GE DS3820PSCB1C1B Mark‑IV Turbine Control Power‑Supply Module

Product Description

DS3820PSCB1C1B is a rack‑mounted regulated power‑supply module dedicated for GE Mark‑IV gas and steam turbine control systems. It provides stable +5V, ±15V DC regulated power for 

the main processor, analog signal boards and digital I/O circuits inside the turbine cabinet. Housed in a heavy‑duty metal chassis with built‑in heat‑sink, fuses and over‑voltage protection components, 

this unit guarantees continuous, clean power output even under harsh electromagnetic‑interference conditions of thermal‑power plants. It is a critical spare‑part for turbine startup, sequence control, 

temperature monitoring and equipment safety‑protection loops.

3. Technical Specifications

• Full Model: DS3820PSCB1C1B
• Brand: General Electric, Origin: United‑States
• Compatible System: GE Mark‑IV Turbine Control System
• Main Output Voltages: +5 VDC, ±15 VDC regulated output
• Enclosure: Metal chassis with integrated aluminium heat sink
• Internal Components: DS3800 series sub‑boards, electrolytic capacitors, inductors, fuses, MOV surge suppressors
• External Connector: 4‑pin female power‑signal jack
• Installation: Bolt‑on rack chassis mounting inside turbine control cabinet
• Operating‑Temperature: ‑20℃ ~ +65℃
• Storage‑Temperature: ‑40℃ ~ +85℃
• Ambient Humidity: 5%‑95% non‑condensing
• Net Weight: Approx. 6.42 kg

• Certifications: Industrial power‑plant EMC compliance, UL

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4. Key Features

1. Multi‑channel well‑regulated DC power output specially designed for Mark‑IV turbine controller hardware
2. Integrated surge, over‑current and fuse protection prevents downstream control‑board damage
3. Large heat‑sink chassis ensures excellent thermal dissipation for long‑term 24‑7 power‑plant operation
4. Rugged metal housing improves vibration‑resistance and electromagnetic‑shielding performance
5. Standard bolt‑on chassis design for fast on‑site replacement and maintenance downtime reduction
6. Built‑in test‑point terminals facilitate field voltage inspection and fault troubleshooting
7. Strict factory burn‑in test before shipment for high reliability in thermal‑power generation environments
8. Dedicated power spare‑part for gas‑turbine, steam‑turbine and combined‑cycle power‑unit control cabinets