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Layer 2 Modular Managed Switch – IEC 61850-3 – up to 28x Gigabit Ethernet ports – hot-swappable interface/power modules – MMS server – IEEE 1588v2 PTP – Dual HV/WV power options – 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 PT-G7728 Series is a family of IEC 61850-3 Edition 2 Class 2 compliant, Layer 2, modular, managed switches, built to provide high reliability and flexibility in digital substations and mission-critical industrial automation networks. Designed with a hot-swappable interface and power modules, the series enables continuous operation even during hardware changes or upgrades, eliminating costly downtime.
Each switch includes four fixed Gigabit ports (2x copper, 2x SFP) and six interface module slots that can accommodate a wide range of LM-7000H series Ethernet and PoE+ modules. Up to 28 Gigabit ports are supported in total, allowing operators to configure an optimised port mix for substation, utility, or industrial requirements. Two hot-swappable power slots provide redundancy with wide-range supply options, including 24/48 VDC or 110/220 VAC/VDC, ensuring resilient operation across diverse field conditions.
Redundancy and resiliency are built in, supporting Turbo Ring v1/v2, Turbo Chain, MSTP, RSTP, STP, and link aggregation. Time-sensitive applications benefit from hardware-based IEEE 1588v2 PTP, including power profiles IEC 61850-9-3 and IEEE C37.238, providing precise clock synchronisation across protection and control systems.
The PT-G7728 Series also integrates a built-in MMS server based on IEC 61850-90-4 switch data modelling, enabling seamless SCADA integration. Advanced Layer 2 management features include VLANs, quality of service, IGMP snooping/querier, ACLs, and SNMPv1/v2c/v3, offering fine-grained control and monitoring of traffic flows.
Certified to IEC 61850-3 and IEEE 1613, the PT-G7728 withstands EMI, surges, vibration, and temperature extremes from -40 to 75°C. Combined with its modular design and hot-swappable flexibility, the PT-G7728 provides a scalable, standards-based foundation for building resilient, high-bandwidth substation backbones and industrial automation networks.
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 IEC 61850-3 Rack-Mount Full Gigabit Modular Managed Ethernet Switch
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PT-G7728
28 Port IEC 61850-3 Rack-Mount Full Gigabit Modular Managed Ethernet Switch
A world leading company in critical two-way wireless communications systems used by public safety and government organisations required the design of an ultra-reliable industrial computer to monitor and control remote broadcast sites nationwide.