High Quality MCB NXB-63 1P 2P 3P 4P AC 230/400V 1A-125A Circuit Breaker DIN Rail Mounting Miniature Household Air Switch
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Product details
| Model Number | NXB-63 |
|---|---|
| Voltage | AC 230/400V |
| Brand Name | CHNT |
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1. Compliant standards
IEC60898-1
2. Major function
Overload protection, short circuit protection, positive isolation
3. Technical parameters
Rated current: 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A; Rated voltage: 230V (1P, 1P+N), 230/400V (2 ~ 4P, 3P+N); Frequency: 50; Electromagnetic release type: C Number of poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P; Mechanical life: 20000 cycles; Electrical life: 10000 cycles; Rated short-circuit breaking capacity(Icn): 6000A; Short-circuit breaking capacity (Ics): 6000A; Rated impulse withstand voltage (Uimp): 4kV; Power consumption on each pole of the circuit breaker: see Table 1.
Table 1
Rated current In (A) Maximum power consumption per pole (W)
1~10 3
16 3.5
20~25 4
32 6
40 7.5
50 9
63 13
4. Dimensions and installation sizes
Strong adaptability to environment and reliable operation in harsh environment
-30℃~70℃ ambient temperature range, to meet the needs of various applications
Contact indicator window, clear position
All models of contact head position visualization, avoid wrong operation, use more reliable
Circuit breaker and leakage protection choose
1.The main switch of the household distribution box is usually a 32A-63A mini circuit breaker or leakage protection circuit breaker which can disconnect the phase line and neutral line at the same time 2.10A-16A miniature circuit breaker is generally selected for lighting circuit 3.Socket circuit generally selects 16A-20A leakage protection circuit breaker
Switch current is selected according to equipment power
1.Calculation formula = power/voltage *3 (impact current) 2.For example: 3000W equipment 380V voltage select circuit breaker, 3000W*3 (impulse current) /380V≈ 23.68A ≈25A, we choose 25A circuit breaker or leakage circuit breaker
How to choose the type C and type D electromagnetic trip
The long delay action range of type C is 5in-10in; The long delay action range of type D is 10in-12in.(In is the rated current of the switch) Type C is used in light load areas such as distribution control and lighting.Type D can be used in heavy load starting places, such as motor starting, can avoid the equipment after starting the instantaneous current is too large to cause unnecessary overload switch trip.
Can't shut down
1.Whether the load port is short circuited 2.Operating mechanism failure 3.The rated current of the circuit breaker does not match the load current
High temperature
1.The wiring screw is loose without tightening the wire 2.The chosen wire section area is too small, the wire is too thin
Not disconnected in short circuit
1.The selected circuit breaker does not match the working conditions of the load
No electricity
1.Too little lead head stripping 2.The wiring screw is loose without tightening the wire
If you have any other questions, please contactcustomer service or leave a message
All Chint products have passed 3C certification
3C certification is mainly trying to pass a package of solutions such as "unified catalog, unified standards, technical regulations, conformity assessment procedures, unified certification marks, and unified charging standards" to completely solve the long-standing Chinese product certification system. Review, repeated charges, and the issue of the indiscriminateness of certification and law enforcement, and establishing technical regulations, standards and conformity assessment procedures consistent with international rules can promote trade facilitation and liberalization.
3C certification is short for China Compulsory Product Certification. The main content can be summarized as follows:
(1) In accordance with relevant WTO agreements and internationally accepted rules, the state implements a unified compulsory product certification system for products related to human health and safety, animal and plant life safety and health, environmental protection and public safety in accordance with the law. The National Certification and Accreditation Administration Commission is responsible for the management and organization of the national compulsory product certification system.
(2) The main feature of the national compulsory product certification system is that the state publishes a unified catalog, determines uniformly applicable national standards, technical rules, and implementation procedures, formulates unified logos, and stipulates unified charging standards. All products listed in the compulsory product certification catalog must be certified by the nationally designated certification body, and only after obtaining the relevant certificate and applying the certification mark, can they leave the factory, import, sell and use in business and service places.
(3) According to China's WTO commitments and the principle of embodying national treatment, the original two systems covered 138 products. The "Catalogue" released this time deleted the medical ultrasound diagnostic and treatment equipment that were originally included in the mandatory certification management. 16 kinds of products, 10 kinds of products including safety glass for construction have been added, and there are 132 kinds of compulsory certification products actually included in the Catalog.
(4) The state uses a uniform mark for compulsory product certification. The name of the new national compulsory certification mark is "China Compulsory Certification", the English name is "China Compulsory Certification", and the English abbreviation can be referred to as the "3C" mark. After the implementation of China's compulsory certification mark, it will replace the original "Great Wall" mark and "CCIB" mark.
(5) The state uniformly determines the charging items and standards for compulsory product certification. The formulation of new charging items and charging standards will be based on the principle of non-profit-making and reflecting national treatment, comprehensively considering the current charging situation, and referring to similar overseas certification charging items and charging standards.
| Category | DIY, Tools & Hardware › Tools & Equipment › Electrical & Power |
|---|---|
| Availability | In stock |
| Ships to | Canada |
| Buyer Guarantees | 15-Day No Update Refund & 60-Day No Delivery Refund |
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