Smart Digital Display Air Circuit Breaker with Communication Features

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: Universal Circuit Breaker
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection
• Certification: ISO9001-2000, CE
• Transport Package: Export Standard Wooden Case
• Specification: 44*42*56CM
• Trademark: shengxian
• Origin: Zhejiang, China
• HS Code: 853620000
• Production Capacity: 500 Pieces/Week
• Package Size: 500.00cm * 500.00cm * 800.00cm
• Package Gross Weight: 30.000kg

Product Description

Product Description

12kV-40.5kV Indoor

Indoor high voltage air circuit breakers is designed for 12kV to 40.5kV three-phase AC distribution systems, widely applied in industrial plants, substations, mining operations, and commercial complexes for power control and protection. Featuring maintenance-free vacuum interruption technology at its core, combined with high mechanical endurance and eco-friendly characteristics, it serves as a proven replacement solution for traditional oil circuit breakers and SF6 equipment. 

Installation environment meets the following conditions:

·Altitude: ≤ 1000m (high-altitude models available)
·Ambient Temperature: -15℃ ~ +40℃
·Relative Humidity: Daily avg. ≤ 95%, Monthly avg. ≤ 90%
·Installation: Indoor, free from fire, explosion, severe pollution, and intense vibration

Key Advantages:

·Maintenance-Free Vacuum Interruption: Sealed interrupter requires no servicing over its lifetime, zero SF6 emissions, fully compliant with global environmental standards.

·High Mechanical Endurance: Integrated spring mechanism delivers 10,000-20,000 operations, ideal for frequent switching applications.

·Compact Insulation Design: Epoxy resin composite poles for 40.5kV models, phase spacing as compact as 300mm, minimizing floor space.

·Comprehensive Interlocking: Dual mechanical/electrical interlocks prevent maloperation and ensure operator safety.

Main Applications

·Industrial Plant Power Distribution Systems
·Substations and Switching Stations
·Mining and Heavy Industry Power Control
·Commercial Complexes and High-Rise Building Distribution Rooms
·Power Plant Auxiliary Power Systems

Specification

Item		Units	Value
Rated Voltage		kV	12
Rated Frequency		Hz	50
Rated Insulation Level	1 Min Power Frequency withstand Voltage	kA	To ground/ Interphase: 42/48
	Lightning Impulse withstand Voltage (Peak)		To ground/ Interphase: 75/85
Rated Short Circuit Breaking Current		kA	20	25	31.5		40
Rated Current		A	630	630	1250	1600	1250	1600
			1250	1250	2000	2500	2000	2500
Rated Short-time withstand Current		kA	20	25	31.5		40
Rated Peak withstand Voltage			50	63	80		100
Rated Short Circuit Closing Current			50	63	80		100
Rated Duration for Short Circuit Current		S	4
Mechanical Life		Times	20000
Power Frequency withstand Voltage of the Second Loop (1 min)		V	2000
Rated Operation Sequence			0-0.3s-Co-180s-Co

Detailed Photos

Customized Solution

For detailed drawings, type-test reports, or specific model quotations, please click "Send Inquiry" or contact us directly via the information on the right. Our engineering team will provide one-on-one selection support tailored to your project requirements.

FAQ

Q1. Are you a trading company or manufacturer?
A: We are a seasoned factory with a decade of expertise in High and Low voltage switchgears, substations, transformers, cable distribution boxes, and diverse electrical equipment like vacuum circuit breakers and load break switches.
Our factory is a preferred supplier for the State Grid Corporation of China.
 
Q2. Do you accept customized service?
A: We offer OEM/ODM services, including logo printing. Our expert technical and quotation team can deliver a tailored project based on your drawings and specifications.
 
Q3. What is your MOQ?
A: Our Minimum Order Quantity is 1 piece.
 
Q4. How long is your delivery lead time?
A: Lead time varies based on product needs and quantity. Generally, 5 to 10 working days.
 
Q5. How do you solve quality problems?
A: Please provide detailed photos of the quality issue. Our technical and quality departments will analyze and provide an effective solution within 2 days.
 
Q6. What are your payment terms?
A: 30%T/T upfront, 70% before shipment. West Union and L/C are also accepted.