IS420ESWAH3A - ESWA IONet Switch, 8-Port 10/100 Copper | GE Mark VIe | B7B

IS420ESWAH3A is a General Electric ESWA IONet Switch, 8-Port 10/100 Copper for GE SPEEDTRONIC™ Mark VIe control systems. The ESWA function supports IONet Ethernet switching operation in turbine control and balance-of-plant applications that use the Mark VIe Terminal Board and I/O Hardware. It should be matched to the installed catalog number, hardware form, and cabinet configuration before it is used as a replacement.

GE documentation identifies the ESWA/ESWB switch family as GE's industrial unmanaged Ethernet 10/100 switch line, supporting 802.3, 802.3u, and 802.3x compatibility, 10/100 base copper with auto-negotiation, full/half duplex auto-negotiation, HP-MDIX auto sensing, and per-port LEDs for link, activity, duplex, and speed. This catalog form, IS420ESWAH3A, is documented as an 8-port 10/100BASE-TX switch with no fiber ports. The switch has an operating temperature rating of -30 to 65°C, provisions for redundant 18 to 36 V dc power sources (200/400 mA), and is DIN-rail mountable.

This component is typically considered when troubleshooting Mark VIe hardware, replacing a failed module, evaluating repair options, or maintaining spare inventory for turbine control systems. Before installation, verify the catalog number, hardware revision, and associated terminal board or I/O pack configuration against site documentation and OEM requirements. The OEM reference for this listing is GEH-6721 Vol I; GEH-6721 Vol II.

Control system parts are provided by GTC Control Solutions, Inc., a wholly owned subsidiary of B7B. Parts are offered in unused, repaired, or remanufactured condition, subject to availability. Each repaired or remanufactured component undergoes comprehensive functional testing in energized panels to guarantee reliability and performance. We provide detailed test reports and warranties with every repair, giving you confidence in the quality and longevity of your replacement parts.