300A DC Circuit Breaker, 3 Pole

5 out of 5 based on 1 reviews | Write a review

$255.92

Lower price 300A DC circuit breaker with 20 ms total break time for sale online. Working temperature of smart circuit breaker between -25℃ and 50 ℃. PV DC circuit breaker is commonly used in power transfer switch, overload protection device and control appliance.

Number of Poles *

SKU: ATO-DCCB-300A

Qty:

30-day Returns

Free Shipping

Delivery date: 6-12 days

Overview
Related Video

3 pole circuit breaker is available for installation in standard busbars. DC circuit breaker has overload long delay protection and short-circuit instantaneous protection functions.

Features

Extremely high breaking capacity and current limiting characteristics.
Available for installation in standard busbars.
Dual function terminals on top and bottom sides (lifting type / open type).
Optionally fixed to the bus bar on the top or bottom side.
With isolation function, can be used as the main switch.
Wiring terminal guidance to prevent mis-wiring.

Specifications

Electrical Parameter	Model	ATO-FXBN1/BM1-300A
	Current	300A
	Rated Voltage	DC 750V
	Current Shell Frame	400A
	Numbers of Pole	3 pole
	Breaking Capacity	25 KA
	Rated Insulation Voltage	1000V
	Rated Impulse Withstand Voltage	8 kV
	Total Break Time	20 ms
	Installation Location	any location
	Allowable Ambient Temperature	-25 ℃ ~ 50 ℃
	Protection Level	IP20
	Flying Arc Distance	≥50 mm
	Instantaneous Action Valve	12 ln
	Installation Method	fixed, insertion type
	Standard	IEC60947-2x IEC60947-K GB14048.R GB14048.2
Machinery Parameter	Mounting Method	IEC standard track 35 mm
	Enclosure Protection Level	IP20
	Dual Function Terminals on Both Sides	open type / lifting type
	Terminal Protection	finger touch and hand touch safety
	Terminal Wiring Capacity	1-25 mm²
	Termianal Screw Tightening Torque	2-2.4 Nm
	Bus Bar Thickness	0.8-2 mm
	Mounting Angle	functionaity is independent of location

Dimension (Unit: mm)

300A 3P/4P DC circuit breaker dimension

Note: If you need copper busbar parts, please contact us.

Wiring Diagram

3 pole DC circuit breaker wiring diagram

Details

Tips: The Importance of DC Circuit Breaker For Solar Photovoltaic Panel

DC circuit breaker is critical in solar photovoltaic panel system. Circuit for solar panel is a pricey component of the system. As a result, it is vital to safeguard them using a DC circuit breaker. You can connect the solar pv system panels' circuits to a combiner box. The DC circuit breaker also protects the circuits and boards.

How to Choose a DC Circuit Breaker?

In the video, key considerations will be explored to help you choose the most appropriate DC circuit breaker for your application, ensuring the safety and efficiency of your electrical system.

Types of Circuit Breakers

In this video, we'll take a closer look at the meaning behind these abbreviations and explain the types of circuit breakers they represent. By understanding the different types of circuit breakers on the market, you can make an informed decision and choose the right type for your specific requirements, thereby enhancing the protection of your electrical infrastructure.

Existing reviews of 300A DC Circuit Breaker, 3 Pole

Use in my kitchen

I bought to install a dedicated circuit for my welder, power tools since my only amp breakers are in the kitchen. This 300A DC circuit breaker works as it should, and I am happily running my welder without tripping breakers.

From: Matte | Date: 13/12/2022

Was this review helpful? Yes No (0/0)

Load more reviews...

Write your review for 300A DC Circuit Breaker, 3 Pole