TE Connectivity / ENTRELEC 1SNA399898R0500 D2.5/5.D2.ADO is a grey 5 mm-wide double-deck feed-through DIN rail terminal block combining ADO System and screw-clamp connections with a 13.5 A current rating and 630 V rated voltage for high-density industrial control wiring.
£4.18
The TE Connectivity / ENTRELEC D2.5/5.D2.ADO, manufacturer part number 1SNA399898R0500, is a compact double-deck feed-through DIN rail terminal block designed for high-density industrial control and automation wiring. Combining ADO System insulation displacement technology with a conventional screw-clamp connection, it provides two connection levels within a housing only 5 mm wide, helping panel builders maximise available DIN rail space.
The D2.5/5.D2.ADO combines the speed and reliability of the ENTRELEC ADO System with the flexibility of standard screw-clamp termination. The ADO connection can accommodate up to two wires per connection, while the screw-clamp side supports conventional stripped conductors, making the terminal suitable for mixed field and internal panel wiring.
With a rated cross-section of 1 mm², rated current of 13.5 A and rated voltage of 630 V, the 1SNA399898R0500 is well suited to industrial signal, control and low-power distribution circuits. Its grey housing, IP20 protection and compatibility with standard TH 35 DIN rail make it a practical solution for machinery, process control and automation cabinets where high wiring density is required.
Double-deck terminal blocks provide two independent connection levels within a single terminal footprint, allowing substantially more circuits to be installed along a given length of DIN rail. The D2.5/5.D2.ADO achieves this within a width of only 5 mm, making it particularly useful for compact PLC cabinets, machine control panels and process automation systems.
The combination of ENTRELEC ADO System technology and conventional screw-clamp termination provides flexibility during panel assembly. ADO connections enable fast conductor termination and can accept up to two wires per connection, while the screw-clamp interface supports conventional wiring methods. This hybrid arrangement is useful where field wiring and internal control-panel conductors require different termination methods.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | ADO System |
| Model | D2.5/5.D2.ADO |
| Manufacturer part number | 1SNA399898R0500 |
| Product type | Double-deck IDC DIN rail terminal block |
| Function | Feed-through |
| Number of levels | 2 |
| Rated cross-section | 1 mm² |
| Rated current | 13.5 A |
| Rated voltage | 630 V |
| Rated impulse withstand voltage | 8,000 V |
| Spacing | 5 mm |
| Screw-clamp rigid conductor range | 0.2–4 mm² |
| Screw-clamp flexible conductor range | 0.22–2.5 mm² |
| Connection technology | Screw clamp / ADO System |
| ADO connection capacity | Up to 2 wires per connection |
| Gauge type | A3 |
| Protection rating | IP20 |
| Mounting type | TH 35-7.5 / TH 35-15 DIN rail |
| Operating temperature | -55–110 °C |
| Storage temperature | -55–110 °C |
| Colour | Grey |
| Width | 5 mm |
| Height | 84.5 mm |
| Depth | 68.5 mm |
| Weight | approx. 15 g |
| ETIM classification | EC000897 – Feed-through terminal block |
| Customs tariff number | 85369010 |
| Pack quantity | 50 |
| EAN | 3472593998984 |
The D2.5/5.D2.ADO is a double-deck feed-through DIN rail terminal block designed for high-density signal and control wiring in industrial automation, machinery and electrical control panels.
The terminal block has a rated current of 13.5 A, a rated voltage of 630 V and a rated cross-section of 1 mm².
The D2.5/5.D2.ADO combines a standard screw-clamp connection with ENTRELEC ADO System insulation displacement technology, providing flexible termination options for industrial panel wiring.
The terminal incorporates two connection levels within a housing only 5 mm wide, increasing wiring density and reducing the amount of DIN rail space required.
The screw-clamp connection accepts rigid conductors from 0.2–4 mm² and flexible conductors from 0.22–2.5 mm², while the ADO System supports up to two wires per connection.
TE Connectivity / ENTRELEC ADO double-deck terminal blocks provide panel builders, machine builders and automation engineers with compact, high-density industrial wiring solutions that combine fast ADO termination with the flexibility of conventional screw-clamp connections.
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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...