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ABB MP9-20933K Capacitor  

1. Key Parameters

• Product Model: MP9-20933K
• Product Series: ABB MP9-Series Industrial Metallized Polypropylene Film Capacitors (Power Quality & Filtering)
• Core Function: Power factor correction (PFC); AC/DC voltage filtering; low dielectric loss; compatible with industrial low-voltage power circuits.

2. Core Features

• High Stability: Metallized polypropylene dielectric ensures low dielectric loss (tanδ≤0.001) and stable capacitance over temperature/voltage, suitable for long-term operation.
• Self-Healing Function: Damaged dielectric areas automatically isolate (via metal layer evaporation), avoiding capacitor breakdown and improving reliability.
• Dual-Voltage Compatibility: Supports 400V AC (continuous) and 630V DC (peak), adapting to both AC power correction and DC circuit filtering.
• Compact Design: Small cylindrical package (φ16×35mm) fits dense PCB or control cabinet layouts, saving installation space.

3. Application Fields

• Power Factor Correction: Used in industrial low-voltage panels to improve power factor, reducing grid reactive power loss (e.g., motor control circuits).
• Switch Power Supplies: Filters output voltage in industrial SMPS (switch-mode power supplies) for PLCs, sensors, and automation controllers.
• Frequency Converters: Acts as auxiliary circuit capacitor in small inverters, smoothing voltage ripples in control loops.
• HVAC Systems: Corrects power factor of fan/pump motors in heating/cooling systems, enhancing energy efficiency.

4. Precautions

• Voltage Matching: Do not exceed rated voltage (400V AC/630V DC); overvoltage may cause capacitor failure or bulging.
• Installation: No polarity requirement (AC/DC universal), but ensure lead soldering/connection is firm; avoid mechanical stress on leads.
• Maintenance: Replace after service life (10,000h@85℃); check for case bulging/leakage quarterly—replace immediately if damaged.
• Spare Parts: Use genuine ABB MP9-20933K units—non-genuine capacitors may have unstable capacitance or poor self-healing, leading to circuit malfunctions.

The structure and details of the product：

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