Did inside two terminal for two hot 120 V wire become one 240 V circuit and outside two terminal for other 240V circuit?

Yes the inside pole trip together and outside poles together https://s3.amazonaws.com/dcc-data-extract/new-delta/asset/Compas/daily/Compas/2020-07-02/Specification%20Sheet/SIE_BR_QT.pdf

Is this compatible with a GE panel?

We do not test our breakers in our competitors panels you would need to get with GE to see if this is approved for their panel.

Will this work to replace an eaton bq230230? Eatons compatibility chart only shows single double not quads listed.

I bought this more than 4 years ago for my previous house. If I recall correctly this was a quad breaker for two 220V (using both black & red wires). A double breaker is for two 110V. The overall size for both is the same.

Will this breaker fit on a full size bus stab or only on the shorter, half length bus stabs? Please show an image of the breaker jaws.

Load center stabs that accept Type QT breakers will be full size but with a U-shaped notch in them to accommodate the rejection feature of the breaker. These are typically the bottom-most spaces of a load center designed to accept Type QT breakers. Check the label to make sure the QT is listed.

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Siemens Q23030CT2 Two 30-Amp Double Pole Circuit Breaker

Siemens Q23030CT2 Two 30-Amp Double Pole Circuit Breaker

Product ID: 15329765

Details

Brand
SIEMENS
Circuit Breaker Type
Standard
Current Rating
30 A
Mounting Type
Plug-In Mount
Product Dimensions
3.5"D x 3.5"W

⚡2x 30A double pole breakers

📏Half-space quadplex design

🔌Plug-in mounting for easy install

€ 90.44

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Description

⚡ Power Up Smart: Double Capacity, Zero Compromise!

WARRANTY BACKED AUTHENTICITY - Use Siemens breakers exclusively to keep your panel warranty intact—no risky used breakers allowed.
SEAMLESS PLUG IN INSTALLATION - Effortless plug-in mounting ensures quick upgrades and maintenance, saving you valuable time and hassle.
PERFECT FIT FOR SIEMENS PANELS - Specifically engineered for Siemens EQ, Ultimate, ITE, and Gould load centers, ensuring flawless compatibility.
DOUBLE THE POWER HALF THE SPACE - Two 30-Amp double pole breakers packed into a compact quadplex 1/2-inch frame, maximizing panel capacity without compromise.
UL LISTED FOR SAFETY RELIABILITY - Certified UL listing guarantees top-tier safety standards and peace of mind for your electrical system.

The Siemens Q23030CT2 is a UL-listed, plug-in type circuit breaker featuring two 30-Amp double pole breakers in a space-saving quadplex 1/2-inch frame. Designed exclusively for Siemens EQ, Ultimate, ITE, and Gould load centers, it maximizes panel capacity while maintaining warranty compliance and safety standards.

Specifications

ASIN	B000SKY58A
Best Sellers Rank	#73,391 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #34 in Thermal-Magnetic Circuit Breakers
Brand Name	SIEMENS
Circuit Breaker Type	Standard
Current Rating	30 A
Customer Reviews	4.5 4.5 out of 5 stars (434)
Global Trade Identification Number	00783643083943
Item Dimensions D x W x H	3.5"D x 3.5"W x 12.8"H
Item Weight	8 ounces
Manufacturer	Siemens
Model	Q23030CT2
Mounting Type	Plug-In Mount
Number of Items	1
Number of Poles	2
Part Number	Q23030CT2
UPC	783643083943
Unit Count	1 Count
Voltage	240 volts
Warranty Description	Siemens strongly recommends against the use of "used" breakers.

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TrustScore 4.5 | 7,300+ reviews

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€ 90.44

Duties & taxes included

In stock

Sold byAmazon FranceDelivered 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 France.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Received my product in pristine condition. Great service overall.

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