Autonomous Innovation
KNB2-63DC

Korlen DC Breakers KNB2-63DC 6A-63A DC MCB Mini Circuit Breakers

Korlen circuit breakers are widely used in residential, commercial and industrial power distribution systems and are known for their high reliability and safety. The product adopts advanced research and development technology to ensure that the circuit is quickly cut off in the case of overload and short circuit, and protect the electrical equipment. The production line uses automated equipment, and the annual output reaches millions of units, and the inventory is sufficient to meet the global market demand.

Highlights

  • Sophisticated manufacturing processes provide durable circuit protection
  • Advanced overload and short circuit protection technology, fast response
  • Meets international energy efficiency standards, low power design, reduces energy waste
  • Supports fast installation and replacement Save time and labor costs
  • Suitable for various power systems, residential, commercial and industrial fields
  • Pass CE, RoHS and other international certifications

Product Details

Application

KNB2-63 S6Z circuit-breakers are used in communication systems and PV DC systems.KNB2-63 series Miniature Circuit Breaker is nice    in appearance, reasonable in structure, sound in feature and high in breaking capacity.Installed with standard din rail, it is convenient and easy in usage. It is rated working voltage to 250/500/1000V, and rated current to 63A as protection against short-circuit. It can be used as infrequent on-and-off operation and changeover.It complies with standard of IEC/EN60947-2 .

 

Basic specification and mainparameters

Frame class 63A
Rated working voltage 250/500/1000V
Rated working current 1, 2, 3, 4, 6, 10, 13, 16, 20, 25, 32, 40, 50, 63A
Making and breaking capacity 6000kA/10000kA/15000kA
Poles 1, 2,3, 4P
Mechanical life 20000
Electric life 1500

 

The over-current tripping unit protection feature

Sequence Test current I/In Start state Tripping time Expected result
1 1.13In Cold state t≤1h Not tripping
2 1.45In Start right after NO .  1 test t<1h Tripping
3 2.55In Cold state t≤0.1s Not tripping
4 5In Cold state t<0.1s Tripping

 

 

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