MPP Motor Start Capacitors — High Starting Torque for Single-Phase Motors
High-capacitance MPP film capacitors designed to provide the initial energy boost for starting single-phase induction motors. Engineered for quick startup, high starting torque, and safe automatic disconnect via centrifugal switch.
Powerful Startup, Safe Operation
Tesla Capacitors' Motor Start Capacitors are designed for intermittent duty operation, providing the high starting torque needed to accelerate single-phase motors from standstill to operating speed. Once the motor reaches approximately 75% of its rated speed, the centrifugal switch disconnects the start capacitor from the circuit.
Built with high-quality metallized polypropylene (MPP) film, these capacitors offer excellent self-healing properties, low losses, and reliable performance in demanding applications. They are the preferred choice for pump makers and industrial equipment suppliers.
Key Features
High Starting Torque
Delivers 3-5× the normal torque during motor startup phase for rapid acceleration.
Intermittent Duty Design
Optimized for short-duration startup operation per P0 Class.
Self-Healing Film
Metallized film automatically clears dielectric weak spots for extended life.
Applications
How Motor Start Capacitors Work
Motor is at standstill. Start capacitor is connected via centrifugal switch.
Capacitor provides phase shift, creating high starting torque.
Motor reaches ~75% speed. Centrifugal switch disconnects capacitor.
Motor runs on run capacitor (separate) or without capacitor.
Technical Specifications
Electrical Specifications
Mechanical & Environmental
Standard Ratings Table
| Capacitance | Voltage (VAC) | Tolerance | Application |
|---|---|---|---|
| 50µF | 220V | ±10% | Small Pump / Motor |
| 80µF | 220V | ±10% | Water Pump |
| 100µF | 220V | ±10% | Refrigeration / Compressor |
| 150µF | 220V | ±10% | Large Pump / AC |
| 200µF | 220V | ±10% | Industrial Motor |
| 300µF | 220V | ±10% | Heavy Industrial |
| 400µF | 220V | ±10% | Heavy Industrial |
Motor Start vs. Motor Run Capacitors
Motor Start Capacitor
-
Used during startup only -
Higher capacitance (30µF - 120µF) -
Intermittent duty (P0 class) -
Disconnected by centrifugal switch -
Maximum 3 sec per start -
For hard-to-start loads
Motor Run Capacitor
-
Used continuously during operation -
Lower capacitance (1µF - 100µF) -
Continuous duty (P0 Class) -
Permanently connected in circuit -
3,000+ hours life -
Improves motor efficiency
The Tesla Advantage
100% Tested
Every capacitor undergoes rigorous testing including capacitance, voltage withstand, and thermal cycling.
Premium Quality
High-grade MPP film from trusted suppliers ensures consistent performance and reliable startup.
Fast Delivery
Robust inventory of standard ratings for same-day or next-day dispatch across India.
Frequently Asked Questions
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