We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
USC-B3-R20 Unitronics Unistream PLC with 10 digital/2 analog inputs and 8 relay outputs
MPN: USC-B3-R20
Alt. SKU: USCB3R20
Special Price
£342.72
£285.60
Regular Price
£403.20
Why Choose the Unitronics USC-B3-R20 UniStream PLC?
The Unitronics USC-B3-R20 is a DIN-rail mounted UniStream programmable logic controller designed for modern industrial automation systems. It combines a powerful PLC CPU with built-in digital and analogue I/O, advanced networking capabilities and a virtual HMI, allowing engineers to control machines and processes without requiring a separate display panel.
Part of the Unitronics UniStream Basic series, the USC-B3-R20 provides an integrated I/O configuration including 10 digital inputs, 2 analogue inputs and 8 relay outputs. This makes it suitable for machine automation, process control and OEM equipment where compact, high-performance PLC control is required.
The controller supports advanced industrial communication protocols and remote connectivity features, enabling integration with SCADA systems, IIoT platforms and industrial networks while maintaining reliable real-time control performance.
Key Features
- UniStream programmable logic controller with integrated I/O.
- 10 digital inputs (24 V DC sink/source).
- 2 analogue inputs supporting 0–10 V and 0–20 mA signals.
- 8 relay outputs for switching industrial loads.
- Virtual HMI capability for operator interfaces via remote displays.
- Ethernet and USB communication ports for programming and networking.
- Supports Modbus, EtherNet/IP, CANopen and other industrial protocols.
- Designed for scalable automation systems with expansion options.
Technical Specifications
- Manufacturer: Unitronics
- Model: USC-B3-R20
- Product type: Programmable Logic Controller (PLC)
- Series: UniStream Basic
- Digital inputs: 10 — 24 V DC sink/source
- Analogue inputs: 2 — 0–10 V / 0–20 mA, 12-bit resolution
- Outputs: 8 — relay outputs (SPST-NO)
- Total I/O count: 20
- Supply voltage: 24 V DC (20.4–28.8 V DC)
- Memory: approx. 256 MB RAM with system and user ROM storage
- Communication: Ethernet, USB, optional serial and CAN expansion
- Mounting: DIN rail
- Ingress protection: IP20 / NEMA 1
- Operating temperature: −20 °C to +55 °C
Typical Applications
- Industrial machine automation systems.
- Manufacturing process control.
- Packaging and material handling equipment.
- OEM machinery and industrial control panels.
- Distributed automation systems with remote monitoring.
Frequently Asked Questions
What I/O does the USC-B3-R20 include?
The PLC includes 10 digital inputs, 2 analogue inputs and 8 relay outputs integrated into the controller.
What power supply does the controller require?
The device operates from a 24 V DC supply with a permissible range of approximately 20.4 to 28.8 V DC.
Does the USC-B3-R20 support analogue signals?
Yes. The controller includes two analogue inputs supporting 0–10 V and 0–20 mA signals with 12-bit resolution.
Can the PLC communicate with industrial networks?
Yes. UniStream controllers support Ethernet communication and industrial protocols such as Modbus, CANopen and EtherNet/IP.
How is the controller mounted?
The USC-B3-R20 is designed for DIN-rail mounting within industrial control cabinets.
Trusted by Automation Engineers
UniStream PLCs are widely used by machine builders and system integrators due to their integrated I/O, networking capabilities and flexible automation programming environment.
| PLC Range | Unitronics Unistream |
|---|---|
| Digital Isolated Input | 10 x Sink/Source |
| Number of analogue inputs | 2 x 0-10V, 0-20mA, 4-20mA, 12 Bit |
| Number of relay outputs | 8 |
| Software Included | Unicloud can be added |
| Manufacturer | Unitronics |
| Manufacturer Part Number | USC-B3-R20 |
| Module type | PLC Only |
| Alternative Product SKU | USCB3R20 |
Write Your Own Review
