125 15KA Miniature Circuit Breaker

CDADA DAB7-125 125 15KA Miniature Circuit Breaker is a heavy-duty high-breaking miniature circuit breaker independently developed by Shanghai DADA Electric. With 10kA/15kA ultra-high breaking capacity, 125A large rated current, and 27mm (1.5M) compact width, it can replace traditional molded case circuit breakers for heavy-current protection.

Adopting dual arc chamber, silvered contacts, and PA66 flame-retardant material, it provides safe and stable overload, short-circuit, and isolation protection for industrial, commercial, and residential high-power circuits.

Product Functions

★ Overload protection

★ Short-circuit protection

★ Safe circuit isolation

★ Manual on/off control

★ Stable large-current transmission

Key Product Advantages

★ 15kA ultra-high breaking capacity, replaces MCCB for heavy-duty use

★ Dual arc chamber, arc extinguishing speed increased by 30%

★ Silvered spring contacts, low heat loss, longer service life

★ PA66 flame-retardant shell, self-extinguishing, high temperature resistance

★ Dual power contact structure, stronger short-circuit withstand

★ Notched terminals, higher mechanical stability and wiring firmness

★ Industrial-grade metal mechanism, strong impact resistance

★ 27mm narrow width, saves distribution cabinet space

★ 1P/2P/3P/4P complete poles, wide current range up to 125A

★ Supports copper & aluminum wire connection

Applications & Using Scenarios

★ CDADA 125 15KA Miniature Circuit Breaker is widely used in:

★ Industrial factories, workshops, and large equipment power supply

★ Commercial buildings, shopping malls, hotels, and office buildings

★ Residential villas, high-rise buildings, and main incoming circuits

★ Power distribution cabinets, box-type substations, and final distribution systems

★ Large-power pumps, fans, compressors, and motor circuits

★ Infrastructure, construction, and renovation projects

Technical Parameters Table

Outline Dimensions

★ Width: 27mm (1P), 54mm (2P), 81mm (3P), 108mm (4P)

★ Height: 90mm

★ Length: 75.5mm

★ Mounting: Standard 35mm DIN rail

★ Suitable for conventional low-voltage distribution boxes

Standard Testing Items

★ 1.13In non-tripping test (≥1h)

★ 1.45In tripping test (<1h)

★ 2.55In overload action test

★ Magnetic instantaneous tripping test

★ Temperature rise test

★ Dielectric withstand voltage test

★ 10kA/15kA short-circuit breaking test

★ Mechanical & electrical life test

★ High & low temperature operation test

Quality Control

Test Process

★ 1. Raw material incoming inspection

★ 2. Automatic stamping & injection molding

★ 3. Precision assembly & semi-finished test

★ 4. 100% full tripping calibration

★ 5. Withstand voltage & insulation test

★ 6. Short-circuit breaking capacity verification

★ 7. Appearance & dimension inspection

★ 8. Finished product aging & final test

Testing Equipment

★ Automatic tripping calibration system

★ Short-circuit testing platform

★ Temperature rise test chamber

★ Withstand voltage tester

★ Life-cycle testing machine

★ High & low temperature environmental chamber

Certifications

CE, CB, IEC60898-1, ISO9001, CCC, ROHS

Packaging & Shipping

★ Standard export carton + shockproof inner lining

★ Group packaging for each product

★ Clear label: model, current, poles, quantity, certification

★ Suitable for sea, air, land transportation

★ Support OEM packaging & custom logo

Customer Applications & Success Cases

★ Industrial main circuit protection in Europe, Southeast Asia, Middle East

★ Large residential & commercial building incoming power projects

★ OEM cooperation with global electrical brands

★ Long-term bulk supply for international distributors

★ Power distribution for infrastructure projects in Africa & South America

★ High-current equipment supporting for factories and mines

CDADA Factory Strength

★ 40+ years professional R&D and manufacturing experience

★ 50,000 ㎡ modern production base

★ Full-automatic injection, stamping, welding, assembly lines

★ 90% core components produced in-house

★ Professional R&D team & quality control team

★ Monthly capacity over 5 million pieces

★ Complete mold development & customization ability

Why Choose CDADA?

★ Stable quality, 100% full inspection before shipment

★ Ultra-high cost-performance, replaces MCCB with lower cost

★ Fast delivery, large stock for standard models

★ Professional technical support & after-sales service

★ Accept OEM/ODM customization

★ Global certification, suitable for worldwide markets

★ Long-term cooperation with customers from 80+ countries

Customer Feedback

“CDADA 125 15KA Miniature Circuit Breaker is stable and reliable, perfect for our industrial main circuits. Breaking capacity is real 15kA, quality is as good as European brands. We have been cooperating for 5 years, delivery on time, service is excellent.”— Distributor