-7.5 (35 × 7.5 mm) and TH35-15 (35 × 15 mm) DIN rails in accordance with IEC 60715.
TE Connectivity ENTRELEC SNA ADO terminal blocks provide compact and dependable conductor termination for industrial control and automation systems where efficient wiring, high connection density and clear circuit identification are essential.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...