40µF (40uF) 250VAC Motor Start Capacitor | E348072 | NGM61B1D250040NNCA

What does a 40µF motor start capacitor do?
A 40µF start capacitor provides the initial electrical boost required to start a single-phase electric motor. It helps generate the torque needed to overcome inertia and start the motor smoothly.

Where is a 40µF start capacitor commonly used?
40µF start capacitors are commonly used in air compressors, water pumps, HVAC systems, and refrigeration equipment where strong starting torque is required.

What happens if a 40µF start capacitor fails?
If the capacitor fails, the motor may hum without starting, struggle under load, or trip circuit breakers due to increased current draw.

Can I replace a 40µF capacitor with a different µF rating?
No. Always replace the capacitor with the same microfarad (µF) rating and voltage specification to ensure proper motor performance and avoid damage.

What is the difference between a start capacitor and a run capacitor?
Start capacitors are used only during motor startup to provide high starting torque, while run capacitors remain in the circuit during normal operation to improve efficiency.

How can I tell if my start capacitor is faulty?
Common signs include a motor that hums but won’t start, slow or inconsistent startup, overheating, or repeated tripping of electrical protection devices.

Type: Motor Start Capacitor

Capacitance: 40µF (40uF)

Voltage: 250VAC

Applications: Electric motors, compressors, HVAC units

Code: E348072

Identification: NGM61B1D250040NNCA

Diameter: 36mm

Height: 81mm

Durable Construction
Crafted with a rugged ABS plastic housing, this start capacitor is built to endure harsh operating environments and extended usage cycles.

Reliable Motor Startup
Delivers a high initial torque burst essential for starting single-phase motors in HVAC units, compressors, and pumps—ensuring reliable performance every time.

Hassle-Free Installation
Features a lug-type terminal design and a 120mm lead length for quick, secure, and flexible installations across various electrical setups.

Compact, Standalone Mounting
The standalone form factor provides flexibility in placement and simplifies integration into different motor assemblies.

Consistent Performance
With a rated voltage of 250VAC, this capacitor maintains dependable power delivery across a wide range of industrial and residential motor applications.

Secure Stud Connection
Includes a 4mm mounting stud for stable attachment to your equipment, reducing the risk of disconnection from vibration or movement.