HFC-MPS 20uf 450V Box Capacitor – 28mm

HFC-MPS 20µF 450V Box Capacitor (Non-Polarized) is a robust, high-performance film capacitor engineered specifically for demanding AC motor run and power factor correction applications. This Metalized Polypropylene Film Series (MPS) component offers exceptional stability and low dissipation factors, making it superior to electrolytic alternatives for continuous duty cycles. Therefore, you can rely on this capacitor to deliver consistent energy storage and smooth operation for single-phase motors and pumps. The durable, flame-retardant epoxy resin box design provides mechanical stability and protection, ensuring a long operational life. Furthermore, its non-polarized construction allows seamless integration into AC circuits without concern for polarity, simplifying your wiring and deployment process.

Key Features:

• Metalized Polypropylene Film (MPP): This construction ensures a very low dissipation factor (tan δ) and exceptional self-healing properties, maximizing longevity and reliability under voltage stress.
• High Rated Voltage: With a 450 V_AC rating, the capacitor safely handles the requirements of most standard residential and industrial single-phase AC systems.
• Non-Polarized Design: The component is inherently non-polar, allowing it to function continuously in AC circuits, unlike polarized electrolytic capacitors.
• Excellent Frequency Stability: It maintains stable capacitance across a broad temperature and frequency range, consequently improving motor efficiency.
• Flame Retardant Housing: Encased in a durable, sealed plastic box with epoxy resin filling, it provides protection against moisture and meets UL 94 V-0 standards.

Technical Specifications:

• Nominal Capacitance (C_N): 20 µF
• Rated Voltage (V_AC): 450 V_AC (50/60 Hz)
• Capacitance Tolerance: ±5% (Class J)
• Dissipation Factor (tan δ): ≤ 0.002 (at 1 kHz, 25°C)
• Insulation Resistance (I.R.): ≥ 3000 MΩ · µF
• Operating Temperature Range: −40°C to +85°C
• Life Expectancy: Minimum 3,000 hours (Class C)

Mechanical Specifications:

• Dielectric Material: Metalized Polypropylene Film (MPP)
• Package Type: Rectangular Plastic Box (Sealed with Epoxy Resin)
• Terminals: Flexible Wire Leads (Typically 18 AWG)
• Mounting: Fixed with mounting stud or clamp (Requires external hardware)

Dimensions:

• Body Width: ≈ 28 mm
• Body Height: Varies by manufacturer (Typically ≈ 55 mm)
• Body Length: Varies by manufacturer (Typically ≈ 75 mm)
• Lead Length: ≈ 200 mm (Pre-stripped wire leads)
• Weight: ≈ 100 g

Pinout and Wiring:

• Terminals: The two wire leads are electrically identical as the component is non-polarized.
• Motor Run Connection: Connect one lead to the auxiliary (start) winding and the other lead to the main power line (typically L1).
• Wiring Note: Ensure all connections are secure and rated for the full 450 V_AC to prevent short circuits. In contrast to starting capacitors, this component remains permanently in the circuit during operation.

Datasheet Reference:

• Download CBB60 Series Motor Run Capacitor Datasheet

Commonly Used in:

• HVAC Systems: Critical for the operation of air conditioning compressors and blower motors.
• Water Pumps: Providing the necessary phase shift for starting and running various submersible and surface water pumps.
• Industrial Machinery: Utilized in single-phase machine tools, conveyors, and small industrial equipment.
• Power Factor Correction: Improving the power factor of inductive loads in various electrical setups.

Applications:

• Motor Running: Maintaining the phase shift between the run and start windings of single-phase induction motors for continuous torque generation.
• Current Filtering: Used in higher power audio amplification circuits (though less common than motor applications).
• Voltage Smoothing: Providing bulk capacitance in specific high-voltage power supply designs.

Equivalent Models:

• CBB60 Series (20uF 450V): A generic industry standard part number for metalized film motor run capacitors that is fully interchangeable.
• MEC20uF450V: Various manufacturer-specific part numbers using the same core specifications.
• CBB65 20uF 450V: A similar capacitor with the same capacitance and voltage rating.
• EPCOS 20uF 450V: Another equivalent capacitor with comparable specifications.
• Run Capacitors Class C: Any capacitor meeting the 20µF ±5% and 450V_AC rating with a Class C minimum life rating (3000 hours).

Package Includes:

• 1 x HFC-MPS 20µF 450V Motor Run Box Capacitor