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IEC 61850-3 modular managed rackmount switch – 24× Gigabit copper – 4× Gigabit SFP uplinks – dual 24/48 VDC inputs – 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-2LV-T is a modular, fully managed rack-mount switch engineered for industrial and utility networks that require maximum resilience and flexible deployment. It features 24 Gigabit copper ports and 4 Gigabit SFP uplinks for high-speed fibre connections. Dual 24/48 VDC redundant isolated inputs ensure reliable power, protecting critical systems from power disruptions and reducing downtime.
Certified to IEC 61850-3 and IEEE 1613, the switch provides high electromagnetic immunity, making it ideal for substations, smart grids, and heavy industrial environments with electrical interference. It is also EN 50121-4 compliant, making it suitable for railway environments.
The RKS-G4028-4GS-2LV-T supports Moxa’s Turbo Ring and Turbo Chain technologies, enabling network recovery in under 20 ms, even across large deployments. Standards-based redundancy is provided through STP, RSTP, and MSTP protocols. For security, it is compliant with IEC 62443-4-2 and offers features such as secure boot, encrypted management (SSH/HTTPS/SNMPv3), port locking, ACLs, and centralised authentication with RADIUS and TACACS+.
The switch’s modular architecture allows customisation with RM-G4000 expansion modules, providing flexibility for fibre, copper, or mixed media. IEEE 1588v2 Precision Time Protocol ensures accurate time synchronisation for power and automation systems, while VLANs,quality of service, and bandwidth management improve traffic control and determinism.
With IP30 protection, rugged rackmount housing, and an extended operating range of -40 to 75°C, the RKS-G4028-4GS-2LV-T is built for long-term reliability in extreme conditions. It is the ideal choice for secure, scalable, and resilient networking across utilities, transport, and industrial automation.
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 – Redundant 2x 18V to 72V DC Input
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RKS-G4028-4GS-2LV-T
28 Port Gigabit Modular Managed Ethernet Switch – 4x Gigabit SFP Ports – Redundant 2x 18V to 72V DC Input
Our customer required a modern, reliable long-lifetime panel PC solution for installation in an ROV control room. The main requirement of the project was to upgrade existing ROV control room hardware, while continuing to run a legacy piece of control software.