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1sna031847r1300 – bnms-r24vdc-2
TE Connectivity BNMS-R24VDC-2 1SNA031847R1300 is a 24 V DC plug-in interface relay with one SPDT contact, a 1 mA to 6 A switching range and 4 kV coil-to-contact isolation for industrial automation and PLC interfacing.
Why Choose the TE Connectivity BNMS-R24VDC-2 Relay Plug?
The TE Connectivity BNMS-R24VDC-2, manufacturer part number 1SNA031847R1300, is a compact industrial 24 V DC plug-in relay designed for compatible Entrelec Interfast interface systems. Featuring a 1 SPDT changeover contact, it provides dependable switching and galvanic isolation between PLC or controller signals and connected field circuits.
The BNMS-R24VDC-2 operates across a coil voltage range of 20.4–28.8 V DC with a maximum coil current of 7 mA. Its contact system supports voltages from 5–250 V and switching currents from 1 mA–6 A, giving this R24V-2 variant improved low-level switching capability compared with the R24V-1 version.
Designed for industrial automation, the relay provides 4 kV coil-to-contact isolation and switching capability up to 1500 VA for resistive AC loads or 140 W for resistive DC loads. Its plug-in format makes it particularly useful for modular PLC interfaces and control panels where compact installation, straightforward replacement and reliable circuit isolation are required.
Key Advantages
- Compact 24 V DC plug-in relay for industrial automation and PLC interfacing.
- 1 SPDT changeover contact provides flexible normally open and normally closed switching.
- Wide contact voltage range of 5–250 V.
- Switching current range of 1 mA–6 A supports both low-level signals and higher-current control loads.
- 4 kV coil-to-contact isolation provides effective separation between control and switched circuits.
- Plug-in construction simplifies servicing and relay replacement in compatible Interfast assemblies.
Key Features
- TE Connectivity / Entrelec BNMS-R24VDC-2 relay plug.
- 20.4–28.8 V DC coil voltage range.
- Maximum coil current of 7 mA.
- 1 SPDT relay contact configuration.
- Contact voltage range of 5–250 V.
- Switching current range of 1 mA–6 A.
- Maximum resistive switching capacity of 1500 VA AC / 140 W DC.
- Designed for compatible Entrelec Interfast industrial interface systems.
Low-Level and General-Purpose Relay Switching for Automation
Interface relays provide galvanic separation between PLC or controller electronics and field-side circuits while allowing a low-power control signal to operate another electrical load. The BNMS-R24VDC-2 combines a 24 V DC coil with a single SPDT contact and is particularly useful where both conventional control loads and low-level signals may need to be switched.
The R24V-2 variant has a specified minimum contact voltage of 5 V and minimum switching current of 1 mA, compared with 12 V and 10 mA for the R24V-1. This makes the BNMS-R24VDC-2 especially useful for applications requiring reliable switching at lower signal levels while retaining a maximum switching current of 6 A.
Typical Applications
- PLC input and output interfacing.
- Low-level industrial signal switching.
- Industrial control panels and electrical cabinets.
- Machine control and factory automation systems.
- Signal isolation and relay decoupling circuits.
- Switching compatible AC and DC control loads.
Technical Specifications
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| Terminal Type | Pluggable connector | |
|---|---|---|
| Connection | Pluggable | |
| Product Series | TE Interfast | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | Interfast | |
| Model | BNMS-R24VDC-2 | |
| Manufacturer part number | 1SNA031847R1300 | |
| 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 | |
| Minimum / maximum contact voltage | 5 V / 250 V | |
| Minimum / maximum switching current | 1 mA / 6 A | |
| Minimum / maximum resistive AC switching power | 0.05 VA / 1500 VA | |
| Minimum / maximum resistive DC switching power | 0.05 W / 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 | |
| Contact-to-contact isolation | 1 kV | |
| Mechanical endurance | 10 × 106 operations off load | |
| Storage temperature | -40 to +80 °C | |
| Pack quantity | 4 | |
| EAN / barcode | 3472590318471 |
Frequently Asked Questions
What is the TE Connectivity BNMS-R24VDC-2 used for?
The BNMS-R24VDC-2 is a 24 V DC plug-in interface relay used for switching and galvanically isolating PLC, controller and field circuits in industrial automation systems.
What contact configuration does the BNMS-R24VDC-2 have?
The BNMS-R24VDC-2 provides one SPDT changeover contact, giving both normally open and normally closed switching functions through a common contact.
What is the coil voltage of the BNMS-R24VDC-2?
The relay is designed for 24 V DC control systems and has a specified coil voltage range of 20.4–28.8 V DC, with a maximum coil current of 7 mA.
What is the difference between the BNMS-R24VDC-2 and BNMS-R24VDC-1?
The R24VDC-2 is designed for lower-level switching, with a minimum contact voltage of 5 V and minimum switching current of 1 mA, compared with 12 V and 10 mA respectively for the R24VDC-1.
What switching capacity does the BNMS-R24VDC-2 provide?
The BNMS-R24VDC-2 supports switching currents up to 6 A, with maximum resistive switching capacities of 1500 VA AC and 140 W DC, subject to the applicable voltage, load category and operating conditions.
Trusted Industrial Relay Interface Technology
TE Connectivity Entrelec plug-in relay solutions provide compact and serviceable switching for industrial automation, combining dependable galvanic isolation with flexible low-level and general-purpose load switching in modular control-panel installations.
