EN60947-2 PA66 Din Rail Mount Circuit Breaker overload protection

Basic Information
Place of Origin: CHINA
Brand Name: NBSe/OEM
Certification: CE,CCC
Model Number: NBSB1-63
Minimum Order Quantity: 100pcs
Price: Negotiable
Packaging Details: 240pcs/ctn
Delivery Time: 10-20days
Payment Terms: Western Union, L/C, T/T
Supply Ability: 400,000pcs per month
Detail Information
Material: PA66 Fire-Proof, Copper, Silver Standard: IEC/EN60947-2
Pole Number: 2P Mcb Breaker Sizes: 1A-63A
Rated Frequency: 50/60Hz Mcb Breaker Types: B, C, D Type
Certificate: CE,CB,CCC,TUV,ROHS Circumstance Temperature: -5~+40
Rated Breaking Capacity: 3KA,4.5KA,6KA Mcb Breaker Price: Low Price From Manufacturer
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PA66 din rail mount circuit breaker


EN60947-2 din rail mount circuit breaker


PA66 din rail type circuit breaker

Product Description

Mcb Breaker Types Din Rail Mount Circuit Protection Device CE Certified,NBSB1-63-2P


Our Micro Circuit Breaker Main technical data

1. Rated current:1,2,3,4,6,10,16,20,25,32,40,50,63A;

2. Tripping characteristics:B(3-5)In,C(5-10)In,D(10-15)In;

3. No. of pole:1P,2P,3P,4P

4. Breaking capacity:4.5KA,6KA;

Providing functions of insulation switching, overload and short circuit protecting with high short-circuit capacity and Contact position indication. Moreover, provide indirect protection for the operator's body against the dangerous effects of electric current. Made by green earth meterial and special ABS plastic ,high in fire-resistance and strength. Easy mounting onto 35mm DIN rail.
Standard   IEC60898
Number of poles   1P,2P,3P,4P
Rated current(In)   6,10,16,20,25,32,40,50,63
Rated voltage(Un)   AC240/415V
Rated frequency   50/60Hz
Tripping curve   B,C,D
Release action characteristics Time delay 1.13In>1h Non-trip
1.45In<1h trip
2.55In 1s~60S trip
Instantaneous(Curve C) 5In >0.1s Non-trip
10In<0.1s trip
Magnetic releases operate   B curve:between 3 and 5In
C curve :between 5 and 10In
D curve: between 10 and 15In
Ratedbreaking capacit(Lcn)   6000A
Endurance   >2500
Circumstance temperature   -5~+40
Electrical life   >6000times
Mechanical life   20000 times
Tropical ration   Treatmen 2(RH95%,at 55°C)
Protection degree   IP20


  • Air temperature: use temperature -30℃~+60℃, storage temperature -40℃~+70℃.
  • Altitude: The altitude of the installation site does not exceed 2000 meters, and the altitude of more than 2000 meters should be derated for use.
  • Atmospheric conditions: The relative humidity of the air at the installation site does not exceed 50% at +40°C, and the average humidity of the wettest month does not exceed 90% at +20°C.
  • Installation category: The installation category is Ⅲ and Ⅲ. Pollution degree: Level 2. Installation method: Use TH35-7.5 standard rail installation.
  • Installation conditions: The inclination between the installation surface and the vertical surface should not exceed 5°, and the installation site should be free of significant impact and vibration.
  • Wiring method: Use screw compression connection to ensure fast and safe connection of conductors.

Mcb Breaker Types Din Rail Mount Circuit Protection Device CE Certified,NBSB1-63-2P

Packing Detail

1. Product Net weight: 100g/pole

2. Packing quantity& Weight: 12 pole /box, 20 box/carton, 240 pole/carton .

3. N.W: 23KG/carton

4. G.W:24KG/carton

5. Packing Measurement: inner box 22.5×9×8 cm, Carton 45×23.5×33.5 cm ( ie 0.036 cbm)

6. 20 foot container (26 cbm): 19,2000 pole ,800 cartons

7. 40 foot container (54 cbm): 38,4000 pole, 1600 cartons


The Over-Current Protection Property

EN60947-2 PA66  Din Rail Mount Circuit Breaker overload protection 0


MCB Selection&Mcb Breaker Price&Mcb Breaker Sizes$Mcb Breaker Types

 The first characteristic is the overload which is intended to prevent the accidental overloading of the cable in a no fault situation. The speed of the MCB tripping will vary with the degree of the overload. This is usually achieved by the use of a thermal device in the MCB.

 The second characteristic is the magnetic fault protection, which is intended to operate when the fault reaches a predetermined level and to trip the MCB within one tenth of a second. The level of this magnetic trip gives the MCB its type characteristic as follows:

Type Tripping Current Operating Time
Type B 3 To 5 time full load current 0.04 To 13 Sec
Type C 5 To 10 times full load current 0.04 To 5 Sec
Type D 10 To 20 times full load current 0.04 To 3 Sec


· The third characteristic is the short circuit protection, which is intended to protect against heavy faults maybe in thousands of amps caused by short circuit faults.

· The capability of the MCB to operate under these conditions gives its short circuit rating in Kilo amps (KA). In general for consumer units a 6KA fault level is adequate whereas for industrial boards 10KA fault capabilities or above may be required.


Company Introduction


The Company Is a Leading Supplier Of Electrical In China, founded in year of 1999, Specializing In LV Distribution & Motor Control,Inductrial Contros,Overvoltage protection, Switching devices and Other devices, Manufacturing, Operating And Marketing Into An Organic Whole. Some Our Main Hot Products Are As Miniature Circuit Breakers,Molded Case Circuit breakers,Residual Current Device, MCB,RCD,RCBO,MCCB,Surge Protector,Ac Contactors,Starter,Relay,etc.


Our Company Invests Large Fund And Brains To Research Products To Fit The Demand Of The Market. High Level Research Group, Advanced Apparatus And Good Scientific Atmosphere Ensure The Stable And Reliable Quality, Most Of Our Products Conform To The Requirements Of IEC,EN,GB,BS,It Is Mainly Sold To Electrical Company And Distribution Company In Abroad, Such as Uk,Brazil,Mexico, Russia,Benin,Netherlands, South Africa, Iran ,Turkey,Thailand,Indonesia, And So On.




Contact Details

Phone Number : +8613587466174

WhatsApp : +8613587466174