Mday AC Miniature Circuit Breakers 220V 400V Mcb 20a 32a 40a 63a Power Distribution Equipment
- · TYPE:
- Mini
- · Material:
- Plastic, Aluminium, Copper
- · Breaking Capacity:
- 6 kA
- · Application:
- Industrial, Electronic Equipment, Household, High Voltage Equipment,
- · Rated Frequency:
- 50/60 Hz
Product Description

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AC Miniature Circuit Breaker 1A to 63A 2P MCB Features/Benefits * Professional MCB manufacturer for 12 years * Direct Factory Price * ODM / OEM Available * Excellent performance at temperature extremes * Standard IEC/EN60947-2 * No.of poles:1P,2P,3P,4P |
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Main Technical Parameter
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Type
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MJC-63
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Pole
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1P
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2P、3P、4P
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Rated current (A)
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1, 2, 3, 4, 5, 6, 10, 16, 20, 25, 32, 40, 50, 63
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Rated voltage (V)
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230/240
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400/415
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Ambient temperature
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-5˚C~+40˚C
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Type of instantaneous release
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B, C, D
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Rated short circuit breaking capacity Icn(kA)
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4(6)
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Applicable Conducting Wire
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Rated current (A)
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1-6
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10
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16,20
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25
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32
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40,50
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63
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|
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Norminal cross section of wire (mm2)
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1
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1.5
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2.5
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4
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6
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10
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16
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The Over-Current Protection Property
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Ambient temperature
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Initial status
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Test current
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Test time
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Expected result
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Note
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|||
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30±2˚C
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Cold position
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1.13In
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t≥1h
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Non-release
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-
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|||
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Carried out immediately after previous test
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1.45In
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t<1h
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Release
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-
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||||
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Cold position
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2.55In
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1s<t<60s(In≤32A)
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Release
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Current smoothly rises to specified value within 5s
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Cold position
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2.55In
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1s<t<120s(In>32A)
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Release
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|||||
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-5~+40˚C
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Cold position
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3In
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t≥0.1s
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Non-release
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Type B
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|||
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Cold position
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5In
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t<0.1s
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Release
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Type B
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||||
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Cold position
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5In
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t≥0.1s
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Non-release
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Type C
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Cold position
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10In
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t<0.1s
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Release
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Type C
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Cold position
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10In
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t≥0.1s
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Non-release
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Type D
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Cold position
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20In
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t<0.1s
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Release
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Type D
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Certifications

We are factory
Mday New Energy
is a trusted manufacturer of circuit breaker for photovoltaic systems across the globe. Our experience of working in the electrical industry for more than 12 years allows us to create solar DC mcb that comply with the latest DC standards. Through our focus on solar DC protection design, production, and marketing, we can bring brand-building PV protection solutions.

Independent production of accessories
All accessories of Mday are independently produced, including shell, copper parts and varistor chips.Therefore, the quality and production cycle of each dc breaker order can be fully guaranteed.
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| Injection Molding Workshop | Automated assembly line | Assembly | Automated assembly line |
Own test laboratory
The laboratory is managed by highly qualified professionals, engineers, scientists and experts in the miniature circuit breakers, who are governed by dedicated modern techniques of management.

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| Demonstration of Different Tests | Variable frequency vibration testing | Physical dimension testing |
Automatic Production Line
we have automatic production line, can control the production cycle and product quality of each batch of orders

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| 1.Automated assembly line | 2.Robot Arm | 3.Product Testing |
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| 4.Laser or Pad Printing | 5.Heat-Wrapping | 6.Packing |

FAQ
Q:Are you factory or trade company?
A:We are factory and can provide OEM,ODM with your demand.Plz confirm our factory video.
Q: when I can receive your quotation and detail information after send the enquiry?
A:All your enquiry will be replied in 24hours.
Q:What's your MCB rated current range?
A:Firstly, all raw material we selected the high quality one.
Secondly, our professional and skilful workers care every details in handling the producing.
Thirdly, our quality control department specially responsible for quality checking in each process.
Finally, our product strictly follow ISO9001 quality control system, all products must be tested after finished production.
Q: What’s the difference between DC MCB and AC MCB?
A: DC MCB function is the same as AC MCB. It’s difficult to interrupt and extinguish the arc in the DC circuit, so the
configuration of the accessories of the same product is much higher than that of the AC model type.
Q: How About the delivery term?
A: At present,we dont make enough stock for all models.
Plz confirm with salesman to get the accurate delivery term.

















