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General Electric IS400JPDHG1A High-density power distribution board
The IS400JPDHG1A is a high-density power distribution board (JPDH) in the GE Mark VIe series. It provides redundant 28VDC power distribution for the Mark VIe TMR architecture, adapting to centralized power supply for turbine and critical process control I/O modules and network devices. It features hot-swappable and fault isolation capabilities.
Core Performance:
Power Supply and Distribution Capabilities
Input: 22.5-28.6VDC (three redundant power supplies for R/S/T), supporting cascading expansion to meet the power supply requirements of the TMR architecture.
Output: 24 I/O module power supplies (8 each for R/S/T), each with a self-resetting PTC fuse protection; 3 Ethernet switch power supplies (1 each for R/S/T), adapting to Mark VIe I/O and IONet switches.
Expansion: Supports daisy-chain cascading, expandable to more than 24 I/O module power supplies to meet large-scale I/O expansion needs.
Protection: PTC overcurrent protection, input reverse connection/overvoltage protection, fault isolation and non-propagation, suitable for Class 1 Div 2 hazardous areas.
Electrical and Physical Characteristics
Communication: Compatible with Mark VIe IONet/Modbus TCP, supports seamless switching between TMR redundant power supplies and communication links.
Environment: Operating temperature -30℃ to 65℃, vibration/shock resistant, suitable for harsh industrial environments, hot-swappable design, maintenance without interrupting system operation.
Size and Installation: Standard Mark VIe rack mounting, compatible with Mark VIe I/O cabinets, supports redundant configuration, improving power supply reliability.
Email: xmxblynn@163.com
Phone: +86 18059884797
Key Technical Parameters
Parameter Value
Model IS400JPDHG1A (Mark VIe High-Density Power Distribution Board JPDH)
Compatible System GE Mark VIe TMR Control System
Input Power 22.5-28.6VDC (Redistributed R/S/T three-way)
I/O Power Output 24-way 28VDC (8 each for R/S/T), PTC overcurrent protection
Switch Power Output 3-way 28VDC (1 each for R/S/T), compatible with IONet switches
Expansion Capability Daisy-chain cascading, supports power supply for more than 24 I/O modules
Protection Functions PTC overcurrent, input reverse connection/overvoltage protection, fault isolation
Operating Temperature -30℃ to 65℃
Installation Method Standard Mark VIe rack, hot-swappable
Status Mark VIe system in-service spare part, used for power distribution board replacement
Typical Application Turbine control power distribution: compatible with gas/ The Mark VIe system for steam turbines provides redundant 28VDC power to I/O modules and Ethernet switches, ensuring stable turbine control I/O and communication links.
Process control I/O power supply: Used in DCS/ESD systems in petrochemical, power, and other industries, providing centralized power to Mark VIe I/O modules and meeting SIL 2/3 safety control requirements.
Large-scale I/O expansion: Daisy-chain cascading expands I/O power supply capacity to meet the I/O expansion needs of large turbines and process units.
Spare parts replacement and upgrade: Adapted to existing Mark VIe systems, used for replacing faulty power distribution boards, ensuring power system continuity.
Email: xmxblynn@163.com
Phone: +86 18059884797
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