TE Connectivity BNMS R24V-1 1SNA031820R1400 is a compact 24 V DC plug-in interface relay with one SPDT contact, up to 6 A switching current and 4 kV coil-to-contact isolation for industrial control and automation systems.
£12.89
The TE Connectivity BNMS R24V-1, manufacturer part number 1SNA031820R1400, is a compact industrial 24 V DC relay plug designed for use with compatible Entrelec interface terminal blocks and relay systems. Featuring a 1 SPDT changeover contact, it provides dependable electrical switching and isolation between control signals and connected field circuits.
The BNMS R24V-1 operates across a coil voltage range of 20.4–28.8 V DC with a maximum coil current of just 7 mA. Its relay contact can switch up to 6 A at 250 V, making the module suitable for a wide variety of PLC interfacing, control-panel and industrial automation applications.
With a compact width of approximately 5 mm and depth of 38 mm, the plug-in relay provides high-density switching capability while remaining easy to replace during maintenance. The relay also provides 4 kV coil-to-contact isolation, fast changeover operation and a UL94 V-0 rated housing for dependable use in industrial control environments.
Interface relays provide electrical separation between low-power PLC or controller outputs and the circuits they need to switch. The BNMS R24V-1 combines a low-current DC coil with an SPDT changeover contact, allowing a 24 V DC control signal to operate compatible AC or DC loads while maintaining galvanic separation between the control and contact sides.
Its plug-in format makes the relay particularly practical in modular control-panel installations. If a relay requires replacement, the plug can be exchanged without replacing the complete compatible terminal assembly, helping simplify maintenance while its narrow construction supports space-efficient, high-density automation systems.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Model | BNMS R24V-1 |
| Manufacturer part number | 1SNA031820R1400 |
| Product type | Plug-in interface relay |
| Contact configuration | 1 SPDT / changeover contact |
| Coil voltage range | 20.4–28.8 V DC |
| Maximum coil current | 7 mA |
| Trip voltage | 1.2 V |
| Contact voltage range | 12–250 V |
| Switching current range | 10 mA–6 A |
| Maximum resistive AC switching power | 1500 VA |
| Maximum resistive DC switching power | 140 W |
| Operating / release time | 6 ms / 8 ms |
| Contact bounce | 1.5 ms |
| Coil-to-contact isolation | 4 kV |
| Coil-to-contact impulse withstand | 4 kV |
| Width | 5 mm |
| Depth | 38 mm |
| Net weight | approx. 7 g |
| Pollution degree | 3 |
| Flammability rating | UL94 V-0 |
| ETIM classification | EC000196 – Contactor relay |
| Pack quantity | 4 |
| EAN / barcode | 3472590318204 |
The BNMS R24V-1 is a 24 V DC plug-in interface relay used to switch and electrically isolate control signals in PLC, machinery and industrial automation systems.
The BNMS R24V-1 provides one SPDT changeover contact, allowing the relay to provide normally open and normally closed switching functions through a common contact.
The relay is intended for 24 V DC systems and has a specified coil operating voltage range of 20.4–28.8 V DC, with a maximum coil current of 7 mA.
The BNMS R24V-1 has a specified contact voltage range of 12–250 V and a switching current range of 10 mA–6 A, subject to the applicable load category and operating conditions.
The BNMS R24V-1 provides 4 kV coil-to-contact isolation, helping maintain electrical separation between the low-voltage control circuit and the switched contact circuit.
TE Connectivity Entrelec plug-in relay solutions provide compact and serviceable switching for industrial automation, helping panel builders achieve dependable electrical isolation, flexible control and efficient use of cabinet space.
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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...