Would this be able to take a 4awg wire?

Yes, you can use a 4awg wire in your setup. That's what I'm using in my solar battery box. To get the 4awg wire to fit, you have to unscrew the main cap, unscrew the flathead screw to release and remove the red insert, then strip the 4awg wire casing off and from there you will need to cut some of the strands off for it to fix. It worked for me.

Is the circuit supposed to be connected when the arm is up or down? I bought 2 of these and both appear to complete the circuit when the arm is up.

The arm should be down to complete the circuit. If you have a multi meter that checks ohms, run a ohms check in the fuse itself. Up position should show an open circuit.

How many breakers in the package ? Two are pictured.

They are a 2 pack. These are real good quality also.

Not sure, but it is a breaker so I would not think it is. I do have a diode on one that is being used on a 24v to 12v buck converter.

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40A Inline Circuit Breaker Reset Fuse, 12V-24V DC Reset Fuse Holder 40 amp with Manual Reset for Car Audio Stereo Switch and Solar Inverter System (2 Pack)

Product ID: 290969112

Details

Brand
Temank
Current rating
40 Amps
Product dimensions
35D x 43W x
Circuit breaker type
Standard
Mounting type
Screw Mount

🔌40A Power Capacity

🌡️Wide Temp Range

🌧️Waterproof Design

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719807₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Power Up Your Protection with Style!

💧 BUILT TO LAST - Featuring rubber boots for superior water protection, perfect for any environment.
🔒 RELIABLE PROTECTION - Safeguard your devices with a robust 40A manual reset circuit breaker.
🛠️ EASY INSTALLATION - Mount effortlessly on panels or firewalls, saving you time and hassle.
⚡ VERSATILE COMPATIBILITY - Ideal for 12V/24V systems including solar setups, car audio, and marine applications.
💰 COST EFFECTIVE SOLUTION - Avoid frequent replacements with this durable inline fuse holder.

The Temank 40A Inline Circuit Breaker is a manual reset fuse holder designed for 12V-24V DC systems, providing reliable protection for your car audio, solar inverter, and more. With a waterproof design and a wide operating temperature range, this durable solution is perfect for various applications, ensuring your devices stay safe and functional.

Specifications

Brand	Temank
Current Rating	40 Amps
Voltage	24 Volts, 12 Volts
Item Dimensions LxWxH	3.85 x 1.69 x 1.37 inches
Circuit Breaker Type	Standard
Mounting Type	Panel Mount
Number Of Poles	2
Manufacturer	Y-SOLAR
Item Weight	0.81 ounces
Product Dimensions	3.85 x 1.69 x 1.37 inches
Item model number	Breaker2-40A*2-F
Is Discontinued By Manufacturer	No
Manufacturer Part Number	Breaker2-40A*2-F

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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