TE Connectivity / Entrelec 1SNA631151R2700 BUNI-20 is a 16-channel universal interface with a 20-pole Omniconnect connection, pluggable screw-clamp terminals and a maximum operating voltage of 250 V AC/DC for industrial automation wiring.
£334.30
The TE Connectivity / Entrelec 1SNA631151R2700 is a professional BUNI-20 universal interface module designed to simplify multi-channel wiring in industrial control panels and automation systems. Part of the established Entrelec Interfast MS range, the BUNI-20 provides a structured interface between field wiring and automation equipment using a 20-pole Omniconnect connection and screw-clamp terminals.
Designed as a 16-channel universal interface without LED indication, the BUNI-20 helps reduce conventional point-to-point wiring while improving organisation inside electrical cabinets. Its terminal block assembly incorporates removable comb-type jumper bars, allowing common connections to be configured or individual channels to be separated according to the requirements of the control system.
The 1SNA631151R2700 supports a maximum operating voltage of 250 V AC/DC, a maximum current of 2 A per point and up to 5 A in common conductors. DIN rail mounting and pluggable screw-clamp connectivity make it a practical solution for machine builders, panel builders and automation engineers requiring reliable, serviceable multi-channel connections.
Universal interface modules such as the Entrelec BUNI-20 provide a structured method of connecting multiple automation signals between control equipment and field wiring. By consolidating numerous individual connections into a multi-channel interface, they can reduce wiring complexity, improve panel organisation and make commissioning and maintenance more efficient.
The BUNI-20 combines a 20-pole Omniconnect interface with screw-clamp field connections and configurable commoning facilities. Its removable jumper arrangement allows engineers to create common connections or separate individual channels as required, making the module adaptable to a wide range of PLC, machine control and industrial automation applications.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | Interfast MS |
| Model | BUNI-20 |
| Alternative designation | (INT) BUNI 20 |
| Manufacturer part number | 1SNA631151R2700 |
| Product type | Universal interface module |
| Number of channels | 16 |
| Connector type | Omniconnect 20-pole |
| Connection type | Pluggable / screw clamp |
| LED indication | No |
| Maximum voltage | 250 V AC/DC |
| Maximum current per point | 2 A |
| Maximum current in common conductors | 5 A |
| Wire capacity | 0–2.5 mm² |
| UL/CSA connecting capacity | Stranded conductor up to 12 AWG |
| Wire stripping length | 10 mm |
| Pollution degree | 2 |
| Flammability rating | UL94 V0 |
| Operating temperature | -20 to +75 °C |
| Storage temperature | -40 to +80 °C |
| Mounting type | DIN rail |
| Compatible DIN rails | TH35-7.5 and TH35-15 |
| Dimensions (H × W × D) | approx. 85 × 112 × 106 mm |
| Weight | approx. 0.608 kg |
| Barcode / EAN | 3472596311513 |
The 1SNA631151R2700 BUNI-20 is a 16-channel universal interface used to organise and simplify multi-channel electrical connections in PLC, machine control and industrial automation systems.
The BUNI-20 provides 16 channels and uses a 20-pole Omniconnect interface for multi-channel connectivity.
The non-LED BUNI-20 supports a maximum voltage of 250 V AC/DC, with a maximum current of 2 A per point and up to 5 A in common conductors.
No. The 1SNA631151R2700 BUNI-20 is the universal interface version without LED indication.
The BUNI-20 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 serviceability and support reliable industrial automation systems.
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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...