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TE Connectivity D4/8.ADO 1SNA399801R0400 is an orange 4 mm², 32 A, 1000 V feed-through IDC terminal block with ADO System connections and TH 35 DIN rail mounting for industrial control wiring.
The TE Connectivity D4/8.ADO, part number 1SNA399801R0400, is an orange feed-through IDC terminal block from the Entrelec ADO System range. Designed for industrial control applications, it uses ADO insulation displacement connections on both sides to provide fast, secure conductor termination without conventional screw-clamp wiring.
With a rated cross-section of 4 mm², the D4/8.ADO provides a rated current of 32 A and rated voltage of 1000 V. Its ADO connection system is engineered for applications subject to demanding operating conditions such as vibration, shock and corrosion, making it suitable for machinery, automation equipment and industrial control cabinets.
The terminal has an 8 mm spacing, provides IP20 protection at the main terminals and mounts on standard TH 35-7.5 or TH 35-15 DIN rails. Its orange polyamide housing provides clear circuit identification while the compact single-level construction supports organised, high-density terminal assemblies.
The D4/8.ADO provides a straightforward electrical feed-through connection while using the Entrelec ADO System instead of conventional screw clamps. Insulation displacement technology simplifies conductor termination and helps provide consistent electrical connections, making the terminal particularly useful in repetitive panel-building and industrial wiring operations.
Its 32 A current rating, 1000 V voltage rating and 480 A for 1 s short-time withstand capability provide robust electrical performance, while the polyamide housing and standard TH 35 DIN rail mounting make it easy to integrate into modular control-panel terminal assemblies.
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| Number of Levels | 1 | |
|---|---|---|
| Connection | IDC (ADO) | |
| Terminal Type | Multi-level | |
| Conductor Size | 4 mm² | |
| Product Series | TE SNA ADO | |
| Colour | Orange | |
| Manufacturer | TE Connectivity / Entrelec | |
| Model | D4/8.ADO | |
| Manufacturer part number | 1SNA399801R0400 | |
| Product type | Feed-through IDC terminal block | |
| Function | Feed-through | |
| Connection technology | ADO System | |
| Connection configuration | ADO-ADO | |
| Number of levels | 1 | |
| Rated cross-section | 4 mm² | |
| ADO rigid conductor capacity | 4 mm² | |
| ADO flexible conductor capacity | 4 mm² | |
| UL/CSA conductor capacity | 12 AWG stranded | |
| Rated current | 32 A | |
| Rated voltage | 1000 V | |
| Rated impulse withstand voltage | 8000 V | |
| Rated short-time withstand current | 480 A for 1 s | |
| Dielectric test voltage | 3500 V | |
| Pollution degree | 3 | |
| Protection rating | IP20 | |
| Terminal spacing / width | 8 mm | |
| Height | 50 mm | |
| Depth | 41 mm | |
| DIN rail compatibility | TH 35-7.5 / TH 35-15 | |
| Insulation material | Polyamide | |
| Flammability classification | UL 94 V-0 | |
| Colour | Orange | |
| Operating temperature | -55 to +110 °C | |
| Storage temperature | -55 to +110 °C | |
| Net weight | 9 g | |
| Pack quantity | 50 pieces | |
| EAN | 3472593998014 |
The D4/8.ADO is an orange feed-through IDC terminal block using ADO System insulation displacement connections on both sides for industrial electrical wiring.
The terminal has an IEC rated current of 32 A and a rated voltage of 1000 V.
The D4/8.ADO has a rated cross-section of 4 mm² and supports 12 AWG stranded conductors under UL/CSA specifications.
It uses the TE Connectivity / Entrelec ADO System, providing insulation displacement connections at both sides of the feed-through terminal.
The D4/8.ADO mounts on standard TH 35-7.5 and TH 35-15 DIN rails.
Yes. The ADO terminal range is designed for control applications exposed to demanding conditions including vibration, shock and corrosion.
TE Connectivity / Entrelec ADO terminal blocks provide efficient insulation displacement connections for industrial control and automation systems, combining robust electrical performance with compact DIN rail installation and reliable conductor termination.
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