Description
Product Overview
GE IS420ESWBH3A is an ESWB industrial Ethernet switch module dedicated for GE Speedtronic Mark VIe and Mark VIeS turbine control systems. Serving as the core communication hub of IONet network, GE IS420ESWBH3A enables real‑time high‑speed data exchange among controllers, I/O modules and HMI units. Adopting fan‑less convection cooling and dual redundant DC power supply, this industrial‑grade unit is built for harsh power‑plant operating conditions. This part is obsolete by original manufacturer. Available stock includes new surplus units and refurbished pulled‑out spare parts for maintenance and replacement of legacy gas & steam turbine control systems.

Technical Specifications
表格
| Item | Specifications |
|---|---|
| Model | IS420ESWBH3A |
| Brand | GE (General Electric / GE Vernova) |
| Product Type | ESWB IONet Industrial Ethernet Switch Module |
| Compatible System | Mark VIe, Mark VIeS, EX2100e Turbine Control System |
| Ports | 16 × 10/100Base‑TX RJ45 copper ports, no fiber port |
| Switch Type | Layer 2 Unmanaged Switch |
| Power Supply | Dual redundant 24‑28VDC input |
| Cooling | Fan‑less convection cooling |
| Operating Temperature | -40℃ ~ +70℃ |
| Storage Temperature | -40℃ ~ +85℃ |
| Humidity | 5‑95%RH, non‑condensing |
| Mounting | DIN‑rail mounting / panel mounting (mounting clip optional) |
| Compliance | IEEE802.3, IEEE802.3u, IEEE802.3x |
| LED Indicators | Link, activity, duplex status indicator |
| Product Status | OEM Obsolete, new surplus stock & refurbished spare parts available |
| Application | Network maintenance for gas turbine, steam turbine & combined‑cycle power plant Mark VIe system |
Key Features
- Original GE IS420ESWBH3A IONet switch, specially engineered for Mark VIe turbine control system, ensures deterministic real‑time control network communication.
- 16‑port RJ45 ethernet interface with dual redundant power input for enhanced power‑supply reliability.
- Fan‑less design reduces failure points for long‑term non‑stop operation in power‑plant site.
- Supports DIN‑rail and panel mounting for flexible cabinet layout deployment.
- Essential network spare part for legacy Mark VIe platform, used for faulty network unit replacement on turbine control systems.
Application
Gas‑fired power plant, steam turbine power station, combined‑cycle power facility with GE Mark VIe / Mark VIeS turbine control system.










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