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The GE IS420ESWBH3A is an industrial, unmanaged Ethernet 10/100 switch developed for real-time control solutions within the Mark VIe and Mark VIeS Safety control systems. Operating primarily as an IONet switch, this device facilitates deterministic, high-speed communication infrastructure required by critical turbine control and industrial automation networks. To achieve maximum signal integrity and uptime, the module incorporates redundant power supply inputs utilizing a Diode-OR'd internal architecture. Housed in a compact, rugged form factor designed for heavy industrial environments, it delivers localized high-density copper ports without the complexity of unneeded fiber optics, ensuring continuous system compatibility across the entire Mark VIe ecosystem.
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Product Line | Mark VIe Industrial Ethernet / IONet Switches |
| Model Variant | IS420ESWBH3A (ESWB Form, H3 Version) |
| Life-cycle Status | Active |
| Copper Ports | 16 Ports, 10/100Base-TX, RJ-45 |
| Fiber Ports | No fiber ports |
| Power Requirements | 24 / 28 V dc, 1 A max |
| Power Redundancy | Dual independent inputs (TB1 and TB2), Diode-OR'd |
| Power Supply Connector | Phoenix Contact (MC 1.5/5-STF-3.81) (Qty 2 included) |
| Supported Copper Cables | Cat 5e UTP cable with RJ-45 connectors (8P8C) |
| Cooling Method | Convection cooled |
| Safety Rating | Non-interfering |
| Conformal Coating | G3 Compliant |
| Hazardous Locations Approvals | Class 1, Div 2 / Class 2, Zone 2 / ATEX |
| Ambient Operational Temperature | -40 to 70 degC (-40 to 158 Fahrenheit) |
| Storage Temperature | -40 to 85 degC (-40 to 185 Fahrenheit) |
| Physical Dimensions (H x W x D) | 18.8 x 8.6 x 5.6 cm (7.40 x 3.40 x 2.20 in) |
| Mounting Options | DIN-rail mounted using separately purchased mounting clip |
| Country of Origin | USA |
| Connector Pin / Terminal | Function / Circuit Assignment |
|---|---|
| Ports 1 to 16 (RJ-45) | 10/100Base-TX Ethernet infrastructure channels for real-time control link distribution |
| TB1 Header | Primary DC power supply interface input (24/28 V dc) |
| TB2 Header | Secondary DC power supply interface input for Diode-OR'd hot redundancy |
CRITICAL WARNING:
Disconnect all electrical power sources from the enclosure prior to mounting, wiring, or servicing this equipment. Failure to isolate power can result in transient voltage spikes, equipment degradation, or severe personal injury. Ensure all redundant power inputs (TB1 and TB2) are entirely de-energized and confirm that any residual capacitive charge has safely bled off before manipulating terminal blocks.
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Returns & Warranty



The GE IS420ESWBH3A is an industrial, unmanaged Ethernet 10/100 switch developed for real-time control solutions within the Mark VIe and Mark VIeS Safety control systems. Operating primarily as an IONet switch, this device facilitates deterministic, high-speed communication infrastructure required by critical turbine control and industrial automation networks. To achieve maximum signal integrity and uptime, the module incorporates redundant power supply inputs utilizing a Diode-OR'd internal architecture. Housed in a compact, rugged form factor designed for heavy industrial environments, it delivers localized high-density copper ports without the complexity of unneeded fiber optics, ensuring continuous system compatibility across the entire Mark VIe ecosystem.
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Product Line | Mark VIe Industrial Ethernet / IONet Switches |
| Model Variant | IS420ESWBH3A (ESWB Form, H3 Version) |
| Life-cycle Status | Active |
| Copper Ports | 16 Ports, 10/100Base-TX, RJ-45 |
| Fiber Ports | No fiber ports |
| Power Requirements | 24 / 28 V dc, 1 A max |
| Power Redundancy | Dual independent inputs (TB1 and TB2), Diode-OR'd |
| Power Supply Connector | Phoenix Contact (MC 1.5/5-STF-3.81) (Qty 2 included) |
| Supported Copper Cables | Cat 5e UTP cable with RJ-45 connectors (8P8C) |
| Cooling Method | Convection cooled |
| Safety Rating | Non-interfering |
| Conformal Coating | G3 Compliant |
| Hazardous Locations Approvals | Class 1, Div 2 / Class 2, Zone 2 / ATEX |
| Ambient Operational Temperature | -40 to 70 degC (-40 to 158 Fahrenheit) |
| Storage Temperature | -40 to 85 degC (-40 to 185 Fahrenheit) |
| Physical Dimensions (H x W x D) | 18.8 x 8.6 x 5.6 cm (7.40 x 3.40 x 2.20 in) |
| Mounting Options | DIN-rail mounted using separately purchased mounting clip |
| Country of Origin | USA |
| Connector Pin / Terminal | Function / Circuit Assignment |
|---|---|
| Ports 1 to 16 (RJ-45) | 10/100Base-TX Ethernet infrastructure channels for real-time control link distribution |
| TB1 Header | Primary DC power supply interface input (24/28 V dc) |
| TB2 Header | Secondary DC power supply interface input for Diode-OR'd hot redundancy |
CRITICAL WARNING:
Disconnect all electrical power sources from the enclosure prior to mounting, wiring, or servicing this equipment. Failure to isolate power can result in transient voltage spikes, equipment degradation, or severe personal injury. Ensure all redundant power inputs (TB1 and TB2) are entirely de-energized and confirm that any residual capacitive charge has safely bled off before manipulating terminal blocks.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Black
|
| Country of origin |
United States
|
| Ethernet lan interface type |
Fast
|
| Network protocols supported |
Ethernet (IEEE 802.3)
|
| Power source |
DC Power
|