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1sna399942r0000 – d4/8,s,2a,ado2 orange
TE Connectivity D4/8.S.2A.ADO2 1SNA399942R0000 is an orange 2.5 mm², 10 A, 500 V disconnect terminal block with plug, combining ADO System and screw-clamp connections for industrial control wiring.
£2.83
Why Choose the TE Connectivity D4/8.S.2A.ADO2 Disconnect Terminal Block?
The TE Connectivity D4/8.S.2A.ADO2, part number 1SNA399942R0000, is an orange disconnect terminal block with plug from the Entrelec SNA ADO range. Combining an ADO System insulation displacement connection with a conventional screw clamp, it provides a practical interface for industrial control circuits that require both dependable conductor termination and convenient circuit disconnection.
The integrated disconnect component holder plug allows circuits to be opened when required for testing, commissioning, maintenance or troubleshooting. On the ADO side, the terminal supports up to two wires per connection, while the screw-clamp side accommodates conventional prepared conductors, providing flexibility when integrating different wiring methods within the same control panel.
Rated at 10 A and 500 V, with a rated cross-section of 2.5 mm², the D4/8.S.2A.ADO2 offers dependable performance in an 8 mm terminal width. It provides IP20 protection at the main terminals and mounts on standard TH 35-7.5 or TH 35-15 DIN rails.
Key Advantages
- Disconnect-with-plug configuration simplifies circuit isolation for testing and maintenance.
- Combines ADO System and screw-clamp connection technologies in one terminal.
- Supports up to two wires per ADO connection.
- 10 A rated current and 500 V rated voltage.
- Compact 8 mm spacing supports organised control-panel layouts.
- Compatible with standard TH 35 DIN rails for straightforward panel integration.
Key Features
- TE Connectivity / Entrelec D4/8.S.2A.ADO2 terminal block.
- Disconnect terminal with plug.
- ADO System / screw-clamp connection.
- 2.5 mm² rated cross-section.
- 10 A rated current.
- 500 V rated voltage.
- 6 kV rated impulse withstand voltage.
- 300 A short-time withstand current for 1 s.
- IP20 main-terminal protection.
- Distinctive orange polyamide housing.
Convenient Circuit Disconnection with ADO Wiring
Disconnect terminal blocks allow a circuit to be opened at the terminal strip without removing the connected conductors. The D4/8.S.2A.ADO2 incorporates a disconnect component holder plug, making it particularly useful where circuits need to be isolated during commissioning, diagnostics, testing or routine maintenance.
Its hybrid connection arrangement combines the speed of the Entrelec ADO System with the familiarity and flexibility of a standard screw clamp. The ADO connection can accept up to two wires, while the screw side accommodates rigid and flexible conductors up to 4 mm², helping simplify integration into existing industrial wiring practices.
Typical Applications
- Industrial control and automation panels.
- PLC input and output circuit wiring.
- Test and measurement circuits requiring convenient isolation.
- Machine-building electrical systems.
- Instrumentation and process-control cabinets.
- DIN rail assemblies requiring disconnectable control circuits.
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 | Orange | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | SNA ADO | |
| Model | D4/8.S.2A.ADO2 | |
| Manufacturer part number | 1SNA399942R0000 | |
| Product type | IDC disconnect terminal block | |
| Function | Disconnect | |
| Disconnect type | Disconnect with plug | |
| Connection technology | Screw clamp / ADO System | |
| Number of levels | 1 | |
| Rated cross-section | 2.5 mm² | |
| Rated current | 10 A | |
| Rated voltage | 500 V | |
| Rated impulse withstand voltage | 6000 V | |
| Rated short-time withstand current | 300 A for 1 s | |
| Screw-clamp rigid conductor capacity | 0.2–4 mm² | |
| Screw-clamp flexible conductor capacity | 0.22–4 mm² | |
| UL/CSA conductor capacity | 14 AWG stranded | |
| Maximum wires per ADO connection | 2 | |
| Terminal spacing / width | 8 mm | |
| Wire stripping length | 9.5 mm | |
| Recommended screwdriver | 4 mm | |
| Tightening torque | 0.5 N·m to IEC 60947-1 | |
| DIN rail compatibility | TH 35-7.5 / TH 35-15 | |
| Protection rating | IP20 | |
| Pollution degree | 3 | |
| Insulation material | Polyamide | |
| Colour | Orange | |
| Operating temperature | -55 to +110 °C | |
| Storage temperature | -55 to +110 °C | |
| Dimensions (H × W × D) | 66 × 8 × 40.5 mm | |
| Net weight | 14 g | |
| Pack quantity | 50 pieces | |
| EAN | 3472593999424 |
Frequently Asked Questions
What is the TE Connectivity D4/8.S.2A.ADO2 1SNA399942R0000?
The D4/8.S.2A.ADO2 is an orange disconnect terminal block with plug that combines an ADO System insulation displacement connection with a conventional screw-clamp connection.
What are the rated current and voltage of the D4/8.S.2A.ADO2?
The terminal has a rated current of 10 A and a rated voltage of 500 V, with a rated cross-section of 2.5 mm².
What is the purpose of the disconnect plug?
The disconnect component holder plug allows the electrical circuit to be opened at the terminal, making circuit isolation more convenient during testing, commissioning, diagnostics and maintenance.
What connection technology does 1SNA399942R0000 use?
The D4/8.S.2A.ADO2 combines a screw-clamp connection with the Entrelec ADO System, allowing conventional prepared conductors and insulation-displacement wiring to be used within the same terminal.
What conductor sizes can the screw-clamp side accept?
The screw-clamp connection accepts rigid conductors from 0.2–4 mm² and flexible conductors from 0.22–4 mm².
Which DIN rails are compatible with the D4/8.S.2A.ADO2?
The terminal is designed for mounting on standard TH 35-7.5 and TH 35-15 DIN rails.
Trusted for Industrial Disconnect and Control Wiring
TE Connectivity / Entrelec ADO disconnect terminals combine convenient circuit isolation with flexible conductor termination, providing a practical solution for professional industrial control, automation, testing and machine-building electrical systems.
