TE Connectivity DH4/6.ADO 1SNA299521R2600 is a compact grey 1.5 mm² feed-through miniblock combining ADO insulation-displacement and screw-clamp connections with IEC ratings of 17.5 A and 800 V.
£1.31
The TE Connectivity DH4/6.ADO 1SNA299521R2600 is a compact 1.5 mm² feed-through miniblock terminal combining ADO insulation-displacement technology with a conventional screw-clamp connection. Part of the established TE Connectivity / Entrelec ADO terminal block system, it is specifically designed for industrial control applications where available installation space is highly restricted.
The hybrid ADO and screw-clamp connection system provides flexibility when terminating different sides of a circuit. The ADO side accepts rigid conductors from 0.28–1.5 mm² and flexible conductors from 0.34–1.5 mm², while the screw-clamp side accommodates conductors up to 4 mm². The ADO connection can also accept up to two conductors per connection point.
With an IEC rated current of 17.5 A, rated voltage of 800 V and impulse withstand voltage of 8 kV, the DH4/6.ADO provides substantial electrical performance within a compact 6 mm spacing. A snap-in mounting foot simplifies direct base mounting, making the terminal particularly useful in compact machinery, control equipment and automation assemblies.
The DH4/6.ADO combines two established conductor-termination methods within one compact terminal. The ADO insulation-displacement side enables fast conductor connection and can accommodate up to two wires per connection point, while the conventional screw-clamp side provides compatibility with a broad range of rigid and flexible conductors.
This hybrid design is particularly useful when compact wiring density and connection flexibility are required simultaneously. With a width of only 6 mm and direct snap-in base mounting, the DH4/6.ADO can be integrated into restricted spaces while still providing electrical ratings suitable for demanding industrial control circuits.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Model | DH4/6.ADO |
| Part number | 1SNA299521R2600 |
| Product type | ADO / screw-clamp miniblock terminal |
| Function | Feed-through |
| Connection technology | ADO insulation-displacement / screw clamp |
| Number of levels | 1 |
| Clamping positions per level | 2 |
| Rated cross-section | 1.5 mm² |
| ADO rigid conductor capacity | 0.28–1.5 mm² |
| ADO flexible conductor capacity | 0.34–1.5 mm² |
| ADO UL conductor range | 22–16 AWG |
| Screw-clamp rigid conductor capacity | 0.2–4 mm² |
| Screw-clamp flexible conductor capacity | 0.22–4 mm² |
| Screw-clamp UL conductor range | 22–10 AWG |
| IEC rated current | 17.5 A |
| UL rated current | 20 A |
| IEC rated voltage | 800 V |
| UL rated voltage | 600 V |
| Rated impulse withstand voltage | 8,000 V |
| Dielectric test voltage | 3,500 V |
| Rated short-time withstand current | 180 A for 1 s |
| Protection rating | IP20 main terminals |
| Pollution degree | 3 |
| Spacing / width | 6 mm |
| Height | 31 mm |
| Depth | 28 mm |
| Screw-clamp strip length | 9.5 mm |
| Screw-clamp tightening torque | 0.5–0.8 Nm |
| Recommended screwdriver | 4 mm flat-blade |
| Mounting method | Direct base mounting with snap-in mounting foot |
| Colour | Grey |
| Operating temperature | -55 to +110 °C |
| Net weight | 5 g |
| Pack quantity | 100 |
| EAN | 3472592995212 |
It is a compact feed-through miniblock terminal combining an ADO insulation-displacement connection with a conventional screw-clamp connection for industrial control wiring.
The ADO connection accepts 0.28–1.5 mm² rigid and 0.34–1.5 mm² flexible conductors, while the screw clamp accepts 0.2–4 mm² rigid and 0.22–4 mm² flexible conductors.
The DH4/6.ADO has an IEC rated current of 17.5 A, rated voltage of 800 V, impulse withstand voltage of 8,000 V and short-time withstand current of 180 A for 1 s.
The terminal is approximately 31 mm high × 6 mm wide × 28 mm deep and weighs approximately 5 g, making it suitable for compact electrical assemblies.
The DH4/6.ADO is designed for direct base mounting and incorporates a snap-in mounting foot to simplify installation in compact equipment and terminal assemblies.
TE Connectivity and Entrelec ADO terminal blocks provide compact and flexible conductor termination for industrial automation and control systems where reliable electrical performance, efficient installation and effective use of limited panel space are essential.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...
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...