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1sna399766r1700 – d4/8,snnt2,i,ado2
TE Connectivity D4/8.SNNT2.I.ADO2 1SNA399766R1700 is a 2.5 mm² disconnect DIN rail terminal block rated at 6.3 A and 630 V with a lever, two 2 mm test sockets and combined screw-clamp and ADO System connections for industrial control and test circuits.
£4.71
Why Choose the TE Connectivity D4/8.SNNT2.I.ADO2 1SNA399766R1700 Disconnect Terminal Block?
The TE Connectivity D4/8.SNNT2.I.ADO2 1SNA399766R1700 is a compact disconnect terminal block with lever, two test sockets and combined screw-clamp / ADO System connection technology, designed for test, measurement and isolation circuits in industrial control panels and automation systems. Part of the established Entrelec SNA ADO range, it combines conventional screw termination with fast insulation-displacement wiring.
The D4/8.SNNT2.I.ADO2 incorporates a disconnect mechanism that allows a circuit to be opened for testing, commissioning or maintenance without removing conductors. Two integrated 2 mm test sockets provide convenient measurement access, while the ADO System connection can accept up to two conductors per connection for efficient panel wiring.
With a 2.5 mm² rated cross-section, 6.3 A rated current and 630 V rated voltage, this single-level terminal is suitable for demanding control and instrumentation circuits. Its compact 8 mm width, DIN rail mounting and broad conductor compatibility make it particularly useful in densely populated industrial cabinets.
Key Advantages
- Disconnect terminal block with lever for convenient circuit isolation.
- Integrated two 2 mm test sockets simplify measurement and diagnostics.
- Combines screw-clamp and ADO System insulation-displacement connections.
- 6.3 A rated current and 630 V rated voltage.
- Supports up to two wires per ADO System connection.
- Compact 8 mm width helps optimise DIN rail space.
- Suitable for standard TH35-7.5 and TH35-15 DIN rails.
Key Features
- TE Connectivity / Entrelec SNA ADO terminal block.
- D4/8.SNNT2.I.ADO2 disconnect configuration.
- Disconnect function with operating lever.
- Two integrated 2 mm test sockets.
- 2.5 mm² rated cross-section.
- 6.3 A IEC rated current.
- 630 V IEC rated voltage.
- Screw-clamp connection for rigid conductors from 0.2–4 mm².
- Screw-clamp connection for flexible conductors from 0.22–4 mm².
- ADO connection designed for 1–2.5 mm² conductors.
- Single-level terminal construction.
- Grey / blue insulating body.
Reliable Disconnect and ADO Connection Technology
Disconnect terminal blocks allow technicians to open individual circuits at the terminal strip for measurement, testing and maintenance. The D4/8.SNNT2.I.ADO2 combines this functionality with two dedicated test sockets, making circuit access straightforward while helping maintain an organised panel layout.
Its hybrid connection system combines the flexibility of a standard screw clamp with the fast ADO System insulation-displacement connection. This makes the terminal particularly suitable for industrial applications where rapid panel assembly, reliable conductor retention and convenient diagnostic access are important.
Typical Applications
- Industrial electrical control panels.
- Test and measurement circuits.
- PLC and automation cabinets.
- Instrumentation and signal wiring.
- Machine-building electrical systems.
- Process-control installations.
- Circuit isolation and commissioning.
- Industrial maintenance and troubleshooting.
Technical Specifications
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| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE SNA ADO | |
| Connection | IDC (ADO) | |
| Terminal Type | Disconnect / Test | |
| Conductor Size | 2.5 mm² | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | SNA ADO | |
| Model | D4/8.SNNT2.I.ADO2 | |
| Part number | 1SNA399766R1700 | |
| Product type | Disconnect IDC terminal block | |
| Function | Disconnect with lever and test sockets | |
| Connection technology | Screw clamp / ADO System | |
| Number of levels | 1 | |
| Rated cross-section | 2.5 mm² | |
| Rated current | 6.3 A | |
| Rated voltage | 630 V | |
| Screw-clamp rigid conductor range | 0.2–4 mm² | |
| Screw-clamp flexible conductor range | 0.22–4 mm² | |
| ADO conductor range | 1–2.5 mm² | |
| Test sockets | 2 × 2 mm diameter | |
| Width / spacing | 8 mm | |
| Height | 68.2 mm | |
| Depth | 40.9 mm | |
| Mounting type | 35 mm DIN rail | |
| Compatible rails | TH35-7.5 / TH35-15 | |
| Insulating body material | Thermoplastic | |
| Colour | Grey / blue | |
| Operating temperature | -55 to +110 °C | |
| Product weight | 13 g | |
| Pack quantity | 50 pieces | |
| EAN | 3472593997666 |
Frequently Asked Questions
What is the TE Connectivity D4/8.SNNT2.I.ADO2 1SNA399766R1700 used for?
It is a disconnect terminal block used for industrial control, test and measurement circuits where convenient electrical isolation and diagnostic access are required.
What connection technology does the D4/8.SNNT2.I.ADO2 use?
It combines a conventional screw-clamp connection with TE Connectivity / Entrelec ADO System insulation-displacement technology.
What are the electrical ratings of the 1SNA399766R1700?
The terminal block has a rated cross-section of 2.5 mm², rated current of 6.3 A and rated voltage of 630 V.
Does the D4/8.SNNT2.I.ADO2 include test sockets?
Yes. It incorporates two test sockets with a diameter of 2 mm for convenient electrical measurement and diagnostics.
How many 1SNA399766R1700 terminal blocks are supplied in a pack?
The manufacturer pack quantity is 50 pieces, with each terminal weighing approximately 13 g.
Trusted Industrial Connection Technology
TE Connectivity and Entrelec SNA ADO disconnect terminal blocks combine practical circuit isolation, test access and flexible conductor termination for professional industrial control, automation and machine-building installations.
