Which side of the breaker is the input Source and which side is connected to the Load?

The way I understand thing - there is no input or output. You could connect your wires the way it suits you most. With that being said, some people will put the "input" wires on the bottom and the "output" ones on the top. At least, that's what I did.

I would like a diagram of exactly how to wire this up. also, i see the seller mentioned a manual. can i request one also?

This breaker is as simple as it gets. As you look at the breaker there is a plus and minus indicators at the very top of the breaker. This is where your 12 volt supply connects. The 2 bottom terminals correspond directly to the 2 top terminals, positive on the right, negative on the left, top to bottom. These terminals on the bottom are what you connect the load you are protecting to, for example a solar charge controller or a solar array. The wiring schematic is located on the front of the breaker. I can't answer to the manual, I did not need one. You can go to You Tube and view a number of tutorials on these breakers.

Are the terminals large enough to take a 1/0 awg cable?

The terminals are small for 1/0 but good for smaller wires from PV.

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DC Miniature Circuit Breaker, 2 Pole 1000V 20 Amp

Product ID: 348183578

Details

Brand
CHTAIXI
Circuit Breaker Type
Standard
Current Rating
20 A
Mounting Type
DIN Rail Mount
Product Dimensions
2.95"D x x

⚡1000V high-voltage rating

🔒Reliable 2-pole isolation

⏱️Instant thermal magnetic trip

€ 35.21

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Break free with instant, reliable DC power protection!

ARC DEFYING DESIGN - Advanced magnetic arc extinguishing technology tackles the toughest DC arcs effortlessly.
RAPID RESPONSE TRIP - Electromagnetic trip system activates instantly to prevent damage and downtime.
TRUSTED TOP RANKED - Highly rated (#3 in Miniature Circuit Breakers) with 4.7 stars from 184 pro users.
POWERHOUSE PROTECTION - Safeguards your solar PV and DC systems from overloads and short circuits with precision.
SEAMLESS DIN RAIL MOUNT - Easy screw clamp wiring and standard 35mm DIN rail installation for quick setup.

The CHTAIXI DC Miniature Circuit Breaker is a robust 2-pole, 20 Amp, 1000V rated device designed for solar PV and other DC power systems. Featuring a thermal magnetic trip and magnetic arc extinguishing system, it ensures rapid circuit protection and safe isolation. Its DIN rail mount and screw clamp wiring enable easy installation, making it a top choice for professionals seeking dependable, high-performance DC circuit protection.

Specifications

ASIN	B0983ZS2WG
Best Sellers Rank	#11,104 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Miniature Circuit Breakers
Brand Name	CHTAIXI
Circuit Breaker Type	Standard
Current Rating	20 A
Customer Reviews	4.7 4.7 out of 5 stars (184)
Item Dimensions D x W x H	2.95"D x 1.42"W x 3.15"H
Item Weight	6.35 ounces
Manufacturer	CHTAIXI
Model	DZ47Z-63
Mounting Type	DIN Rail Mount
Number of Poles	2
Part Number	47Z63-2P1000
Voltage	1000 volts

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