TE Connectivity / Entrelec 1SNA631180R2100 BUNI-20-L is a 16-channel universal interface with LED indication, a 20-pole Omniconnect connection and pluggable screw-clamp terminals for industrial automation and control-panel wiring.
£485.37
The TE Connectivity / Entrelec 1SNA631180R2100 is a compact and versatile BUNI-20-L 16-channel universal interface with LED indication designed to simplify multi-channel wiring in industrial control panels, machinery and automation systems. Part of the established Entrelec Interfast MS range, it provides an organised interface between field wiring and automation equipment through a 20-pole Omniconnect connection and pluggable screw-clamp terminals.
Unlike the standard BUNI-20, the BUNI-20-L incorporates LED indication to provide clear visual status information for the connected channels. This makes commissioning, fault finding and routine maintenance more efficient, while the modular interface architecture helps reduce conventional point-to-point wiring and keeps electrical cabinets organised.
The 1SNA631180R2100 supports a maximum voltage of 30 V DC, a maximum current of 2 A per point and up to 5 A in common conductors. With 16 channels, a 20-pole Omniconnect interface and compatibility with standard 35 mm DIN rails, it provides a practical solution for PLC I/O, machine control and industrial signal-interface applications.
Universal interface modules provide a structured method of connecting multiple automation signals between control equipment and field wiring. By consolidating individual connections into a multi-channel interface, the BUNI-20-L can reduce wiring complexity, improve panel organisation and make installation and servicing more efficient.
The BUNI-20-L adds integrated LED indication to this modular architecture, allowing engineers to identify channel status visually during commissioning and troubleshooting. Combined with its 20-pole Omniconnect interface, pluggable screw-clamp connections and configurable commoning arrangement, it is well suited to PLC, machine control and industrial automation installations.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | Interfast MS |
| Model | BUNI-20-L |
| Manufacturer part number | 1SNA631180R2100 |
| Product type | Universal interface module with LED indication |
| Number of channels | 16 |
| Connector type | Omniconnect 20-pole |
| Connection type | Pluggable / screw clamp |
| LED indication | Yes |
| Maximum voltage | 30 V DC |
| Maximum current per point | 2 A |
| Maximum current in common conductors | 5 A |
| Current per LED | 5 mA |
| Wire capacity | 0–2.5 mm² |
| UL/CSA connecting capacity | Stranded conductor up to 12 AWG |
| Wire stripping length | 10 mm |
| Recommended screwdriver | 3.5 mm |
| Pollution degree | 2 |
| Flammability rating | UL94 V0 |
| Operating temperature | -20 to +60 °C |
| Storage temperature | -40 to +80 °C |
| Mounting type | DIN rail |
| Compatible DIN rails | TH35-7.5 and TH35-15 |
| Dimensions (H × W × D) | 85 × 112 × 106 mm |
| Weight | approx. 0.58 kg |
| Barcode / EAN | 3472596311803 |
The 1SNA631180R2100 BUNI-20-L is a 16-channel universal interface used to organise and simplify multi-channel connections between automation equipment and field wiring while providing visual LED status indication.
The BUNI-20-L provides 16 channels and uses a 20-pole Omniconnect interface for multi-channel industrial connectivity.
The BUNI-20-L has a maximum voltage of 30 V DC, with a maximum current of 2 A per point and up to 5 A in common conductors.
Yes. The BUNI-20-L includes LED indication, providing convenient visual status information that can assist with commissioning, diagnostics and maintenance.
The BUNI-20-L is designed for mounting on TH35-7.5 and TH35-15 DIN rails in accordance with IEC 60715, making it suitable for standard industrial electrical cabinets.
TE Connectivity / Entrelec Interfast interface modules provide machine builders, panel builders and automation engineers with organised multi-channel connectivity designed to simplify control wiring, improve diagnostics and support reliable industrial automation systems.
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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...