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TECHNICAL SPECIFICATIONS:
Part Number: IS210JPDDG2A
Manufacturer: General Electric
Series: Mark VIe
Functional Acronym: JPDD
Product Type: DC Power Distribution Board Assembly
Supported Nominal Inputs: 24 V DC, 48 V DC, or 125 V DC
Operating Temperature: -30 °C to +65 °C
Mounting Configuration: Vertical DIN-rail mount plastic holder
Output Circuits: 6 identical branch circuits
Circuit Protection Componentry: Branch fuses, independent dual-pole toggles
Repair / Evaluation Lead Time: 3-5 Business Days
Availability: In Stock
Country of Origin: United States
Manual Reference: GEH-6721
The IS210JPDDG2A is a DC Power Distribution Assembly Module (JPDD) designed and manufactured by General Electric as an integral element of the Speedtronic Mark VIe turbine control architecture. The JPDDG2A board provides DC power distribution, power isolation, and branch circuit protection for control or I/O functions requiring 125V DC or 24V DC power. Typical applications include DC relay and solenoid control power, and contact wetting. Each output includes a fuse, a switch, and a lamp to indicate the presence of output voltage. JPDD is not intended for power distribution to the I/O packs. JPDDG2A provides fuses that are coordinated with the rating of the system wiring and connectors. JPDAG2 and G3 are used when fuse ratings coordinated with a specific application are required. Two different fuse sizes are provided to accommodate local fuse preferences.
APPLICATION-SPECIFIC FUSE COORDINATION
While the base JPDDG2A board uses standard fuses matched strictly to default wiring frameworks, the G2A variant is tailored for custom industrial applications. The JPDDG2A accommodates specialized, application-specific fuse sizing to align exactly with localized electrical preferences and unique field load hazards. It isolates unexpected electrical overcurrent faults at the individual branch level to ensure that localized short circuits do not destabilize the main control system's power rails.
SEGMENTED LOOP TOPOLOGY & WETTING PATHS
The JPDDG2A features six identical, isolated branch output circuits. Each independent path is structurally integrated with dual-pole fuse protection and matching isolation switch contacts on both sides of the DC line. This symmetric configuration allows the board to operate smoothly with ungrounded, floating DC power sources, providing reliable ground-fault isolation.
A green status indicator lamp is placed immediately inline with each output path. It illuminates only when the circuit is live and upstream fuses are intact, giving technicians a clear visual indicator of local power distribution. Note: In accordance with Mark VIe architectural parameters, JPDD boards are engineered strictly for auxiliary control loop distribution and are not intended to feed core I/O pack processing electronics directly.
INPUT POWER INTERFACING & DAISY-CHAIN COUPLING
The board accepts a single nominal voltage level at any given time—operating on 24 V DC, 48 V DC, or 125 V DC power architectures. High-voltage lines (125 V DC) interface through heavy-duty 2-pin Mate-N-Lok connection ports. Lower-range lines (24/48 V DC) interface through 4-pin Mate-N-Lok ports, which route power through parallel pin pairs to double the current capacity.
Both connector styles include a dual-port configuration. One port receives the main feed from the cabinet's Main Power Distribution Module, while the adjacent matching port allows installers to daisy-chain the DC bus directly to neighboring JPDD boards without requiring external terminal strip splicing.
INSTALLATION:
JPDDG2A is held in a plastic holder, which mounts on a vertical DIN-rail. When installing the JPDD, it is important to provide a ground lead from TB1 to the system ground. This creates a ground path for the metal switch bodies. Power input can be either 24 V dc or 125 V dc, but not both together. For cable destinations, refer to the circuit diagram. TB1 should be connected to the system ground.
INPUTS:
Multiple JPDD boards can receive power from a single Main Power Distribution Module branch circuit. Power input can be either 125 V dc or 24 V dc nominal. Two 2-Pin Mate-N-Lok connectors are provided for 125 V dc power. One connector receives input power, and the other can be used to distribute 125 V DC power to another JPDD board in daisy chain fashion. Two 4-pin Mate-N-Lok connectors are provided for 24 V dc power. These perform functions similar to those of the 2-pin connectors above. The 4-pin connector permits parallel connection of two pin-pairs for increased current capacity. It is expected that neither side of the dc power input is grounded.
WHY PARTNER WITH WORLD OF CONTROLS
World of Controls specializes in supplying high-quality, warranty-backed OEM replacement parts, including unused surplus and professionally rebuilt components for critical turbine control and industrial automation systems like the General Electric Mark VIe platform. To minimize customer downtime and ensure original equipment standard compliance, every component undergoes rigorous inspection, testing, and verification in an advanced electronics lab. Beyond parts distribution, the company delivers comprehensive, global support through 24/7 technical assistance, expert troubleshooting, component repair services, and rapid shipping, ensuring optimal efficiency and long-term reliability for critical industrial operations worldwide.
What is GE IS210JPDDG2A?
It is a DC Power Distribution Assembly Module (JPDD) developed by General Electric for the Speedtronic Mark VIe turbine control series. It functions as a centralized routing interface that splits a primary DC input source into six separate fused and switch-isolated outputs for secondary field application and wetting paths.
What is the main purpose of the GE IS210JPDDG2A board?
It serves as a branch circuit power distribution interface in Mark VIe control panels. It takes a primary DC input line and safely splits it into six fused, switch-isolated outputs to run relay solenoids and supply contact wetting voltages.
What distinguishes the JPDDG2A variant from the standard JPDDG1 model?
The JPDDG1 variant features fixed fuse configurations for general cabinet wiring. The JPDDG2A variant is built to support flexible, custom fuse configurations to handle specific load ratings or local field application requirements.
Can you run multiple DC voltages through the board simultaneously?
No. While the card's traces are rated to handle either 24 V DC, 48 V DC, or 125 V DC power, it can only process one specific voltage level at any given time. Mixing voltages on the same card will cause component damage and system short-circuits.
Why does each output circuit feature two fuses and a dual-pole switch?
This symmetrical layout places a fuse and switch contact on both sides of the DC loop. This makes the board fully compatible with floating DC power distribution systems, ensuring safe branch isolation if a field wire faults.
