Do you think it would be ok to replace a 45uf 250VAC cap with this one and just not use the 5uf terminal?

It is fine to use this capacitor to replace a 45uf 250VAC, as this capacitor is built to withstand higher voltages and will perform well. However, I would check the size of your old capacitor and make sure that they match. This capacitor is 2 3/8" in Diameter by 4" in Height. Thanks, MaxRun Capacitors

it said 1 year warranty in product description, but it also has a "5 year warranty" picture displayed. which is the real warranty? thanks.

Probably 1 if you do it and 5 if you have a licensed electrician

My current capacitor says +-6%, everything else is same. Can I use this even though it says +-5%. What does this % mean? Thanks

The +- is the amount of possible variance from the stated capacitance, 45 MFD. The old Capacitor has a possible 6% variance or 39 to 51 MFD. The MaxRun has a 5% possible variance or 40 to 50 MFD which is a higher standard. 10% higher is considered acceptable, but a lower capacitance is not acceptable.

Can i use a 5mfd cap to replace a 7.5 mfd at least temporary?

No, if your motor was designed to start with a 7.5 mFd then you need that or more

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MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty

MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty

Product ID: 51561237

Details

Brand
MaxRun
Material
Metal
Shape
Round
Operating Voltage
440 Volts
Maximum Voltage
440 Volts

⚡45/5 MFD

🔌370/440 VAC

🛡️10,000 AFC

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Description

🔧 Upgrade Your AC Game with MAXRUN!

SAFETY FIRST - Engineered with a 10,000 AFC safety pressure switch for peace of mind.
UNLEASH DUAL POWER - Effortlessly runs both compressor and fan for optimal cooling.
PRECISION ENGINEERING - Built to EIA-456-A and IEC 60252-1:2001 standards for reliability.
UNIVERSAL COMPATIBILITY - Works seamlessly with both 370 and 440 volts for versatile applications.
HASSLE FREE INSTALLATION - Quick and easy replacement process to get you back up and running.

The MAXRUN 45+5 MFD Dual Run Capacitor is a high-performance component designed for air conditioners and heat pumps. Measuring 4 inches tall and 2 3/8 inches wide, it operates efficiently at both 370 and 440 volts. Built to stringent safety standards, it features a 10,000 AFC safety pressure switch and is free from harmful PBA materials. This capacitor is engineered for easy installation, ensuring a quick replacement process for your cooling systems.

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