URD-0008SM-8 – Unitronics RO8,MOS,110VDC/AC,1A,18R

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

The Unitronics URD-0008SM-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 AC or DC loads up to 110 V, enabling reliable control of actuators, signalling devices, relays and other field equipment in distributed PLC automation systems.

As part of the UniStream remote I/O architecture, the URD-0008SM-8 connects to an Ethernet remote I/O adapter which communicates with the main PLC controller. This distributed design allows engineers to place I/O modules close to machines and sensors, reducing wiring complexity while allowing flexible system expansion across industrial production lines.

Using MOS solid state relay technology, the module provides silent switching, rapid response and long operational life compared with mechanical relay outputs, making it suitable for modern machine automation and process control systems.

Key Advantages

• Eight solid state relay outputs for industrial automation control.
• AC or DC load switching up to 110 VAC / 110 VDC.
• Fast switching response 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 panels.

Key Features

• 8 × solid state relay outputs.
• Output type: MOS solid state relay.
• Maximum load voltage: 110 VAC / 110 VDC.
• Typical output current: up to 1 A per channel.
• LED indicators showing output status.
• Removable terminal block for simple field wiring.
• DIN rail mounting for industrial control cabinets.

Technical Specifications

• Manufacturer: Unitronics
• Series: UniStream Remote I/O
• Model: URD-0008SM-8
• Module type: Solid state digital output module
• Outputs: 8 MOS solid state relay outputs
• Maximum load voltage: 110 VAC / 110 VDC
• Output current: up to 1 A per channel
• 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 by allowing input and output modules to be installed near field equipment rather than inside a central PLC cabinet. Multiple modules can be connected to a single remote adapter on a DIN rail, enabling scalable system expansion across machines and production lines.

Solid state relay modules such as the URD-0008SM-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.