Why Choose the Unitronics UCR-ST-B5-SA Industrial 4G LTE Router?
The Unitronics UCR-ST-B5-SA is a compact industrial 4G LTE cellular router with Wi-Fi designed to provide secure remote connectivity for PLC systems, industrial equipment, SCADA networks and IIoT applications. As part of the proven Unitronics B5 router series, it enables reliable communication between automation devices, cloud platforms and remote maintenance systems using modern cellular networks.
Designed specifically for South America, Australia, New Zealand and Taiwan, the UCR-ST-B5-SA provides secure VPN access, industrial IoT connectivity and seamless integration with Unitronics UniCloud services. Engineers can remotely monitor equipment, access PLCs, collect operational data and perform diagnostics from virtually anywhere with internet access.
With integrated 4G LTE Cat 4 connectivity, dual Ethernet ports, Wi-Fi capability, SMS messaging functionality and industrial-grade reliability, the UCR-ST-B5-SA delivers a complete networking solution for modern automation systems. Its compact design and DIN rail compatibility make it ideal for installation inside control panels and industrial enclosures.
Key Advantages
Industrial 4G LTE cellular router with Wi-Fi.
Designed for South America, Australia, New Zealand and Taiwan.
Supports secure VPN remote access.
Dual Ethernet ports with configurable WAN/LAN functionality.
Integrated Wi-Fi access point and client modes.
Embedded SMS messaging capability.
Supports UniCloud remote monitoring.
Compact DIN rail mountable industrial design.
Key Features
Unitronics UCR-ST-B5-SA industrial router.
4G LTE Cat 4 cellular connectivity.
Download speeds up to 150 Mbps.
Upload speeds up to 50 Mbps.
2 × 10/100 Mbps Ethernet ports.
1 WAN port configurable as LAN.
Wi-Fi hotspot or client mode operation.
1 digital input and 1 digital output.
Embedded SMS send/receive functionality.
VPN, MQTT and Modbus communication support.
Firewall security features.
External SIM card slot.
DIN rail mounting compatible.
Wide operating temperature range.
Secure Remote Connectivity for Industrial Automation
The UCR-ST-B5-SA enables secure remote access to Unitronics Vision, Samba, Jazz and UniStream controllers through cellular networks. By connecting automation systems to UniCloud, engineers can monitor machine performance, receive alarms, analyse data and access remote diagnostics tools without requiring on-site visits.
Its combination of industrial-grade construction, VPN support, embedded SMS functionality and support for widely used LTE bands makes it suitable for installations in remote locations and critical infrastructure projects. The wide operating temperature range ensures dependable performance in demanding industrial environments.
Typical Applications
Remote PLC monitoring and diagnostics.
Industrial IoT and cloud connectivity.
SCADA telemetry systems.
Water and wastewater infrastructure.
Machine builders and OEM equipment.
Energy and utility monitoring.
Remote maintenance and service access.
Technical Specifications
Voltage
30 V
Series
UCR B5 Industrial Routers
Product type
Industrial cellular router
Cellular technology
4G LTE Cat 4
Fallback technologies
3G and GSM
LTE-FDD bands
B1, B2, B3, B4, B5, B7, B8, B28
LTE-TDD bands
B40
3G bands
B1, B2, B5, B8
2G bands
B2, B3, B5, B8
Download speed
Up to 150 Mbps
Upload speed
Up to 50 Mbps
Ethernet ports
2 × 10/100 Mbps
Wi-Fi
Access point and client mode
SIM slot
External SIM holder
Digital inputs
1
Digital outputs
1
Memory
64 MB RAM, 16 MB Flash
Supply voltage
9-30 V DC
Operating temperature
-40°C to +75°C
Mounting
DIN rail installation
Dimensions
83 × 74 × 25 mm
Weight
Approx. 125 g
Frequently Asked Questions
What is the Unitronics UCR-ST-B5-SA used for?
The UCR-ST-B5-SA is an industrial 4G LTE router designed to provide secure remote connectivity between PLC systems, automation equipment, cloud services and SCADA platforms.
Which regions does the SA model support?
The SA version is designed for use in South America, Australia, New Zealand and Taiwan, supporting LTE frequency bands commonly used throughout these regions.
Does the router support Wi-Fi?
Yes. The router can operate as either a Wi-Fi access point or connect as a client to an existing wireless network.
Can the router send SMS messages?
Yes. Embedded SMS functionality enables PLC systems and automation applications to send alerts, notifications and status updates through the cellular network.
How is the router installed?
The router is designed for DIN rail mounting inside industrial control panels and automation cabinets.
Trusted by Industrial Automation Engineers
Unitronics UCR cellular routers are widely used throughout industrial automation environments to provide secure remote access, cloud connectivity, IIoT functionality and reliable communications for PLC-based control systems.
Voltage
30 V
Series
UCR B5 Industrial Routers
Product type
Industrial cellular router
Cellular technology
4G LTE Cat 4
Fallback technologies
3G and GSM
LTE-FDD bands
B1, B2, B3, B4, B5, B7, B8, B28
LTE-TDD bands
B40
3G bands
B1, B2, B5, B8
2G bands
B2, B3, B5, B8
Download speed
Up to 150 Mbps
Upload speed
Up to 50 Mbps
Ethernet ports
2 × 10/100 Mbps
Wi-Fi
Access point and client mode
SIM slot
External SIM holder
Digital inputs
1
Digital outputs
1
Memory
64 MB RAM, 16 MB Flash
Supply voltage
9-30 V DC
Operating temperature
-40°C to +75°C
Mounting
DIN rail installation
Dimensions
83 × 74 × 25 mm
Weight
Approx. 125 g
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...