0045 Premium 4000A Air Circuit Breaker for Optimal Power Safety

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Energy-storage Type
• Model NO.: SJKW1-4000
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Draw out / Fixed
• Structure: ACB
• Poles Number: 3p/4p
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: ISO9001-2000, CE, CCC
• Rated Current: 4000A
• Ue(V): 400/415, 660/690
• Frequency: 50/60Hz
• Transport Package: Wooden Cases
• Trademark: JCHKO
• Origin: Zhejiang, China
• HS Code: 8536200000
• Production Capacity: 1000 Unit/Units Per Week

Product Description

Product Description

Premium 4000A Air Circuit Breaker for Reliable Power Protection

    The SJKW1 series intelligent universal circuit breaker (hereinafter referred to as the circuit breaker) is designed for use in distribution networks with an AC frequency of 50 Hz, a rated voltage up to 660 V (or 690 V), and a rated current ranging from 200 A to 6300 A. It is capable of distributing electrical energy while providing protection against faults such as overload, undervoltage, short circuit, and single-phase grounding. The circuit breaker features intelligent protection functions and precise selective protection capabilities, which enhance the reliability of power supply and prevent unnecessary power outages. Additionally, it is equipped with an open communication interface that supports "four remote" operations, thereby meeting the requirements of control centers and automation systems. The circuit breaker is suitable for installation at altitudes up to 2000 meters, with a pulse withstand voltage of 8000 V (adjusted according to the relevant standards for different altitudes, with the maximum value not exceeding 12000 V). In configurations without an intelligent controller or sensor, the circuit breaker can function as an isolator. 
    This product complies with international and national standards, including GB14048.2 "Low-voltage Switchgear and Controlgear - Low-Voltage Circuit Breakers" and IEC60947-2 "Low-Voltage Switchgear and Controlgear - Circuit Breakers."

Company Profile

FAQ

Could I have prices of your produets?

Welcome. Pls feel free to send us an email here.You will get our reply in 24 hours.

Can we print our logo/webiste/company name on products?
Yes, please advise the size and Pantone Code of the logo.
What's the lead time for regular order?
7-15 days for order quantity Iower than 1000pc;For more quantity,usualy 20 days.
Do you inspect the finished products?
Yes,each step of production and fnished products will be came out inspection by QC department before shipping.

Q: What are the key specifications of your air circuit breakers (ACBs)?

Q: What accessories are available for your frame circuit breakers?

Q: What types of trip units do you offer for your ACBs?

A: Our standard ACBs typically cover:

Rated Current (In): From 630A up to 6300A (Specify your range, e.g., 800A - 4000A).
Rated Operational Voltage (Ue): Up to 690V AC / 1000V AC (Specify).
Ultimate Breaking Capacity (Icu): Up to [e.g., 100kA, 150kA] at [Voltage, e.g., 415V] (Specify your highest and common ratings).
Rated Insulation Voltage (Ui): [e.g., 1000V].
Poles: 3-pole and 4-pole versions available.
Trip Units: Available with thermal-magnetic (TMD) or electronic (ETU/MIC) trip units for precise protection. (Mention key features of your ETUs, e.g., communication capability - Modbus, Profibus).
Standards: Compliant with IEC 60947-2, GB 14048.2, or other relevant standards.

A: A wide range of accessories are available to enhance functionality and safety, including:

Auxiliary contacts (NO/NC)
Undervoltage release (Shunt trip)
Closing coil (Electro-magnetic operator)
Mechanical interlocks (for multiple sources/couplings)
Padlocking devices
Extension shafts (for remote operation)
Communication modules
Key interlocks

A: We provide options to suit different needs:

Thermal-Magnetic Trip Unit (TMD): Cost-effective solution for basic overload and short-circuit protection.
Electronic Trip Unit (ETU/MIC): Offers advanced features like:

Adjustable long-time, short-time, instantaneous, and ground-fault protection settings.
Load monitoring and energy metering (on some models).
Communication capabilities (e.g., Modbus RTU, Profibus DP) for integration into SCADA/BMS systems.
Event logging and diagnostics.