Square Capacitor

Category Overview

A square capacitor is a critical component that provides the phase shift needed by single-phase asynchronous motors, such as air conditioner outdoor units, refrigerator compressors, washing machine motors and fan motors, at the moment of starting and during continuous running. Thanks to its square body design, it fits easily into narrow installation spaces, and its mounting lugs provide a vibration-resistant connection. At Yedepa.com, in this category we offer technicians and service companies the microfarad (µF) values most frequently requested in the household appliance and HVAC sectors, in the 440 VAC and 450 VAC voltage classes, with 50/60 Hz mains-compatible models.

Products You Can Find in This Category

Our category contains square-bodied motor capacitors in a wide range from low µF values to the mid segment. Our main products chosen for fan motors, small compressors and auxiliary winding applications are:

• Square Capacitor 2 µF 450 VAC 50/60 Hz — ideal for small fan motors, cooker hood and refrigerator fan applications.
• Square Capacitor 2.5 µF 440 VAC 50/60 Hz — frequently used in auxiliary windings where a precise phase shift is required.
• Square Capacitor 3.5 µF 440 VAC 50/60 Hz — suitable for medium-power air conditioner indoor unit fans and evaporator fan motors.
• Square Capacitor 4.5 µF 440 VAC 50/60 Hz — preferred in split air conditioner fan motor and small compressor start applications.
• Square Capacitor 6 µF 450 VAC 50/60 Hz — suitable value for higher-torque fans and mid-segment motor applications.

Selection Criteria and Tips

Choosing the right capacitor directly affects the life and efficiency of the motor. The wrong µF value can cause the motor to draw excess current, overheat and burn out the winding in a short time. The basic criteria you should consider when choosing are:

• Capacitance (µF) value: Must be exactly the same as the value written on the motor label or on the original capacitor. For example, fitting 4.5 µF instead of 3.5 µF alters the motor characteristics.
• Voltage (VAC) class: 450 VAC can be used in place of a capacitor labelled 440 VAC; however, a lower-voltage model must not be fitted.
• Frequency compatibility: As the mains in Turkey is 50 Hz, products marked 50/60 Hz can be used with confidence.
• Connection type: You should choose the version suitable for your motor from the cable-lead (faston) or screw-terminal versions.
• Body mounting: In square-bodied models, the direction of the mounting lug and the chassis clearance are decisive in narrow electrical boxes.

Before replacing the capacitor, always make sure that you have disconnected the power and discharged the capacitor with a resistor; this is critical both for safety and for correct measurement.

Square Capacitor at Yedepa.com

Yedepa.com aims to be the first choice of technicians, technical service companies and B2B buyers in HVAC and household appliance spare parts supply. All products in our square capacitor category consist of tested, long-lasting models that match the µF and VAC values on the label. Thanks to our in-stock range extending from 2 µF to 6 µF, you can obtain the different values you need for your service vehicle together in a single order. For technical specifications, compatibility questions or bulk purchase requests, the Yedepa.com customer line and our technical team are always at your side.