My current capacitor is 35/5, but the fan terminal only has 1 connector and 1 wire, this one has 2 fan connectors. How do I know which to use?

If you are talking about the connections on each terminal then it’s fine to have more. Most of the replacement units come with 4 connector prongs per terminal. Those 4 prongs are all one piece of metal and are only there for extra connections if needed. The capacitor rating and quantity of terminals is what’s important, not how many prongs are on each terminal. (Unless it’s fewer than what you need)

Will this work on Armstrong concept 1000 scu10e24a-2?

I am not sure if this will work on the AC you are questioning, but it was the exact one for my 20 plus years old AC. I think they are pretty universal.

This is a perfect match to the one I’m replacing(35+5 440/370 +-6) but the item I received is 35+5 370/440 +-5. Is this okay to use?

I think the main thing is the 35+5 . Looks as if the 370/440 are just switched around. Mostly all that just different distributors. All should be fine..

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MARS - Motors & Armatures 12783 Round 35 + 5 uf MFD 440V VAC Motor Dual Run Capacitor

MARS - Motors & Armatures 12783 Round 35 + 5 uf MFD 440V VAC Motor Dual Run Capacitor

Product ID: 3947095

Details

Brand
MARS
Capacitance
35 microfarad
Material
Metal
Operating Voltage
440 volts
Shape
Round

⚡35 + 5 µF dual capacitance

🔄50/60 Hz universal frequency

🔋440V high voltage rating

R646

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Description

⚡ Power your motor’s comeback with Mars2 precision!

OEM QUALITY ASSURANCE - Brand new Mars2 capacitor ensures perfect fit and long-lasting performance
HIGH VOLTAGE ENDURANCE - Rated for 440V VAC to handle demanding HVAC systems with ease
COMPACT DURABLE DESIGN - Round metal casing (2"x5") built to withstand tough environments
DUAL CAPACITANCE POWER BOOST - 35 + 5 µF for reliable motor startup and smooth operation
UNIVERSAL FREQUENCY COMPATIBILITY - Operates seamlessly at both 50 and 60 Hz for global versatility

The MARS 12783 Round Dual Run Capacitor delivers 35 + 5 microfarads of capacitance at a robust 440 volts, compatible with both 50 and 60 Hz systems. Designed as a direct OEM replacement, its durable metal round casing ensures a perfect fit and reliable performance for universal HVAC and motor applications.

Specifications

ASIN	B005Y1FAMS
Best Sellers Rank	#39,176 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #178 in Industrial Electrical Capacitors
Brand Name	MARS
Capacitance	35 microfarad
Customer Reviews	4.7 4.7 out of 5 stars (1,345)
Global Trade Identification Number	00685744127833
Included Components	1 capcitor
Item Dimensions W x H	2"W x 5"H
Item Shape	Round
Item Type Name	Motor Dual Run Capacitor Round 35 + 5 uf MFD 440 Volt VAC
Item Weight	4.8 ounces
Manufacturer	MARS - Motors & Armatures, Inc.
Material Type	Metal
Maximum Voltage	440 volts
Model	12783
Mounting Type	Rack Mount
Number of Items	1
Number of Packs	1
Operating Voltage	440 volts
Part Number	12783
UPC	685744127833
Unit Count	1 Count
Upper Temperature Rating	70 °C
Warranty Description	Limited lifetime warranty

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R646

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

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