GE IS420ESWBH3A
GE IS420ESWBH3A
GE IS420ESWBH3A
GE IS420ESWBH3A
GE IS420ESWBH3A
GE IS420ESWBH3A
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IS420ESWBH3A

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IS420ESWBH3A is a 16-port unmanaged industrial Ethernet switch for GE Mark VIe control systems, featuring 10/100 copper ports with auto-negotiation and redundant power inputs.
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Technical specifications for IS420ESWBH3A

  • Manufacturer:
    General Electric
  • Part Number:
    IS420ESWBH3A
  • Product Family:
    GE Mark VI Gas Turbine Control
  • Product Type:
    Ethernet Switch
  • Stock:
    1
  • Port Count:
    16-port
  • Copper Port Speed:
    10/100Base-T with auto-negotiation
  • Fiber Port:
    100 Mbps FX uplink (configuration dependent: H1A-H5A)
  • Buffer Size:
    256 KB minimum
  • MAC Address Table:
    4K entries
  • Mounting:
    DIN-rail (clips ordered separately)
  • Weight:
    0.66 kg
  • Estimated shipping dimensions:
    20x18.8x5.7cm
  • Tariff Code:
    8517621900
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Operating Environment Monitoring and Control

Features:

  • IS420ESWBH3A provides 16 unmanaged 10/100 Ethernet ports with auto-negotiation and redundant power inputs.
  • HP-MDIX auto-sensing eliminates crossover cables; 100 Mbps FX uplink supports fiber connectivity options.
  • DIN-rail mountable with 256KB buffer, 4K MAC table, and IEEE 802.3/802.3u/802.3x compliance.
The IS420ESWBH3A delivers 16 high-speed 10/100Base-T copper ports specifically engineered for industrial control networks. Each port supports auto-negotiation, automatically detecting and configuring the optimal speed (10 or 100 Mbps) and duplex mode (half or full) based on the connected device. This plug-and-play capability simplifies installation and reduces configuration errors. The unmanaged design means the switch operates without user configuration—no IP addresses, VLANs, or spanning tree settings are required—making it ideal for deterministic real-time control networks like GE's IONet.

The IS420ESWBH3A incorporates redundant power supply inputs using diode-OR'd circuitry, a critical feature for high-availability control systems. Two separate power sources can be connected to the switch; if the primary supply fails, the secondary supply automatically takes over without any interruption to switch operation. This redundancy eliminates the power supply as a single point of failure, ensuring continuous network communication even during power source maintenance or failure events. The HP-MDIX (Automatic MDI/MDI-X) feature on all copper ports eliminates the need for crossover cables. The switch automatically detects whether a connected device uses straight-through or crossover wiring and adjusts its internal signal routing accordingly.

The IS420ESWBH3A is designed for easy integration into standard industrial control cabinets using DIN-rail mounting. GE provides three qualified mounting clip options: 259B2451BVP1 for ESWB switches mounted with the long edge parallel to the rail, and 259B2451BVP4 for perpendicular orientation. Mounting screws are included with each switch, simplifying installation. The switch is available in multiple hardware versions (H1A through H5A) that differ in fiber optic port configuration. Options include no fiber ports (all copper), multi-mode fiber ports for distances up to 2 km, or single-mode fiber ports for longer distances up to 15 km or more.

The IS420ESWBH3A GE Ethernet Switch may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

GE IS420ESWBH3A Ethernet Switch Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
GE IS420ESWBH3A Ethernet Switch Specs

General

  • Manufacturer GE
  • Model IS420ESWBH3A
  • Condition New Original ready stock
  • Product Family IS420PUAAH1A,IS420CCGAH2A,IS420PPNGH1A
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Power Generation (Turbine Control): Broadly used in GE distributed gas turbine and steam turbine control architectures. It handles high-priority operational inputs, configurations, and redundancy information.
  • Safety Instrumented Systems (SIS): Certified for use in the Mark VIeS Functional Safety System. It establishes a secure network topology for emergency shutdowns and fire/gas isolation loops.
  • Heavy Process Automation: Installed in petrochemical plants, oil and gas pipelines, and large scale manufacturing units requiring sub-millisecond control loop response times.
  • Network Redundancy Structures: Serves as the core hub for Simplex, Duplex, or Triple Modular Redundancy (TMR) architectures, preventing localized networking failures from tripping a plant.
  • Ambient Temperature: Operational from -40°C to 70°C (-40°F to 158°F). (Storage/shipping limits extend from -40°C to 85°C).
  • Humidity Limits: Operates within 5% to 95% relative humidity, non-condensing.
  • Chemical/Corrosion Resistance: Features a protective conformal coating compliant with IEC 60721-3-3 Class 3C2 and is G3 compliant, allowing deployment near harsh atmospheric pollutants like sulfur or chlorine.
  • Hazardous Locations: Certified for use in hazardous areas including Class 1, Div 2 / Class 2, Zone 2 / ATEX environments.
  • Port Configuration: Features 16 10/100Base-TX copper RJ-45 ports (no fiber options).
  • On-Module Loop Diagnostics (Open/Short & Out-of-Range): The General Electric IS420PUAAH1A continuously checks thermocouples for open circuit, RTDs for open/short, and 4-20mA loops for high (>21.5mA) or low (<3.6mA) faults, immediately flagging sensor failures to ToolboxST.
  • Performance: Utilizes a 256 KB buffer with a 4K MAC address table for managing data traffic, including multicast and broadcast packets, ensuring reliable, low-collision communication.
  • Functionality: Complies with IEEE 802.3/u/x standards, featuring HP-MDIX auto-sensing for automatic cable detection and configuration.
Description
The IS420ESWBH3A is part of GE's ESWB series of industrial unmanaged Ethernet switches, specifically designed for IONet networks in Mark VIe and Mark VIeS Safety control systems. This 16-port switch provides reliable real-time communication for turbine control applications, supporting 10/100Base-T copper ports with auto-negotiation and HP-MDIX auto-sensing. 

The IS420ESWBH3A features redundant power supply inputs with diode-OR'd circuitry, ensuring continuous operation even if one power source fails. Each port includes status LEDs indicating link presence, activity, duplex mode, and speed using dual-color indicators. The IS420ESWBH3A complies with IEEE 802.3, 802.3u, and 802.3x standards, guaranteeing interoperability with standard Ethernet equipment. 

For fiber optic connectivity, the IS420ESWBH3A is available in multiple hardware versions (H1A through H5A) offering different fiber port configurations, including no fiber ports, multi-mode fiber ports, or single-mode fiber ports for longer distance communication. The IS420ESWBH3A uses a 100 Mbps FX uplink port for fiber connections, allowing extended network distances beyond copper limitations. 

The IS420ESWBH3A supports DIN-rail mounting using GE-qualified clips (part number 259B2451BVP1 or 259B2451BVP4), with mounting screws included. The IS420ESWBH3A is required for all IONet switches used in Mark VIe and Mark VIeS systems, ensuring compatibility with GE's real-time industrial control solutions. 
Revisions

Revision Part #

Also known as

IS420ESWBH3AE
IS420ESWBH3A-E, Series -E, Rev -E
IS420ESWBH3AB
IS420ESWBH3A-B, Series -B, Rev -B
IS420ESWBH3AC
IS420ESWBH3A-C, Series -C, Rev -C
Alternative Names
IS42OESWBH3A IS420ESWAH1A IS420UCECH1B IS420YAICS1B IS420YDOAS1B IS420PPNGH1A IS420CCGAH2A IS420PUAAH1A
Technical notes
The IS420ESWBH3A is a 16-port unmanaged Ethernet switch for GE Mark VIe IONet networks. Features 10/100Base-T ports with auto-negotiation, redundant power inputs (Diode-OR'd), 256KB buffer, and 4K MAC table. Supports DIN-rail mounting. Available with multi-mode or single-mode fiber options (H1A-H5A). Requires GE-qualified mounting clips. Compliant with IEEE 802.3/802.3u/802.3x.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What control system uses IS420ESWBH3A?
IS420ESWBH3A is designed for GE Mark VIe and Mark VIeS Safety control systems, serving as a required IONet switch for real-time industrial control applications.
How many ports does IS420ESWBH3A have?
IS420ESWBH3A is a 16-port switch with 10/100Base-T copper ports, auto-negotiation, and HP-MDIX auto-sensing to eliminate crossover cables.
Does IS420ESWBH3A support redundant power?
Yes, IS420ESWBH3A features redundant power supply inputs with diode-OR'd circuitry, ensuring continuous operation if one power source fails.
Can IS420ESWBH3A be DIN-rail mounted?
Yes, IS420ESWBH3A supports DIN-rail mounting using clips 259B2451BVP1 (parallel) or 259B2451BVP4 (perpendicular). Mounting screws included.