Miniature Circuit Breaker DPN 6KA

CDADA DAB7N Miniature Circuit Breaker DPN 6KA is a professional 1P+N dual-break miniature circuit breaker independently developed by Shanghai DADA Electric, a reliable manufacturer with 40+ years of experience. With 6kA high breaking capacity, synchronous operation, and N-pole “make first, break later” design, it effectively improves arc extinguishing performance and protects circuits and equipment safely. Widely used in distribution boxes, home decoration, commercial power, and lighting circuits, it is the first choice for global buyers, distributors and OEM customers.

What Are the Advantages of MCB DPN 6KA?

★ 1P+N DPN structure, dual break points, safer and more reliable

★ N pole makes first and breaks later, enhances arc breaking capacity

★ 6kA real breaking capacity, strong short-circuit protection

★ Compact 17.8mm width, saves cabinet space

★ B/C tripping curves available for different loads

★ IP20 protection grade, safe to touch

★ Wide wiring range: 1–25mm² flexible cable

★ DIN rail mounting, fast and stable installation

★ High and low temperature resistance: -25℃~+50℃

★ Long mechanical life up to 20,000 times

Applications

CDADA Miniature Circuit Breaker DPN 6KA is widely used in:

★ Residential buildings, apartments, villas, home decoration

★ Offices, shops, hotels, schools, hospitals

★ Lighting circuits, power sockets, small power equipment

★ Household appliances: water heaters, air conditioners, electric heaters

★ Old circuit reconstruction and distribution box upgrading

★ Commercial and civil low-voltage power distribution systems

Technical Parameters Table

Outline Dimensions

★ Length: 82.5mm

★ Height: 73.2mm

★ Width: 17.8mm (standard 1-module width)

★ Mounting: 35mm DIN rail

★ Wiring: suitable for 1–25mm² flexible/rigid cable

★ Busbar thickness: 0.8–2mm

Standard Testing Items

★ 1.13In non-tripping test (≥1 hour)

★ 1.45In tripping test (<1 hour)

★ 2.55In overload action test

★ Magnetic instantaneous tripping test (3In/5In for B/C curve)

★ Dielectric withstand voltage test

★ Temperature rise test

★ Short-circuit breaking capacity test (6kA)

★ Mechanical & electrical life test

★ High & low temperature operation test

Tripping Characteristic Curves

IEC 60898-1

Magnetic Release

When a circuit short circuit occurs, instantaneous tripping is achieved by a magnet with an iron core. According to the IEC60898 standard, this product can be divided into three types: B, C, and D.

Thermal Release

●Once overload occurs in the circuit, the bimetallic strip of the circuit breaker will bend due to heat, causing the contacts to disconnect and resulting in thermal tripping;

●The IEC standard defines the tripping time range for different overload currents;

●The reference test environment temperature is 30 °C.

Quality Control Process

1. Raw material incoming inspection & certification verification

2. Automatic injection molding & precision metal stamping

3. Semi-finished product assembly & calibration

4. 100% full tripping characteristic test

5. Withstand voltage & insulation performance test

6. High and low temperature aging test

7. Appearance, dimension & logo inspection

8. Final packaging & shipment inspection

Packaging & Shipping

★ Standard export carton with shockproof lining

★ Group box packaged to avoid scratch

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

★ Suitable for sea, air and land transportation

★ Support OEM packaging, custom logo and label

Customer Success Cases

CDADA MCB DPN 6KA has been exported to more than 50 countries and regions:

★ Long-term bulk supply for European and Asian distributors

★ Household circuit renovation projects in Middle East & Africa

★ OEM cooperation with well-known international electrical brands

★ Power distribution supporting for real estate developers

★ Stable orders from electrical contractors and system integrators

Why Choose DADA Electric?

★ 40+ years of professional experience in circuit breaker R&D and production

★ 90% core components produced in-house, stable quality control

★ ISO9001 certified, full compliance with international standards

★ Complete certifications: CE, CB, CCC, etc.

★ Large production capacity, fast delivery for bulk orders

★ Professional technical support and after-sales service

★ Accept OEM & ODM customization to meet market demands

★ Global logistics system, safe and punctual delivery