Computing
Displays
Networking
DAQ & Control
Solutions
About Us
IEC 61850-3 modular managed rackmount switch – 24× Gigabit copper – 4× Gigabit 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-G4028-4GT-LV-T is a modular, fully managed Ethernet switch engineered for mission-critical industrial and utility networks that demand resilience, security, and flexibility. Designed with a 24/48 VDC power input, the switch delivers 24 Gigabit copper ports and 4 dedicated Gigabit uplinks, ensuring reliable high-bandwidth connectivity for control and monitoring systems. Its compliance with IEC 61850-3 and IEEE 1613 guarantees robust electromagnetic compatibility, making it ideal for substation automation, power distribution, and other environments with strong electrical interference.
This switch incorporates Moxa’s Turbo Ring and Turbo Chain technologies, providing network recovery times of less than 20 ms across 250 switches. For added interoperability, it supports STP, RSTP, and MSTP protocols. Cybersecurity is enhanced with IEC 62443-4-2 compliance, secure boot, encrypted management (SSH/HTTPS/SNMPv3), access control lists, and centralised authentication via RADIUS and TACACS+.
With a modular architecture, users can tailor the RKS-G4028 to specific applications using compatible RM-G4000 series expansion modules for copper, fibre, or mixed interfaces. Advanced features such as IEEE 1588v2 Precision Time Protocol (PTP), QoS, VLAN management, and bandwidth control support time-sensitive power and automation applications.
The rugged rack-mount design, IP30-rated housing, and wide operating range of -40 to 75°C ensure reliable service in harsh conditions. Key deployment areas include smart grids, substations, transportation systems, and factory automation. Offering redundancy, security, and scalability in one platform, the RKS-G4028-4GT-LV-T provides the backbone required 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 RJ45 Ports – 18V to 72V DC Input
Please complete the details below to receive your quote
Select the quantity you wish to request pricing or lead time information for:
RKS-G4028-4GT-LV-T
28 Port Gigabit Modular Managed Ethernet Switch – 4x Gigabit RJ45 Ports – 18V to 72V DC Input
The requirement of the project was to provide an interoperability between tactical radios in a military environment previously not achievable due to limitations of hardware and budget constraints.