Three-Phase Bridge Rectifier Module User Manual
Model: MDS100A 1600V (Compatible with MDQ100A series) | Marca: Wicovery Origin: Mainland China
Pesteview
The MDS100A 1600V rectifier module converts AC input into DC output for power supply applications. It is designed for high-current operation, using a welded structure for improved temperature and power-cycle performance, and it includes isolation and thermal considerations for safe use under rated limits.
Quick Setup / Use
- Disconnect all power sources before handling the module.
- Mount the module to a suitable heat sink (recommended for high-current use) using the self-contained mounting holes; apply thermal grease between the module and heat sink.
- Wire the input/output terminals as follows:
- Single-phase rectification (MDQ series): connect the AC inputs to the ~ terminals; connect the DC output to the + and – terminals.
- Three-phase rectification (MDS series): connect the three-phase AC inputs to the three ~ terminals; connect the DC output to the + and – terminals (use the schematic on the module label).
- Tighten all terminal bolts to the manufacturer’s recommended torque.
- Inspect wiring and insulation to confirm there are no short circuits between terminals, then apply power gradually and monitor for abnormal heat, noise, or sparking.
- During continuous operation, keep within rated voltage/current limits and ensure adequate ventilation or active cooling.
Safety Warnings (Must Read Before Use)
⚠ AVERTIZARE
- Acest produs este NOT suitable for children under 3 years old. It must be used under the direct supervision of an adult at all times.
- Vol. Ridicattage hazard: The module operates with high alternating and direct currents/voltages. Disconnect all power sources before installation, maintenance, or inspection.
- Isolation test: The module has an isolation voltage of 2500VAC, but always confirm the insulation resistance before energizing to prevent electric shock.
- Thermal management: The module can reach high temperatures during operation. Ensure proper heat dissipation and do not touch the module while powered or immediately after power-off.
- Protectie la suprasarcina: Nu depășiți volumul nominaltage (1600V repetitive peak reverse voltage) or rated current (100A output DC current) to avoid permanent damage.
- High-concerned chemicals: No high-concerned chemicals are used in this product.
- Instalare: Use only the self-contained installation method. Ensure terminals are securely tightened to prevent loose connections, overheating, or arcing.
Produs terminatview
This high-quality three-phase/single-phase bridge rectifier module converts alternating current (AC) input into direct current (DC) output. With robust welding technology, excellent temperature and power cycle resistance, and strong over-current capability, it ensures stable performance in power supply applications.
Caracteristici cheie
- Converts AC to DC efficiently with low voltage drop (VTM: 1.5V).
- Durable welded structure for enhanced temperature and power cycle performance.
- Rated for single-phase rectification (MDQ series) or three-phase rectification (MDS series), with 100A DC output current.
- Large over-current capacity, good heat dissipation, and low power consumption.
- Wide applications in industrial power supplies, motor control, and battery charging systems.
Specificații
| Parametru | Valoare |
|---|---|
| Curent DC de ieșire | 100A |
| Three-Phase Input Positive Average Current | 50A |
| Repetitive Peak Reverse Voltage (VRRM) | 1600V |
| Repetitive Peak Inverse Current (IRRM) | 10mA |
| Izolare Voltage (Viso) | 2500VAC |
| Înainte voltage Drop (VTM) | 1.5V |
| Forward Average Current (ITM) | 100A |
| Fază | Single/Trifazat |
| Terminale | 4 (Single Phase) / 5 (Three Phase) |
| Max. Junction Temperature | 150°C |
| Interval de temperatură de funcționare | -40°C to +125°C (recommended) |
| Material | ABS housing + electronic components |
| Culoare | Negru |
| Dimensiuni | 81 x 40 x 35 mm / 3.1 x 1.57 x 1.37 inci |
| EU LVD Compliance | Vol. Scăzuttage: Below 50VAC or 75VDC (for low-voltage applications) |
Instrucțiuni de instalare
- Preparare: Disconnect all power sources. Wear insulating gloves and use insulated tools.
- Montare: Secure the module to a suitable heat sink (recommended for high-current use) using the self-contained mounting holes. Apply thermal grease between the module and heat sink for optimal heat transfer.
- Cablaj:
- Pentru single-phase rectification (MDQ series): Connect the two AC inputs to the ~ terminals, and the DC output to the + and – terminals.
- Pentru three-phase rectification (MDS series): Connect the three-phase AC inputs to the three ~ terminals, and the DC output to the + and – terminals (refer to the schematic on the module label).
- Strângerea terminalelor: Tighten all terminal bolts to the manufacturer’s recommended torque to prevent loose connections.
- Inspecţie: Verify wiring connections and insulation before applying power. Ensure no short circuits exist between terminals.
Instrucțiuni de operare
- Pornire inițială: Gradually apply power to the module. Monitor for abnormal heat, noise, or sparking.
- Funcționare continuă: Ensure the module operates within the rated voltage and current limits. Maintain adequate ventilation or active cooling to prevent overheating.
- Întreţinere: Regularly inspect terminals for corrosion or looseness. Clean the heat sink to maintain heat dissipation efficiency.
Depanare
| Emisiune | Cauza posibila | Soluţie |
|---|---|---|
| Fără ieșire DC | Loose AC/DC connections, faulty input power | Check wiring connections and input power supply |
| Supraîncălzire | Insufficient heat dissipation, overloaded current | Install a larger heat sink, reduce load current |
| Vol. DC scăzuttage | High forward voltage drop, loose connections | Tighten terminals, check for overloading |
| Short circuit failure | Overvoltage/overcurrent, incorrect wiring | Replace the module, verify wiring and load conditions |
Note
- The module is not electrified when not connected to a power source. Always confirm power disconnection before handling.
- This product complies with EU LVD standards for low-voltage applications (below 50VAC or 75VDC).
- Store the module in a cool, dry place away from corrosive environments when not in use.
For any suspected electrical faults, disconnect power before checking connections or inspecting the module.
FAQ
- What is the output DC current rating of the module?
- The rated output DC current is 100A (also listed as Forward Average Current, ITM: 100A).
- Ce este izolarea voltage rating of the module?
- The module isolation voltage is 2500VAC (the manual also advises confirming insulation resistance before energizing).
- What should I do if the module produces no DC output?
- Check for loose AC/DC connections and verify the input power supply, then correct wiring as needed.
- What could cause overheating?
- Overheating can be caused by insufficient heat dissipation or an overloaded current.
- What should I do after a short circuit failure?
- Replace the module and verify wiring and load conditions; the manual indicates overvoltage/overcurrent or incorrect wiring can cause short circuit failure.
Documente/Resurse
 | SQL100A Three-Phase Bridge Rectifier Module |
Referințe
- Manual de utilizaremanual.tools
Published: July 26, 2026