Technical Application Guide: High-Performance AC Motor Running and Starting Capacitors

Core Functionality in Induction Motor Systems

Suntan Technology Company Limited offers an extensive portfolio of AC Motor Capacitors engineered to provide the essential phase shift required for single-phase induction motors. These components are critical for both starting torque generation and running efficiency across a wide spectrum of household and industrial applications. Our lineup includes the CBB61, CBB60, CBB65, and CD60 series, each designed to meet specific electrical and environmental requirements.

Product Series Overview

Selecting the correct capacitor involves matching the motor’s duty cycle and housing constraints with our specialized series:

  • CBB61 (TS11-A~9): Primarily used as fan capacitors. Features a rectangular ABS plastic case and epoxy resin filling. Ideal for range hoods, exhaust fans, and ceiling fans.
  • CBB60 (TS11-10~21): Cylindrical run capacitors with plastic cases, commonly integrated into washing machines, water pumps, and power tools.
  • CBB65 (TS11-22~26): Heavy-duty Aluminum case run capacitors, often featuring internal explosion-proof mechanisms. Standard for HVAC compressor motors and refrigerators.
  • CD60 (TS13D3): Motor Starting Capacitors designed for short-duration duty cycles to provide high starting torque in air compressors and heavy machinery.

Spotlight: TS11-6 CBB61 Ceiling Fan Capacitor

The TS11-6 (CBB61) is one of our most sought-after solutions for ceiling fan applications. It utilizes a heavy-edge metallized Al/Zn PP film dielectric, which ensures superior self-healing properties and long-term stability.

Technical Specifications (Example: 20?F 450VAC)

Parameter Value / Performance
Case Dimensions 57 x 32 x 44 mm (Cubic ABS Case)
Dissipation Factor (D.F.) ? 0.003 (at 1kHz) — Low loss for minimal heat generation
Insulation Resistance (I.R.) ? 3000S (MΩ·?F) — High safety and reliability
Dielectric Material Metallized Polypropylene (PP) Film
Operating Temperature -40°C to +85°C

Industrial and Household Applications

Our motor capacitors are integrated into high-reliability systems including:

  • Climate Control: Refrigerator compressors, air conditioner blowers, and HVAC units.
  • Automation: Industrial instrumentation, communication equipment, and automated production line motors.
  • Utility: Single-phase motors in 50Hz/60Hz AC power systems, DC pulse circuits, and power tools.

Design Considerations for Engineers

When integrating a motor capacitor, ensure the following parameters are validated:

  • Capacitance Tolerance: Standard tolerance is ±5% (J) or ±10% (K); precise values are necessary to maintain motor speed and torque.
  • Voltage Rating: The rated voltage should meet or exceed the motor’s peak operating voltage to prevent dielectric breakdown.
  • Thermal Management: Low D.F. is essential to ensure a lower temperature rise, which directly correlates to the component’s MTBF (Mean Time Between Failures).

Technical Support and Customization

Suntan provides full technical documentation and engineering samples for our entire motor capacitor range. For custom lead lengths, terminal types, or specific capacitance values, please contact our technical sales department:

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