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The IS200JPDDG3A is a DC Power Distribution Board and is part of the GE Speedtronic Mark VIe. The JPDD board provides DC power distribution, power isolation, and branch circuit protection for control or I/O functions requiring 125V DC or 24VDC 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.