This capacitor replaces the capacitor that i have defective arcotronics 50uf (c.87.0ef3 mkp) ?

I can't find the specs for your arcotronics capacitor. Please look on your capacitor to see if you can find the voltage. If is 370 or 450 volts (370/450V) then this capacitor should work for your application. If the voltage is something else or missing then i'm afraid I can't answer your question. Good luck!

Will this replace a cbb65 (rohs) 55uf =- 5% 450vac c 40/70/21 50/60 hz from a kenmore 253.70251 window unit?

I’m not an expert… I got this for a RV AC unit, but all the specs match so, yes.

currently have a 45 uf +/- 6% 440 vac mars brand can i use this one as replacement even though its a 50uf rating ??

No I would not do that ,try to stick to the original value. A lower value could make the motor run not optimal.

replacing 50uf +5 370vac 50/60hz 40/85/21 - is this unit compatible?

Because the capacitance is 50uf, not 50+5uf, this unit is not compatible. Thanks!

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BOJACK 50 uF ±5% 50 MFD 370V/450V CBB65 Round Run Start Capacitor for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner

BOJACK 50 uF ±5% 50 MFD 370V/450V CBB65 Round Run Start Capacitor for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner

Product ID: 714336827

Details

Brand
BOJACK
Capacitance
50 Microfarad
Material
Polypropylene
Operating voltage
450 Volts
Shape
Round

⚡50µF ±5% precision capacitance

🔥Heat-resistant up to 70°C

🛡️10,000AFC explosion-proof safety

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Description

⚡ Power your comfort with BOJACK — the capacitor that keeps your cool running smooth!

SAFETY FIRST ALWAYS - Industrial-grade 10,000AFC explosion-proof design protects your system and peace of mind.
PRECISION POWER BOOST - 50µF capacitance with ±5% tolerance ensures stable, efficient motor starts every time.
LIGHTWEIGHT YET RUGGED - Aluminum and steel casing delivers durability without bulk, engineered for long-lasting performance.
BUILT TO BRAVE THE HEAT - Operates flawlessly from -40°C to +70°C, perfect for demanding HVAC environments.
UNIVERSAL FIT EFFORTLESS UPGRADE - Round CBB65 design fits most AC motors, fans, and heat pumps—upgrade without hassle.

The BOJACK 50µF ±5% CBB65 Round Run Start Capacitor is a high-performance, industrial-grade component designed for AC motors, fans, and heat pumps. Rated for 370V/450V operation and built with heat-resistant polypropylene and robust aluminum-steel casing, it ensures reliable motor starts and continuous operation in temperatures from -40°C to 70°C. Its explosion-proof 10,000AFC safety rating and universal round design make it a trusted, easy-to-install replacement that enhances HVAC efficiency and durability.

Specifications

ASIN	B07VMH1213
Brand Name	BOJACK
Capacitance	50 Microfarad
Customer Reviews	4.6 4.6 out of 5 stars (554)
Item Shape	Round
Manufacturer	BOJACK
Material Type	Polypropylene Aluminum Polypropylene
Model	BJ-CAP
Operating Voltage	450 Volts
Part Number	BJ-CAP
UPC	768894139441
Upper Temperature Rating	70 Degrees Celsius

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537 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Romania.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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