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Professional circuit breaker manufacturer
  • Possess a production workshop of over 1,000 square meters
  • A young technical team of more than 30 people, including 6 senior engineers
  • Possess a national-level laboratory

AC Adjustable Current MCCB

Alternating Current Molded Case Circuit Breakers (AC MCCBs) with adjustable current ratings from 16A to 1600A, available in 3-pole and 4-pole configurations with electromagnetic trip units.

ltem Our Offer
MOQ 1000 pcs
Sample Free sample can be provided for bulk order
Leading Times Sample 1-3 days;Bulk Order:30-60working days.depending on the qtys
Main Product Safe and reliable molded case circuit breaker with intelligent design and built-in multiple function options
Customize  Logo Accept
Warranty 1 year

NUOMAK in Brief

  • 3000m² factory area in Wenzhou
  • 16 production lines to ensure a short turnover time
  • 13 years ofMolded case circuit breaker and distribution panel OEM experience
  • 120 front-line employees in Nuomak
  • 3000 0EM projects completed
  • Export to 42 countries worldwide

AC Adjustable Current MCCB 32A 63A 125A 3 Pole

AC Adjustable Current MCCB 250A 200A 125A 3P

AC Adjustable Current MCCB 400A 300A 3P 4P

AC Adjustable Current MCCB 400A 500A 630A 3 Pole

AC Adjustable Current MCCB 700A 800A 3P 4P

AC Adjustable Current MCCB 800A 1000A 3P

AC Adjustable Current MCCB 1000A 1250A 3 Phase

AC Adjustable Current MCCB 1500A 1600A 3 Pole

Warehouse-1

Warehouse-2

Warehouse-3

Warehouse-4

Warehouse-5

Warehouse-6

Parts Warehouse MCCB-1

Parts Warehouse MCCB-2

Parts Warehouse MCCB-3

Parts Warehouse MCCB-4

Parts Warehouse MCCB-5

Production workshop MCCB-1

Production workshop MCCB-2

Production workshop MCCB-3

Production workshop MCCB-4

Production workshop MCCB-5

Mould-workshop

Plastic workshop-1

Plastic-workshop-2

Plastic workshop-3

Stamping parts in a corner of the workshop

Factory-1

Factory-2

Factory-3

Products Manufacturer FAQ

Yes, our MCCBs are fully compliant with international standards and designed for long-term regulatory adaptability. Here’s how we ensure seamless market access and ongoing

Yes, we provide end-to-end customization and a scalable partnership framework to grow with your business.

Yes.

Our prices are competitive, and long-term use is indeed more cost-effective.

Our supply chain is highly stable and can ensure the progress of your project.

We have a professional team and processes to respond quickly and resolve issues, typically within a few hours for most problems. Our goal is to minimize the impact on your business.

How to adjust trip current of MCCB?

Generally, this is set at 1.5-10 times the MCCB Ir setting current or the setting for trip unit amperage. As an example, you may adjust a 600A MCCB to trip at between 1200 amps and 6000 amps.

How to adjust trip current of MCCB?

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