CNC Original AC Miniature Circuit Breaker Nb1-63AC MCB 1-63A 1p 2p 4p MCB
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Product Highlights
- Comprehensive Protection: Provides overload, short circuit, and overvoltage protection for residential and industrial use.
- Wide Current Range: Available in 12 rated current options from 1A to 63A for diverse application needs.
- Multiple Pole Options: Supports 1, 2, 3, or 4 poles to fit various circuit configurations.
- Standard Compliance: Meets IEC/EN 60898-1 standards with CE, CB, CCC, and ISO9001-2000 certifications.
- Flexible Release Types: Offers Type B, C, and D instantaneous release characteristics for different load types.
- Durable Performance: Features 20,000 mechanical life and 6,000 electrical life cycles for long-term reliability.
- Easy Installation: Mounts on standard 35mm DIN rail with top and bottom cable or busbar connections.
- OEM/ODM Support: Manufacturer offers OEM and ODM services with dedicated R&D engineers.
Product Attributes
- Customization
- Available
- Breaking Capacity
- Low Voltage Circuit Breakers
- Operation
- Electric Type
- Model NO.
- YCB7-63N
- Speed
- Normal Type Circuit Breaker
- Arc-extinguishing Medium
- Air
- Installation
- Fixed
- Structure
- MCB
- Poles Number
- 1, 2, 3, 4
- Type
- Circuit Breaker
- Function
- Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
- Certification
- ISO9001-2000, CE, CB, CCC
- Rated Current in
- 1, 2, 3, 4, 5, 6, 10, 16, 20, 25, 32, 40, 50, 63A
- Poles
- 1, 2, 3, 4
- Rated Voltage Ue
- 230/400V
- Rated Breaking Capacity
- 4500
- Terminal Connection Type
- Cable/Pin-Type Busbar
- Mechanical Life
- 20000
- Electrical Life
- 6000t
- Insulation Voltage Ui (V)
- 500
- Connection
- From Top and Bottom
- Transport Package
- Standard Packaging
- Specification
- YCB7-63N
- Trademark
- CNC/OEM
- Origin
- Zhejiang, China
- HS Code
- 8536200000
- Production Capacity
- 80000 Set/Sets Per Week
- Package Size
- 42.00cm * 26.50cm * 23.40cm
- Package Gross Weight
- 16.350kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of CNC Original AC Miniature Circuit Breaker Nb1-63AC MCB 1-63A 1p 2p 4p MCB
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Product Description
General



| Type | Standard | IEC/EN 60898-1 | |
| Electrical features |
Rated current In | A | 1,2,3,4,5,6,10,16,20,25,32,40,50,63 |
| Poles | P | 1,234 | |
| Rated voltage Ue | V | 230/400 | |
| Insulation voltage Ui | V | 500 | |
| Rated frequency | Hz | 50/60 | |
| Rated breaking capacity | A | 4500 | |
| Rated impulse withstand voltage(1.2/50)Uimp | V | 4000 | |
| Dielectric test voltage at ind. Freq. for 1min | kV | 2 | |
| Pollution degree | 2 | ||
| Thermo-magnetic release characteristic | B,C, D | ||
| Mechanical features |
Electrical life | t | 6000 |
| Mechanical life | t | 20000 | |
| Protection degree | IP20 | ||
| Reference temperature for setting of thermal eement |
ºC | 30 | |
| Ambient temperature (with daily averages35ºC) |
ºC | -5~+40 | |
| Storage temperature | ºC | -25~+70 | |
| Installation | Terminal connection type | Cable/Pin-type busbar | |
| Terminal size top / bottom for cable | mm² | 25 | |
| AWG | 18-3 | ||
| Terminal size top / bottom for busbar | mm² | 25 | |
| AWG | 18-3 | ||
| Tightening torque | N*m | 2 | |
| In-Ibs | 18 | ||
| Mounting | On DIN rail EN 60715(35mm)by means of fast DIP device | ||
| Connection | From top and bottom |


About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASI2531765". Items marked "" are certified.
Company Profile
CNC Electric is one of the leading manufacturer, specialized in manufacturing industrial electrical appliance, is a national large-scale enterprise integrated with R&D, manufacturing, trade and service, etc. CNC Electric was founded in 1988, which became a nationwide non-regional enterprise group in 1997. It mainly deals in high-low voltage electrical equipment, whole set, instrument and meters, explosion-proof appliances, building electrical appliances, power transformers, with more than 600 product series and 30, 000 specifications. Meanwhile, its commercial fields also cover real estate, investment, energy, logistics, information and other industries.
CNC Electric holds total assets with more than 5 billion RMB, and the plant area amounts to 0.25 million square meters, with over 10, 000 employees. CNC Electric now owns nine holding companies, over 60 member enterprises, 1, 000 cooperative units, 600 domestic sales companies and 9 exclusive distributors for oversea market.
CNC Electric has obtained three management system certificates, including ISO9001, ISO14001, OHSMS18001. Products have obtained CCC, CE, CB SEMKO certificate. The trademark "CNC" has won "Chinese well-known trademark" for years. CNC Electric also has won many other titles of honor as "National Inspection-free Product", "China Quality Faith and Consumer Trust Unit", "Advanced Unit in the National Brand Name Service", "National Model Enterprise of Quality and Integrity", etc.
CNC Electric attaches great importance to R&D and improvement. The provincial technical center has been set up. CNC Eelctric will keep on optimizing and upgrading the industrial structure with its active innovation thought of cooperation and development so as to provide customers with more perfectly overall solutions.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 146-148 Xinguang Avenue, Yueqing City, Wenzhou City, Zhejiang Province
-
Plant Area
- 24070 square meters
-
Number of Employees
- 275
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Ningbo Port
Our Production Capability & Technical Expertise
-
Main Products
- Circuit Breaker, AC Contactor, Starters, Relays, Instruments, Switches, Fuses, Transformer, Switch Gear
-
Production Machines
- Automatic Assembling \tFacility
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2018-05-08
- Export Year
- 2004-01-01
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia
-
Number of Foreign Trading Staff
- 38
-
Overseas Agent/Branch
- No
FAQ
- What are the available rated currents?
- The MCB is available in 12 options: 1, 2, 3, 4, 5, 6, 10, 16, 20, 25, 32, 40, 50, and 63A.
- What certifications does this circuit breaker have?
- It holds CE, CB, CCC, and ISO9001-2000 certifications and complies with IEC/EN 60898-1.
- Can I customize the product with my brand?
- Yes, OEM and ODM services are available as the manufacturer supports custom branding.
- What is the lead time for orders?
- The average lead time is one month, regardless of peak or off-peak seasons.
- What are the payment terms?
- We accept LC, T/T, PayPal, Western Union, and small-amount payments.
- What protection functions are included?
- It provides overload protection, short circuit protection, and overvoltage protection.
- How is the circuit breaker installed?
- It mounts on a standard 35mm DIN rail using a fast DIP device for easy installation.
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