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USC-B3-T20 Unitronics Unistream PLC with 10 digital/2 analog inputs and 8 transistor outputs
MPN: USC-B3-T20
Alt. SKU: USCB3T20
Special Price
£342.72
£285.60
Regular Price
£403.20
Why Choose the Unitronics USC-B3-T20 UniStream PLC?
The Unitronics USC-B3-T20 is a DIN-rail mounted UniStream programmable logic controller designed for industrial automation systems that require integrated I/O, advanced networking and remote HMI functionality. The controller combines a powerful PLC CPU with built-in digital and analogue I/O, allowing machine builders and control engineers to manage sensors, actuators and automation processes from a single compact device.
Part of the UniStream Basic series, the USC-B3-T20 provides 10 digital inputs, 2 analogue inputs and 8 transistor outputs, including high-speed PWM outputs for motion and control applications. This configuration makes the controller suitable for machine automation, process control and OEM equipment installations.
The PLC supports advanced communication features including Ethernet networking and industrial protocols, enabling integration with SCADA systems, remote monitoring platforms and IIoT applications while maintaining reliable real-time machine control.
Key Features
- UniStream programmable logic controller with integrated I/O.
- 10 digital inputs (24 V DC sink or source).
- 2 analogue inputs supporting 0-10 V and 0-20 mA signals.
- 8 transistor outputs including 2 PWM outputs for high-speed control.
- Virtual HMI capability for operation via PC, mobile device or remote display.
- Dual Ethernet ports for networking and programming.
- USB host and USB device ports for configuration and data transfer.
- Supports industrial protocols including Modbus TCP, EtherNet/IP and CANopen.
Technical Specifications
- Manufacturer: Unitronics
- Model: USC-B3-T20
- 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 — transistor outputs (PNP)
- High-speed outputs: 2 — PWM channels
- Total I/O count: 20
- Supply voltage: 24 V DC (20.4 to 28.8 V DC)
- Memory: approx. 256 MB RAM, 3 GB system memory and 1 GB user memory
- Communication ports: 2 — Ethernet (RJ45), USB host and USB device
- Mounting: DIN rail
- Ingress protection: IP20 / NEMA 1
- Operating temperature: −20 °C to +55 °C
Typical Applications
- Industrial machine automation systems.
- Packaging, assembly and production equipment.
- OEM machinery and industrial control panels.
- Process monitoring and industrial control systems.
- Automation systems requiring remote monitoring and IIoT connectivity.
Frequently Asked Questions
What I/O configuration does the USC-B3-T20 provide?
The PLC includes 10 digital inputs, 2 analogue inputs and 8 transistor outputs, giving a total of 20 integrated I/O points.
What is the difference between the T20 and R20 versions?
The T20 model uses transistor outputs suitable for high-speed switching and PWM applications, while the R20 version uses relay outputs for switching higher loads.
Does the PLC include an HMI display?
No physical display is included. Instead, the UniStream controller uses a virtual HMI that can be accessed via remote displays, PCs or mobile devices.
What power supply does the controller require?
The controller operates from a 24 V DC power supply with a permissible range of approximately 20.4 V to 28.8 V DC.
Can the PLC connect to industrial networks?
Yes. The USC-B3-T20 supports Ethernet communication and protocols such as Modbus TCP, EtherNet/IP and CANopen for integration with industrial networks.
Trusted by Automation Engineers
UniStream PLCs are widely used by machine builders and system integrators thanks to their integrated I/O, powerful networking features 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 |
| PWM Outputs | 2 x 3kHz |
| Transistor Isolated Output | 8 Source (pnp) |
| Software Included | Unicloud can be added |
| Manufacturer | Unitronics |
| Manufacturer Part Number | USC-B3-T20 |
| Module type | PLC Only |
| Alternative Product SKU | USCB3T20 |
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