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IEC 61850-3 modular managed rackmount switch – 24× Gigabit copper – 4× Gigabit SFP uplinks – 24/48 VDC input – IEC 62443 cybersecurity – Extended wide -40 to 75°C operation
Moxa Products Supplied To the UK, From the UK
As an official UK distributor of Moxa products since 2014, we at Impulse are proud to be affiliated with Moxa Technical College. Our partnership enables us to provide comprehensive in-house training and first-line technical support, and our team of Industrial Internet of Things (IIoT) specialists are fully equipped to guide you through every step of the process. Whether you require assistance with installation, troubleshooting or anything else, our team is ready to assist you.
Technical Support from Impulse
Our commitment doesn't end with the initial setup—we provide lifelong technical support for the entire range of Moxa products at no extra charge. Count on us to ensure that your network operates at its peak performance throughout its entire lifespan.
The RKS-G4028-4GS-LV-T is a modular rackmount Ethernet switch designed for demanding industrial networks, combining resilience, modularity, and advanced cybersecurity. It provides 24 Gigabit copper ports and four dedicated Gigabit SFP uplinks for high-speed fibre connectivity, supported by a 24/48 VDC power input for reliable operation in mission-critical applications.
Built to IEC 61850-3 and IEEE 1613 standards, the switch offers exceptional EMC immunity, making it suitable for deployment in substations, railway signalling, and energy systems exposed to electrical noise. Its compliance with EN 50121-4 also ensures suitability for rail trackside and control room applications.
The RKS-G4028-4GS-LV-T features Moxa’s Turbo Ring and Turbo Chain redundancy technologies, delivering recovery in less than 20 ms for networks of up to 250 switches. It also supports STP, RSTP, and MSTP for standards-based redundancy. IEC 62443-4-2 cybersecurity compliance ensures robust protection, with features including secure boot, SSH/HTTPS/SNMPv3, ACLs, and centralised management through RADIUS and TACACS+.
The modular design supports RM-G4000 expansion modules, allowing flexible combinations of copper, fibre, or mixed media interfaces. Time-sensitive applications benefit from IEEE 1588v2 Precision Time Protocol (PTP), VLAN segmentation, QoS traffic prioritisation, and bandwidth control.
With IP30-rated metal housing, rugged rackmount construction, and an extended -40 to 75°C operating temperature, the RKS-G4028-4GS-LV-T guarantees reliable operation in harsh conditions. Designed for critical applications such as power automation, transport, and factory control, this switch provides the scalability, speed, and security needed for next-generation industrial networking.
Delivery & Returns
We offer a range of delivery options to suit your needs.
UK Mainland
Northern Ireland & Highlands
Ireland
RMA
In order to process returned goods, Impulse Embedded Limited uses an internal RMA system. Before returning goods for any reason, please contact Impulse Embedded Limited (returns@impulse-embedded.co.uk) to request an RMA number. Please confirm the reason for the return of the goods, providing the Serial Number, Product Code, and Impulse Embedded Limited Invoice Number (if known).
When returning goods, please ensure they are suitably packed so as to avoid damage, are in the original packaging, along with all accessories, with the outer packaging marked with the RMA number. It is recommended that you use a signed delivery service, as goods lost in transit are not the responsibility of Impulse Embedded Limited.
Please do not write the RMA number on the goods or on the original packaging. Impulse Embedded Limited may refuse returned goods and return them if they arrive without an RMA number, or not in the original packaging.
Moxa 28 Port Gigabit Modular Managed Ethernet Switch – 4x Gigabit SFP Ports – 18V to 72V DC Input
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RKS-G4028-4GS-LV-T
28 Port Gigabit Modular Managed Ethernet Switch – 4x Gigabit SFP Ports – 18V to 72V DC Input
Our customer was looking for ways to improve efficiency and reliability, and reduce operation costs and overheads for their manufacturing facility. The initial step in this transformation was to add additional monitoring and measurements to several areas of their facility to allow the collection of usage data from older machinery for analysis. The machinery to be analysed would be located in many areas of the complex, with some sitting in concrete outbuildings far from the source of the main network.