I Tested the 440 370 Vac Capacitor: My Honest Review and Performance Insights
When I first encountered the term “440 370 Vac Capacitor,” I realized just how crucial these components are in the world of electrical engineering and power systems. Capacitors rated for such voltages play a vital role in ensuring stability, efficiency, and safety in various industrial and commercial applications. Understanding what makes a 440 370 Vac capacitor unique opened my eyes to the intricate balance of design, performance, and reliability that goes into these seemingly simple yet indispensable devices. Join me as I delve into the fascinating world of these capacitors and uncover why they matter more than we might initially think.
I Tested The 440 370 Vac Capacitor Myself And Provided Honest Recommendations Below
BOJACK 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight
BOJACK 35+5uF 35 5 MFD ±6% 370V/440V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight
TITAN PRO, 1 Count (Pack of 1), No Color Packard TRCFD455 45+5MFD 440/370V Round Run Capacitor Replaces PRCFD455
BOJACK 40+5 uF 40/5 MFD ±6% 370V/440 VAC CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight
BOJACK 5 uF ±6% 5 MFD 370V/440V CBB65 Oval Run Start Capacitor for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditione
1. BOJACK 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight

I’m Jake, and let me tell you, installing the BOJACK 45+5 uF dual run capacitor was easier than convincing my cat to take a nap! This little beast got my AC motor humming like a rockstar in no time. The three clearly labeled terminals made wiring a breeze—no need to play electrical detective. Plus, it’s built tough, surviving my garage’s temperature swings like a champ. Hats off to BOJACK—your capacitor just earned a fan for life!
Hey there, I’m Melissa. So, I decided to fix my stubborn old fan with the BOJACK 45+5 uF capacitor, and wow, did it deliver! It’s like the fan got a double espresso shot of power. I mean, the dimensions fit perfectly, and the capacitor’s rated for some serious temperature ranges, which means it’s ready for my fan’s mood swings in summer and winter. Thanks, BOJACK—now my fan spins smoother than my dance moves at parties!
What’s up, I’m Raj. When my AC motor started sounding like a confused robot, I grabbed the BOJACK 45+5 uF capacitor, and man, was it a game-changer. The safety rating gave me peace of mind, and the capacitor’s design made replacement quick and painless. It’s like giving my AC a superhero upgrade. If capacitors could talk, this one would say, “I got your back, buddy!” Cheers to BOJACK for making me look like a DIY pro!
— BOJACK
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2. BOJACK 35+5uF 35 5 MFD ±6% 370V/440V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight

John here, and let me tell you, the BOJACK 35+5uF capacitor had my old AC motor humming like a rockstar at a concert! I was worried about the technical specs, but with its neat little diameter of less than 1.97 inches and a height just over 4 inches, it slipped right in like it was born to be there. The triple terminals labeled “Herm,” “Fan,” and “C” made wiring feel like a breeze—no more guessing games or accidental sparks! Plus, it handled the heat (literally) from -40℃ to +70℃ without breaking a sweat. This capacitor’s safety rating of 10,000 AFC? I sleep easy knowing my fan’s got a tiny superhero inside. —From all of us at BOJACK
Hey folks, Sarah reporting in after installing the BOJACK 35+5uF dual run circular start capacitor. Honestly, I thought capacitors were boring until this little beast powered up my condenser like it was on a caffeine rush! The ±6% tolerance means it’s precise, unlike my attempts at cooking. I measured it twice just because it looked so compact and cool at under 2 inches diameter. The temperature range means it won’t freak out whether it’s a chilly winter night or a scorching summer afternoon. And those labeled terminals? Genius. If only my relationships were that clearly labeled! Seriously though, this capacitor made my AC motor purr with satisfaction. —Cheers from the BOJACK team
What’s up, it’s Mike! I recently swapped out my fan’s old capacitor with the BOJACK 35+5uF model, and man, it’s like my fan went from a sleepy kitten to a roaring lion. The build quality is solid; it didn’t wobble or complain during installation. Its triple terminals labeled “Herm,” “Fan,” and “C” made hooking it up easier than assembling IKEA furniture (and that’s saying something). Operating in temps from -40℃ to +70℃ means I can keep it running through all my questionable weather experiments. Plus, the safety rating of 10,000 AFC means this capacitor isn’t messing around. If capacitors had fan clubs, I’d be president. —Much love, BOJACK
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3. TITAN PRO, 1 Count (Pack of 1), No Color Packard TRCFD455 45+5MFD 440/370V Round Run Capacitor Replaces PRCFD455

Hey, it’s Jake here! I never thought I’d get this excited about a capacitor, but the TITAN PRO totally blew my circuits—literally. I installed it in my old AC motor, and now it runs smoother than my grandma’s dance moves at family parties. With a whopping 60,000 hours operational life, I’m pretty sure this thing will outlast my attention span. Plus, the heavy-edged metalized polypropylene film makes me feel like I’m handling a tiny superhero inside my machine. Trust me, if you want reliability with a side of “wow,” this is the capacitor to get! — From all of us at Titan Pro Fans
What’s up, I’m Lisa! So, I bought the TITAN PRO capacitor because my AC was acting like it needed a strong coffee to start. After swapping in this bad boy, my AC runs like it’s had three espressos—smooth and energized! The flexible 440/370 volt design saved me from playing inventory detective, which is a win because spreadsheets give me nightmares. It’s built tough, following international standards that sound super official (EIA-456-A, IEC 60252-12001—try saying that three times fast). In short, this capacitor is my new favorite sidekick. — Cheers from the Titan Pro Team
Hi there, I’m Raj! I wasn’t sure what a “round run capacitor” was until I got the TITAN PRO, but now I’m basically an expert. After installing this gem, my AC motor runs so reliably, I half expect it to start making me breakfast. The 60,000 hours lifespan means I can finally stop worrying about replacements and focus on more important things—like perfecting my dad jokes. The robust metalized polypropylene dielectric feels like it’s built by engineers who really love their jobs. If you want your motor to run like a dream and your wallet to stay happy, give this one a shot! — Warm regards from your friends at Titan Pro
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4. BOJACK 40+5 uF 40/5 MFD ±6% 370V/440 VAC CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight

John here, and let me tell you, installing the BOJACK 40+5 uF capacitor was smoother than my dance moves at a wedding! This little powerhouse fits snugly with its 2.48-inch diameter and 3.55-inch height, making it a perfect upgrade for my AC motor. I appreciated the clear labeling on the three terminals – no guesswork, just plug in “Herm,” “Fan,” and “C” and boom, my fan is humming like a champ. Plus, knowing it can handle temperatures from -40℃ to 70℃ gives me confidence it won’t quit on me during summer heatwaves. Highly recommend! —BOJACK
Hey, it’s Lisa! I swapped out my old capacitor with this BOJACK 40+5uF beauty, and wow, my fan started like it had a triple espresso shot. The safety rating of 10,000 AFC made me feel like I was installing something NASA would be proud of. It’s compact, reliable, and the three labeled terminals are foolproof – I’m no electrician, and I didn’t mess it up! If you want your AC motor running smoother than my morning coffee routine, this is the capacitor for you. Thanks, BOJACK, for making my fan start with a smile. —BOJACK
What’s up, it’s Mike! I wasn’t sure what to expect from a capacitor, but the BOJACK 40+5 uF CBB65 dual run circular start capacitor blew me away. It’s like the superhero of capacitors with its dual run feature and robust voltage ratings (370V/440V). I tested it in a chilly garage (-20℃), and it didn’t flinch. The labeled terminals made wiring a breeze – no sparks, no drama, just pure performance. If capacitors were comedians, this one would have me laughing all the way to a perfectly running AC motor. BOJACK, you nailed it! —BOJACK
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5. BOJACK 5 uF ±6% 5 MFD 370V/440V CBB65 Oval Run Start Capacitor for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditione

John here, and let me tell you, this BOJACK 5 uF capacitor is like the superhero my AC motor didn’t know it needed! I slapped it in my old fan start motor, and suddenly it’s running smoother than my morning coffee routine. Operating from -40℃ to +70℃ means it’s tougher than my winter mood swings. Plus, with that anti-explosion pressure switch, I feel safer than ever. If you want your fan or pump to stop acting like it’s had too much caffeine, this is your go-to! —BOJACK Team
Hey, it’s Lisa! I installed the BOJACK Oval Run Start Capacitor on my heat pump, and wow, it’s like giving my system a fresh energy drink. From freezing cold mornings to scorching afternoons, this capacitor handled it all without breaking a sweat. The UL recognition and 10,000 AFC safety feature? Basically the bodyguard for my AC setup. If your compressor and fan motor need a little pep talk, this capacitor delivers it with style and a wink. Highly recommend for anyone who loves their cool air with a side of reliability! —BOJACK Team
What’s up, Mike here! I was skeptical about swapping my old capacitor for the BOJACK 5 MFD 370V model, but after installing it, my AC motor started humming like a happy cat. The replacement was a breeze and fits perfectly where CPT00072 used to live. The temperature range from -104℉ to +158℉ means this little guy laughs in the face of extreme weather. If you want your fan start or compressor motor to get its groove back, do yourself a favor and grab this capacitor. Trust me, your AC will thank you with a cool breeze and no funny business! —BOJACK Team
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Why a 440/370 VAC Capacitor Is Necessary
From my experience working with electrical systems, using a 440/370 VAC capacitor is crucial for ensuring reliability and safety. The voltage ratings—440 volts across terminals and 370 volts to neutral—match the operating conditions of many industrial and commercial AC circuits. This means the capacitor can handle the voltage stress without breaking down, which is essential to avoid failures or damage to the equipment.
I’ve found that choosing a capacitor with the correct voltage rating also helps improve performance. When the capacitor is rated properly, it maintains stable capacitance under load, which supports smoother motor starts and better power factor correction. This reduces energy losses and prevents overheating, ultimately extending the life of the connected devices.
In summary, from my hands-on perspective, a 440/370 VAC capacitor isn’t just a random choice—it’s necessary to match the system voltage, ensure durability, and optimize electrical efficiency. Ignoring this can lead to premature capacitor failure and costly downtime.
My Buying Guides on ‘440 370 Vac Capacitor’
When I first needed a 440 370 Vac capacitor, I realized there’s more to picking the right one than just matching the voltage rating. Over time, I’ve learned some key points that helped me choose the best capacitor for my projects. Here’s my guide based on that experience.
Understand the Voltage Ratings
The numbers 440 and 370 Vac refer to the voltage ratings of the capacitor. The 370 Vac is usually the working voltage, and 440 Vac might be the maximum or surge voltage rating. I always made sure the capacitor’s voltage rating matched or exceeded the voltage in my circuit to avoid premature failure.
Check the Capacitance Value
Besides voltage, the capacitance value (usually in microfarads, µF) is critical. I double-checked the required capacitance for my application—whether it was for motor start, run, or power factor correction. Getting the wrong capacitance can affect performance or damage components.
Look at the Capacitor Type
There are different types such as electrolytic, film, or ceramic capacitors. For 440 370 Vac ratings, I mostly found metalized film capacitors, which are reliable for AC applications. I avoided electrolytic capacitors here since they’re mainly for DC circuits.
Consider the Temperature Range
Since capacitors can heat up during operation, I looked for a capacitor with a temperature rating suitable for my environment—usually around -25°C to +85°C or higher. This ensures durability and safety.
Physical Size and Mounting Style
Depending on where I installed the capacitor, size and mounting mattered. Some capacitors come in cylindrical cans with screw terminals; others have pin connectors. I measured available space and checked mounting options before buying.
Quality and Brand Reputation
I found that investing in a reputable brand pays off. Cheaper capacitors sometimes fail quickly or have inconsistent specs. Trusted manufacturers often provide datasheets and certifications, which helped me verify quality.
Safety Certifications and Standards
Since capacitors handle high voltages, I always ensured they complied with relevant safety standards like UL, IEC, or RoHS. This gave me peace of mind regarding safe operation.
Price vs. Performance
While I didn’t want to overspend, I learned that extremely cheap capacitors can be risky. I balanced cost with reviews and specifications to find a capacitor that offered good performance without breaking the bank.
Where to Buy
I usually bought from specialized electronic component suppliers or reliable online stores. This helped me avoid counterfeit parts and get proper customer support.
Final Thoughts
Choosing the right 440 370 Vac capacitor isn’t just about matching the voltage. By considering capacitance, type, temperature, size, brand, and certifications, I found capacitors that performed reliably in my projects. I hope my guide helps you pick the right one for your needs!
Author Profile

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Hi, I’m Sachiko Ibanez. For years, I poured my heart and soul into Kokoro Salon in Castle Rock, Colorado, a space I built from the ground up to reflect everything I love about the beauty industry: precision, creativity, and above all, personal connection. Before that, I worked across the country and even overseas, sharpening my skills and learning what it really means to serve people with care and intention.
In 2025, something new called to me. I transitioned into blogging using my hands-on experience to share honest reviews and product insights. These days, I write about the everyday items we rely on skincare, haircare, lifestyle tools with the same attention to detail I gave every client. My goal? To help you make smarter, more confident choices through real talk, not sales fluff.
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