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      IS400JPDHG1A

      Power Distribution Board
      In Stock
      Ships by Friday, November 6
      Fast Shipping Available
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Fused DC Power Distribution
      Board for Mark VIe Systems
      used for Controllers
      and I/O Modules

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      Technical specifications for IS400JPDHG1A

      • Manufacturer:
        General Electric
      • Product Category:
        DCS Systems
      • Spare Part Number:
        IS400JPDHG1A
      • Estimated shipping dimensions:
        16.5x15x11.5cm
      • Weight:
        0.64 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Input Voltage:
        28 V dc
      • Output Voltage:
        600 V,13 A
      • Mounting:
        DIN-Rail
      • Operating temperature:
        -30 to 65°C
      • I/O Pack Capacity:
        Powers up to 24 Mark VIe I/O packs
      • Ethernet Switch Outputs:
        3 Unprotected 28 VDC Outputs Dedicated for Ethernet Switches
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      Information

      Overview Manuals Common Applications Product Precautions
      The IS400JPDHG1A functions as a specialized High-Density Power Distribution Board (JPDH) within distributed control networks. Powered by triple-redundant R/S/T 28 Vdc inputs, the board distributes localized power to 24 Mark VIe I/O packs and 3 network Ethernet switches. Circuit integrity for each I/O pack is tightly managed via integrated PTC (positive temperature coefficient) fuses, minimizing localized fault propagation. Unprotected outputs are earmarked specifically for the R, S, and T Ethernet switches, while the board's native daisy-chain architecture allows seamless cascading to support high-density, multi-pack expansions.
        • TMR-Aligned Power Rails
        • Solid-State Self-Healing Protection
        • Seamless Daisy-Chain Scalability
      IS400JPDHG1A is a high-density power distribution board featuring fault-safe protection and reinforced heavy-industrial engineering. Its 24 I/O pack output pins are each integrated in series with a highly sensitive positive temperature coefficient (PTC) resettable fuse; if a transient short circuit or overload occurs on a field channel, the PTC resistance increases stepwise to cut off the fault current, and automatically closes to restore conductivity once the fault is cleared and the temperature drops, reducing the system Mean Time to Repair (MTTR). Concurrently, the 3 output channels dedicated to network switches utilize an unprotected circuit to ensure that the plant-level central CPU maintains full-time data monitoring of the network links even under extreme electrical disturbances. The hardware has a compact structure that supports DIN-rail or panel embedded mounting, operates within a wide temperature range of -30°C to +65°C, and features circuit traces that meet heavy-industrial standards for moisture resistance, oxidation resistance, and short-circuit prevention, securing the operational safety of the entire automation cabinet hardware.

      Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. 
       General Electric IS400JPDHG1A Power Distribution Board 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.
      Gas Turbine Power Generation
      Deployed in large gas turbine control cabinets to provide redundant power to I/O modules monitoring turbine speed, exhaust temperature profiles, and fuel control valves.

      Steam Turbine Power Generation
      Used in thermal power plant steam turbine control systems to guarantee uninterrupted data acquisition for valve control, bearing vibration monitoring, and high-pressure bypass systems.

      Nuclear Power Control Systems
      Applied in the Balance of Plant (BOP) control systems of nuclear power facilities, distributing regulated power to monitoring hardware for circulating water pumps and moisture separator reheaters.

      Offshore Drilling Platforms
      Distributes main control power to the central DCS on offshore platforms, securing production safety controls and fire/gas system interlocks in high-salinity and high-vibration environments.

      Metallurgy & Iron and Steel Industry
      Measures cooling water flow rates and blast furnace infrared temperatures in harsh steelmaking environments to prevent burn-through accidents caused by furnace wall overheating.

      Iron & Steel Blast Furnace Control
      Used in blast furnace blower units and Top Gas Recovery Turbine (TRT) automation systems, providing overload-protected power to high-frequency machinery monitoring hardware.
       When utilizing the IS400JPDHG1A, it is critical to ensure strict independence and voltage consistency across the triple R/S/T 28 Vdc input sources to maintain TMR balance. Although its I/O channels feature self-resetting PTC fuses, their thermal recovery status should be verified after frequent overloads. Notably, because the Ethernet switch outputs are unprotected, external network short circuits can impact upstream power, demanding robust external prevention. Additionally, in high-salinity or high-vibration environments, regular tightening of screw terminals and inspections of the protective coating are mandatory.

      Alternative Names

      IS4PO0JPDHG1A IS40OJPDHG1A IS400JPDHGIA IS4OOJPDHGIA

      Technical notes

      The GE IS400JPDHG1A is a triple-modular redundant (TMR) High-Density Power Distribution Board for Mark VIe DCS systems, responsible for distributing 28 Vdc power to I/O packs and Ethernet switches. It features intelligent, self-resetting PTC fuses for fault-isolation protection and supports daisy-chain cascading to seamlessly scale up power supply capacity.

      FAQ View All FAQ

      • What is the GE IS400JPDHG1A?
        The IS400JPDHG1A is a high-reliability Power Distribution Field Termination Assembly (FTA) board within General Electric's (GE) Mark VIe and Mark VIeS digital control systems. It is primarily responsible for DC power distribution, branch current limiting, and status feedback inside or across control enclosures.
      • Which industrial system category does the IS400JPDHG1A belong to?
        It belongs to the Gas Turbine Control / Steam Turbine Control category, more specifically serving as dedicated control power distribution hardware for Safety Instrumented Systems (SIS) and main controllers of large and medium-sized turbomachinery sets.
      • What is the primary purpose of the IS400JPDHG1A board?
        Its primary purpose is to safely distribute main input DC power to various core components of the Mark VIe system, such as processor racks, I/O modules, termination boards (TB), and field sensor loops, while providing overload protection.
      • How to correctly install and use products like the IS400JPDHG1A?
        The IS400JPDHG1A is typically mounted vertically or horizontally on the wing rack or DIN rails of a Mark VIe control cabinet using plastic carriers or metal brackets. To use it, main 24Vdc or 125Vdc feeder lines must be wired to high-current input terminals, with branch power then drawn via dedicated ribbon cables or terminal blocks.
      • What circuit protection mechanisms does the IS400JPDHG1A provide?
        The board features independent fuses or resettable PTC components for each output branch. When a field instrument short-circuits or a localized overload occurs, the protection device swiftly disconnects the compromised branch, ensuring other control modules remain unaffected by electrical shocks.
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