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IEC 61850-3 modular managed rackmount switch – 24× Gigabit copper with PoE+ – 4× Gigabit SFP uplinks – dual 24/48 VDC inputs – IEEE 802.3bt PoE – 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-PoE-4GS-2LV-T is a fully modular, managed Gigabit Ethernet switch designed for industrial applications that demand reliable, high-capacity networking with integrated Power-over-Ethernet (PoE) capabilities. It offers 24 Gigabit copper ports with IEEE 802.3af/at/bt PoE, supporting up to 90 W per port, along with 4 SFP uplink ports for flexible fibre backbone connections.
This model features dual 24/48 VDC isolated inputs, providing redundant power to ensure uninterrupted PoE and data services in critical environments. Certified to IEC 61850-3 and IEEE 1613 standards, it delivers high electromagnetic immunity and resilience, making it ideal for substation automation, transport systems, and factory automation. Its hardened IP30 rackmount chassis is built for operation in extreme temperatures from -40 to 75°C.
To maximise network uptime, the switch incorporates Moxa’s Turbo Ring and Turbo Chain redundancy, ensuring recovery in under 20 ms for up to 250 connected devices. It also supports STP, RSTP, and MSTP for compatibility with industry-standard redundancy protocols. Security is prioritised with IEC 62443-4-2 compliance, secure boot, ACLs, MAC authentication bypass, port lock, and centralised authentication via RADIUS/TACACS+.
Comprehensive PoE management allows scheduling, monitoring, and diagnostics, ensuring stable and efficient power delivery for high-demand devices. Network performance is enhanced with VLAN segmentation, QoS for deterministic traffic, IGMP snooping for multicast optimisation, and hardware-based IEEE 1588v2 PTP for precision time synchronisation.
With expansion options through RM-G4000 modules, the RKS-G4028-PoE-4GS-2LV-T provides scalable, high-availability networking for mission-critical industrial deployments.
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 – PoE – 4x Gigabit SFP Ports – Redundant 2x 18V to 72V DC Input
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RKS-G4028-POE-4GS-2LV-T
28 Port Gigabit Modular Managed Ethernet Switch – PoE – 4x Gigabit SFP Ports – Redundant 2x 18V to 72V DC Input
Our customer is a tier one system integrator in the substation automation market with many of the worlds TSOs and DSOs listed as their clients. They required a number of custom designed rack-mount LCDsfor use in their HV substation projects.