URD-0008SN-8 – Unitronics RO8,MOS,24VDC/AC,2A,18R

Why Choose the Unitronics URD-0008SN-8 Solid State Output Module?

The Unitronics URD-0008SN-8 is a compact 8-channel solid state relay output module designed for the UniStream Remote I/O platform. It provides eight MOS solid state relay outputs capable of switching industrial loads up to 24 VAC or 24 VDC, making it suitable for controlling actuators, signalling devices, relays and other automation equipment within distributed PLC systems.

Installed as part of a UniStream remote I/O assembly, the URD-0008SN-8 connects to a remote Ethernet I/O adapter that communicates with the main PLC controller. This distributed architecture allows engineers to place I/O modules closer to field devices, reducing wiring complexity while allowing scalable automation systems.

By using MOS solid state relay technology, the module provides silent switching, rapid response and long operational life compared with mechanical relay outputs, making it ideal for machine automation and high-cycle industrial control environments.

Key Advantages

• Eight solid state relay outputs for industrial automation control.
• AC or DC load switching up to 24 VAC / 24 VDC.
• Fast switching performance suitable for high-cycle applications.
• Silent MOS relay operation with no mechanical wear.
• Designed for the Unitronics UniStream Remote I/O system.
• Ultra-slim DIN-rail module for compact control cabinets.

Key Features

• 8 × solid state relay outputs.
• Output type: MOS solid state relay.
• Maximum switching voltage: 24 VAC / 24 VDC.
• LED indicators showing output status.
• Removable terminal block for quick field wiring.
• DIN rail mounting for industrial control cabinets.

Technical Specifications

• Manufacturer: Unitronics
• Series: UniStream Remote I/O
• Model: URD-0008SN-8
• Module type: Solid state digital output module
• Outputs: 8 MOS solid state relay outputs
• Maximum load voltage: 24 VAC / 24 VDC
• Supply voltage: 24 V DC nominal
• Connection: removable terminal block
• Mounting: DIN rail
• Module dimensions: approx. 12 mm × 99 mm × 70 mm
• Operating temperature: −40 °C to +70 °C
• Protection rating: IP20

Distributed PLC Automation

UniStream Remote I/O modules enable distributed automation architectures where I/O modules can be installed near field equipment instead of inside a central PLC cabinet. A single UniStream adapter can support many 12 mm wide modules on a DIN rail, enabling flexible expansion across machines and production lines.

Solid state relay modules such as the URD-0008SN-8 provide maintenance-free switching and improved reliability in applications requiring frequent switching cycles.

Typical Applications

• Industrial machine automation systems.
• Control of relays, solenoids and actuators.
• Industrial signalling and indicator devices.
• Distributed PLC I/O architectures.
• Manufacturing and process automation equipment.

Trusted by Automation Engineers

Unitronics UniStream remote I/O modules are widely used by machine builders and automation engineers to create scalable distributed PLC control systems.