TE Connectivity 1SNA399231R0700 D1/5.SNT2.ADO is a 5 mm wide SNA ADO knife-blade disconnect terminal block with 2 mm test sockets, a 10 A rated current and a 320 V IEC rated voltage for industrial control and testing circuits.
£4.50
The TE Connectivity 1SNA399231R0700, also identified as D1/5.SNT2.ADO, is a compact ADO disconnect terminal block with knife-blade disconnection and integrated test sockets. Part of the Entrelec SNA ADO terminal block range, it is designed for control and automation circuits where reliable conductor termination, convenient circuit isolation and accessible electrical testing are required.
The D1/5.SNT2.ADO uses the established ADO insulation displacement connection technology, providing a secure connection without conventional screw clamping. Its manually operated disconnect blade enables individual circuits to be opened for testing, commissioning, troubleshooting or maintenance, while 2 mm test sockets on both sides provide convenient access for compatible test equipment.
With a compact 5 mm width, a rated current of 10 A and an IEC rated voltage of 320 V, this grey terminal block is well suited to densely populated industrial control panels. It mounts on standard 35 mm DIN rail and accepts ADO conductor sizes up to a nominal 1 mm².
Disconnect terminal blocks allow individual electrical circuits to be opened without removing conductors from their terminals. The D1/5.SNT2.ADO incorporates a manually operated knife blade, allowing engineers to isolate a circuit quickly during commissioning, measurement, fault finding and scheduled maintenance.
The integrated test sockets provide convenient measurement points while the ADO connection system delivers a secure conductor interface suited to demanding industrial environments. Combined with its narrow profile and standard DIN rail mounting, the D1/5.SNT2.ADO is particularly effective in control cabinets where high connection density, reliable identification and straightforward testing are important.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | SNA ADO |
| Model | D1/5.SNT2.ADO |
| Manufacturer part number | 1SNA399231R0700 |
| Product type | Knife-blade disconnect terminal block with test sockets |
| Connection technology | ADO insulation displacement connection |
| Rated voltage (IEC) | 320 V |
| Rated current | 10 A |
| Rated impulse withstand voltage | 4,000 V |
| Nominal conductor cross-section | 1 mm² |
| Solid conductor range | 0.2–1 mm² |
| Flexible conductor range | 0.22–1 mm² |
| Test socket diameter | 2 mm |
| Number of levels | 1 |
| Clamping positions per level | 2 |
| Colour | Grey |
| Insulating material | Thermoplastic |
| Flammability classification | V0 |
| Protection rating | IP20 |
| Mounting | TH35-7.5 / TH35-15 DIN rail |
| Operating temperature | -55 to +110 °C |
| Dimensions (W × H × D) | 5 × 68.5 × 44.5 mm |
| Product net weight | 9 g |
| Pack quantity | 50 pieces |
| EAN | 3472593992319 |
The D1/5.SNT2.ADO is a disconnect terminal block used to terminate, isolate and test conductors in industrial control, automation and instrumentation circuits.
The terminal block has an IEC rated voltage of 320 V and a rated current of 10 A.
Yes. It incorporates 2 mm test sockets on both sides, allowing compatible test equipment to access the circuit conveniently.
The ADO connection accepts solid conductors from approximately 0.2–1 mm² and flexible conductors from 0.22–1 mm², with a nominal cross-section of 1 mm².
The terminal block is designed for installation on standard 35 mm DIN rail, including TH35-7.5 and TH35-15 rail profiles.
TE Connectivity / Entrelec SNA ADO terminal blocks provide panel builders, automation engineers and industrial maintenance teams with compact, dependable connection technology for control, testing and signal-distribution applications.
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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...