Motor Start Capacitor 21-25 MFD 250VAC

Reliable Performance for Everyday AC Motor Applications

Upgrade or replace your existing motor start capacitor with this dependable 21-25 MFD 250VAC Motor Start Capacitor from NTE (Part Number: MSC250V21). Designed for easy installation and maximum durability, this AC electrolytic capacitor helps your motors get the powerful start they need every time.

Key Features of This Motor Start Capacitor

• Capacitance Range: 21μF – 25μF (Microfarads, MFD)
• Rated Voltage: 250VAC
• Construction: AC electrolytic motor start capacitor
• Case: Round plastic, resistant to moisture and oil
• Terminals: Two 0.250” quick-connect (recessed for safety)
• Mounting: Suitable for vertical (terminals up recommended) or horizontal installation with proper vent orientation
• Long Life & High Reliability: Built for consistent, safe starts

Common Applications of the 21-25 MFD 250VAC Motor Start Capacitor

• Furnace blower motor start capacitors
• Large fans and ventilation systems
• Pump motor start (well pumps, pool pumps, etc.)
• AC generator start capacitor replacement
• Machine tools and workshop equipment
• Other intermittent AC motor applications

Technical Specifications

• Capacitance: 21–25 MFD (μF)
• Voltage: 250 Volts AC
• Terminal Spacing: 0.45” on center
• Case Dimensions: 1.43” diameter x 2.75” height
• Quick Connect Terminal Size: 0.250”
• Part Number: MSC250V21

Easy to Use and Versatile

Ideal for both DIY users and repair professionals, this replacement motor start capacitor is easy to install thanks to its quick-disconnect terminals. Its compact size fits most standard motor housings. Designed for safety and long-term performance, it meets the demands of all your home and workshop motor start needs.