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1sna031839r1300 – bnms-a24vdc-4
TE Connectivity BNMS-A24VDC-4 1SNA031839R1300 is a 24 V DC triac output optocoupler plug providing 2.5 kV isolation and a 24–253 V AC solid-state output for industrial control and automation systems.
Why Choose the TE Connectivity BNMS-A24VDC-4 Optocoupler Plug?
The TE Connectivity BNMS-A24VDC-4, manufacturer part number 1SNA031839R1300, is a compact triac output optocoupler plug designed for electrical isolation and switching of AC loads in industrial control and automation systems. Part of the established Entrelec INTERFAST MS / BNMS interface range, it provides reliable solid-state interfacing between 24 V DC control signals and AC output circuits.
Designed for plug-in installation, the BNMS-A24VDC-4 enables low-power DC control equipment such as PLCs and automation controllers to switch AC loads while maintaining galvanic isolation between the input and output circuits. Its solid-state triac output eliminates mechanical contacts, providing dependable switching without the contact wear associated with conventional electromechanical relays.
The module accepts an input voltage of 20.4–28.8 V DC and provides an AC output operating range of 24–253 V AC. Input-to-output isolation is rated at 2.5 kV, while the compact 5.1 mm plug-in format makes the device particularly suitable for high-density industrial interface and control-panel applications.
Key Advantages
- Compact triac output optocoupler plug for industrial control systems.
- 20.4–28.8 V DC input range suited to nominal 24 V DC control circuits.
- Switches AC loads across a broad 24–253 V AC output range.
- 2.5 kV input/output isolation separates control and load circuits.
- Solid-state switching avoids mechanical contact wear and contact bounce.
- Low 3.8 mA maximum input current reduces the load placed on control outputs.
- Slim 5.1 mm plug-in design supports space-efficient control-panel installations.
Key Features
- TE Connectivity / Entrelec BNMS interface module.
- Triac output optocoupler configuration.
- Nominal 24 V DC control input.
- 20.4–28.8 V DC input voltage range.
- 3.8 mA maximum input current.
- 10 V DC typical triggering threshold.
- 24–253 V AC output voltage range.
- 1 A output optocoupler class, subject to the manufacturer's derating curve.
- 2.5 kV input/output isolation.
- Plug-in mounting for modular industrial interface systems.
Reliable Solid-State Interfacing for Industrial Control
Optocoupler interface modules electrically separate sensitive control electronics from switched load circuits. In the BNMS-A24VDC-4, a 24 V DC control signal operates a solid-state triac output, allowing AC equipment to be controlled without a direct electrical connection between the control and output sides.
The combination of 2.5 kV galvanic isolation, low input current and a wide AC output voltage range makes this module well suited to PLC interfaces, machine controls and automated production equipment. Its plug-in construction also simplifies installation and replacement within compatible modular interface assemblies.
Typical Applications
- PLC output interfacing and signal isolation.
- Industrial automation and machine control systems.
- Switching AC loads from 24 V DC control signals.
- Electrical control panels and switchgear assemblies.
- Production and process automation equipment.
- OEM machinery and modular interface systems.
Technical Specifications
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| Terminal Type | Pluggable connector | |
|---|---|---|
| Connection | Pluggable | |
| Product Series | TE Interfast | |
| Colour | Red | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | BNMS / INTERFAST MS | |
| Model | BNMS-A24VDC-4 | |
| Manufacturer part number | 1SNA031839R1300 | |
| Product type | Triac output optocoupler plug | |
| Nominal input voltage | 24 V DC | |
| Input voltage range | 20.4–28.8 V DC | |
| Maximum input current | 3.8 mA | |
| Typical triggering threshold | 10 V DC | |
| Switching time (C/O) | 9.5 ms / 12 ms | |
| Output type | Triac / AC solid-state output | |
| Output voltage range | 24–253 V AC | |
| Output class | 1 A, subject to derating | |
| Typical residual voltage | 1 V AC | |
| Maximum residual voltage | 1.3 V AC | |
| Input/output isolation | 2.5 kV | |
| Operating temperature | -20 to +70 °C | |
| Storage temperature | -30 to +80 °C | |
| Mounting type | Plug-in | |
| Width / pitch | 5.1 mm | |
| Colour | Red |
Frequently Asked Questions
What is the TE Connectivity BNMS-A24VDC-4 used for?
The BNMS-A24VDC-4 is a triac output optocoupler plug used to isolate a DC control circuit while switching an AC load in industrial automation and control applications.
What input voltage does the BNMS-A24VDC-4 accept?
The module is intended for nominal 24 V DC control systems and has a specified input voltage range of 20.4–28.8 V DC.
What output voltage can the BNMS-A24VDC-4 switch?
The triac output is designed for AC circuits across a 24–253 V AC output voltage range, with permissible current dependent on the manufacturer's derating curve.
Does the BNMS-A24VDC-4 provide electrical isolation?
Yes. The module provides 2.5 kV input-to-output isolation, helping protect and electrically separate the control circuit from the switched AC circuit.
Where is the BNMS-A24VDC-4 typically installed?
It is typically used as a plug-in interface module in industrial electrical panels, PLC control systems, machinery and automation equipment where compact isolated solid-state switching is required.
Trusted Industrial Interface Technology
TE Connectivity and Entrelec interface components are designed for dependable signal conditioning, isolation and switching in industrial control panels, helping automation engineers create compact and reliable connections between control electronics and field equipment.
