Capacitor KEMOT URZ3131 14 µF 450 V for single-phase motors

The KEMOT URZ3131 motor run capacitor with a rated capacitance of 14 µF and rated voltage 450 V is designed for single‑phase electric motors. It provides a stable phase shift for start and run circuits, supporting continuous operation in industrial and household motor applications. The compact fixed‑value design allows straightforward replacement or repair of general‑purpose motors where a 14 µF/450 V run capacitor is specified.

Advantages

This motor run capacitor delivers consistent capacitance under continuous AC conditions, contributing to smoother motor torque and reduced vibration. The 450 V rating gives a safety margin for typical single‑phase mains systems, while the compact form factor simplifies installation in motor enclosures or external capacitor boxes. The fixed‑value construction avoids the need for tuning and ensures reliable long‑term performance when used within specified voltage and temperature limits.

Suitable for

• Replacement of run capacitors in single‑phase induction motors
• General motor repair and maintenance in industrial equipment
• Household appliances and tools driven by single‑phase motors
• HVAC fans, compressors and pumps requiring a 14 µF run capacitor

Key specifications

• Capacitance: 14 µF (microfarads)
• Rated voltage: 450 V AC
• Type: motor run (fixed‑value) capacitor for single‑phase motors
• Application: continuous duty in motor start/run circuits

How to use

Before installation, disconnect power to the motor and discharge any residual charge in the existing capacitor through an insulated resistor or manufacturer‑recommended procedure. Verify that the replacement capacitor's capacitance and voltage rating match the motor's requirements. Mount the capacitor securely in a location protected from excessive heat, moisture and mechanical shock, and connect terminals according to the motor wiring diagram. After installation, restore power and observe the motor for correct starting and running behavior.

Usage recommendations

Use this capacitor only for applications that specify a 14 µF, 450 V motor run capacitor. Avoid operating the capacitor above its rated voltage or in environments exceeding the manufacturer's temperature and humidity limits. Periodic inspection for signs of swelling, leakage or terminal corrosion is recommended; replace the capacitor if any deterioration is observed.