28G-port full Gigabit modular managed Ethernet switches

 ● Developed according to the industrial cybersecurity standards

 ● Modular interfaces for flexible connector type combinations

 ● Support for IEEE 802.3bt PoE for up to 90 W output per port

 ● High EMC immunity compliant with IEC 61850-3 and IEEE 1613

 ● Hardware-based IEEE 1588 PTP for high-precision time synchronization

 ● Turbo Ring and Turbo Chain and STP/RSTP/MSTP for network redundancy

 ● Supports MXstudio for easy, visualized industrial network management


  • Ethernet Port

SKU: RKS-G4028-4GS-2LV-T Category:
Switch Type Layer 2 Managed
PoE Switches
Ethernet Interface 4 100/1000
BaseSFP Slots
Fiber Port
PoE Ports Combo Ports Input Voltage 24/48 VDC
(redundant dual inputs)
Operating Voltage 18 to 72 VDC Mounting Rack mounting Dimensions 440 x 44 x 300 mm
(17.32 x 1.37 x 11.81 in)
Weight 5200 g (11.46 lb) Housing Operating Temperature -40 to 75°C (-40 to 167°F)
Warranty Period 5 years        

The RKS-G4028 Series is designed to meet the rigorous demands of mission-critical applications for industry and business, such as power substation automation systems (IEC 61850-3, IEEE 1613), railway applications (EN 50121-4), and factory automation systems. The RKS-G4028 Series’ Gigabit and Fast Ethernet backbone, redundant ring, and 24 VDC, 48 VDC, or 110/220 VDC/VAC dual isolated redundant power supplies increase the reliability of your communications and save on wiring costs

The modular design of the RKS-G4028 Series also makes network planning easy, and allows greater flexibility by letting you install up to 28 Gigabit ports with various connector types

● Meets a wide range of demands from Fast Ethernet to full Gigabit industrial networks (up to 28 Gigabit ports)

● Developed according to the IEC 62443-4-1 and compliant with the IEC 62443-4-2 industrial cybersecurity standards

● -40 to 75°C operating temperature range

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20+ Years of Industrial Experience
Lubi Electronics