Product Description

The GE IS400JPDHG1A is a high-density power distribution board developed for the Mark VIe control system. It provides regulated 28 VDC power to multiple I/O packs and Ethernet switches, supporting stable operation across complex turbine and automation platforms. Engineers appreciate this board because it delivers clean, monitored power while maintaining a compact footprint. Moreover, its design supports scalable architectures by allowing multiple JPDH boards to be linked in a daisy-chain arrangement.

The board is frequently deployed in gas and steam turbines, as well as utility-scale power plants, where reliable power distribution is essential. In addition, its rugged construction and ATEX Zone 2 certification make it suitable for harsh or hazardous environments. Many operators integrate the IS400JPDHG1A within redundant or TMR configurations to ensure uninterrupted performance during critical operations.

Technical Specifications

Model: IS400JPDHG1A
Type: High-Density Power Distribution Board
Platform: GE Mark VIe Control System

Electrical Parameters

• Input Voltage: 28 VDC nominal

• Output Distribution: Power for 24 I/O packs and 3 Ethernet switches

• Protection: Fuse protection, surge suppression, monitoring circuits

System Architecture

• Redundancy Support: Simplex, Redundant, TMR

• Expansion: Daisy-chain connection to additional JPDH boards

Environmental Conditions

• Operating Temperature: –20 °C to +65 °C

• Storage Temperature: –40 °C to +85 °C

• Certifications: UL, CE, CSA, ATEX Zone 2

Mechanical Details

• Dimensions: 13.8 × 8.6 × 5.6 cm

• Weight: 0.5 kg , 2.10 lbs packaged

Application Areas

• Gas turbines

• Steam turbines

• Power plants

• Distributed process automation

FAQ

Q1: How many devices can the IS400JPDHG1A power?
It can supply 28 VDC power to 24 Mark VIe I/O packs and up to three Ethernet switches.

Q2: Can multiple JPDH boards be connected together?
Yes, additional boards can be daisy-chained to support expanded control systems.

Q3: Does the module support TMR configurations?
It supports simplex, redundant, and full TMR system architectures.

Q4: Is the board certified for hazardous environments?
Yes, it carries ATEX Zone 2 certification for use in hazardous industrial areas.

Q5: What systems commonly use this module?
It is typically used in GE Mark VIe turbine control systems and large process automation platforms.