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1sna199091r1700 – d2.5/8.p ado.
TE Connectivity 1SNA199091R1700 D2.5/8.P.ADO is a green-and-yellow 2.5 mm² screwless ADO/ADO ground terminal block with an 8 mm pitch and direct DIN rail protective earth contact for industrial wiring.
£3.67
Why Choose the TE Connectivity D2.5/8.P.ADO Ground Terminal Block?
The TE Connectivity 1SNA199091R1700 D2.5/8.P.ADO is a compact green-and-yellow ground terminal block designed to provide reliable protective earth connections in industrial control panels, machinery and electrical distribution equipment. Part of the established ENTRELEC SNA ADO range, it combines screwless ADO insulation displacement connections with a direct, operator-independent rail contact for dependable grounding.
Designed around a rated conductor cross-section of 2.5 mm², the D2.5/8.P.ADO accepts copper conductors from 1–2.5 mm² and uses ADO connections on both sides. The connection system supports up to two wires per connection and eliminates the need to apply a conventional screw-clamp tightening torque, helping improve consistency and reduce wiring time.
The terminal has an 8 mm pitch and mounts on standard TH35-7.5 and TH35-15 DIN rails. Its screwless rail contact provides the protective earth connection to the mounting rail, while IP20 main-terminal protection, polyamide insulation and an operating temperature range of -55 to +110 °C support use in demanding industrial environments.
Key Advantages
- Purpose-designed protective earth / ground terminal block.
- 2.5 mm² rated cross-section for industrial grounding conductors.
- Screwless ADO/ADO connection technology for fast, consistent termination.
- Screwless rail contact provides an operator-independent earth connection.
- Supports up to two wires per connection.
- 300 A short-time withstand current for 1 s.
- 8 mm terminal spacing for organised DIN rail assemblies.
- Green-and-yellow construction provides clear protective earth identification.
Key Features
- TE Connectivity / ENTRELEC SNA ADO series.
- D2.5/8.P.ADO ground terminal configuration.
- ADO System / ADO System conductor connections.
- 1–2.5 mm² conductor connection range.
- 2.5 mm² rated cross-section.
- 14 AWG UL conductor rating.
- 300 A short-time withstand current for 1 s.
- 8 mm terminal width and spacing.
- Single-level, two-position configuration.
- IP20 protection at the main terminals.
- Screwless protective earth contact with the DIN rail.
- Green-and-yellow polyamide housing.
Reliable Protective Earth Connections with ADO Technology
Protective earth terminal blocks connect equipment grounding conductors to the DIN rail and ultimately to the panel grounding system. The D2.5/8.P.ADO uses a screwless rail contact that is independent of operator-applied torque, helping provide a consistent protective earth connection and secure mounting on the rail.
The ENTRELEC ADO System uses insulation displacement connection technology for rapid conductor termination. This makes the D2.5/8.P.ADO particularly useful in high-volume panel building and industrial applications where fast installation, vibration resistance and repeatable connection quality are important.
Typical Applications
- Protective earth and grounding circuits.
- Industrial electrical control panels.
- Factory automation equipment.
- Machine control cabinets.
- Switchgear and electrical distribution systems.
- PLC and instrumentation panels.
- DIN rail terminal assemblies.
- OEM machinery and production equipment.
Technical Specifications
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| Number of Levels | 1 | |
|---|---|---|
| Connection | IDC (ADO) | |
| Terminal Type | Earth (PE) | |
| Conductor Size | 2.5 mm² | |
| Product Series | TE SNA ADO | |
| Colour | Green/Yellow | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | SNA ADO | |
| Model | D2.5/8.P.ADO | |
| Part number | 1SNA199091R1700 | |
| Product type | Ground / protective earth terminal block | |
| Block function | Ground | |
| Connection technology | ADO / ADO insulation displacement connection | |
| Rail connection | Screwless protective earth contact | |
| Rated cross-section | 2.5 mm² | |
| Conductor capacity | 1–2.5 mm² | |
| UL conductor size | 14 AWG | |
| Short-time withstand current | 300 A for 1 s | |
| Terminal spacing | 8 mm | |
| Number of positions | 2 | |
| Number of levels | 1 | |
| Protection rating | IP20 at main terminals | |
| Colour | Green / yellow | |
| Insulation material | Polyamide | |
| Flammability rating | UL 94 V-0 | |
| Mounting | 35 mm DIN rail | |
| Compatible DIN rails | TH35-7.5 / TH35-15 | |
| Operating temperature | -55 to +110 °C | |
| Storage temperature | -55 to +110 °C | |
| Dimensions (H × W × D) | 50 × 8 × 41 mm | |
| Product net weight | 9 g | |
| EAN | 3472591990911 | |
| Pack quantity | 50 | |
| Country of origin | Poland |
Frequently Asked Questions
What is the TE Connectivity 1SNA199091R1700 used for?
The D2.5/8.P.ADO is a protective earth terminal block designed to connect grounding conductors to the DIN rail in industrial electrical panels and equipment.
What conductor sizes can the D2.5/8.P.ADO accept?
The terminal accepts copper conductors from 1–2.5 mm² and has a rated cross-section of 2.5 mm².
What connection technology does the D2.5/8.P.ADO use?
It uses the TE Connectivity ENTRELEC ADO System, a screwless insulation displacement connection technology, on both conductor connections.
What is the short-time withstand current?
The D2.5/8.P.ADO has a short-time withstand current rating of 300 A for 1 s.
How is the 1SNA199091R1700 mounted?
The terminal mounts on TH35-7.5 or TH35-15 DIN rail and uses a screwless, operator-independent contact to establish its protective earth connection to the rail.
Trusted Industrial Terminal Connection Technology
TE Connectivity ENTRELEC SNA ADO ground terminals combine screwless conductor termination with reliable rail contact, helping panel builders create fast, secure and clearly identified protective earth connections in industrial electrical systems.
