Gold Member Since 2011
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Yueqing Winston Electric Co., Ltd.

Dc Mcb, Dc Miniature Circuit Breaker, Dc Circuit Breaker manufacturer / supplier in China, offering Photovoltaic 1000V DC Mini Circuit Breaker for Solar System (L7-63), Vd01 Digital Voltage Detector Pen, LED Vd03 Voltage Detector Voltage Detector Pen Personal Voltage Detector and so on.

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Supplier Homepage Product AC Contactor and Circuit breaker Circuit breaker Photovoltaic 1000V DC Mini Circuit Breaker for Solar System (L7-63)

Photovoltaic 1000V DC Mini Circuit Breaker for Solar System (L7-63)

FOB Price: Get Latest Price
Min. Order: 100 Pieces
Production Capacity: 50000PCS/Week
Transport Package: Export Standard Carton Box or ODM
Payment Terms: L/C, T/T, Paypal, Money Gram, Western Union

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Basic Info
  • Model NO.: L7 (6-63A)
  • Operation: Manual Type
  • Arc-extinguishing Medium: Air
  • Structure: MCB
  • Certification: CE
  • Specification: CE
  • HS Code: 85362000
  • Breaking Capacity: Low Voltage Circuit Breakers
  • Speed: Normal Type Circuit Breaker
  • Installation: DIN Rail
  • Poles Number: 1p 2p 3p 4p
  • Trademark: Winston/OEM/Neutral
  • Origin: China, Zhejiang, Wenzhou
Product Description
1. Application:

L7-63 Series DC Miniature Circuit Breaker, apply to rating current 63A or less, Direct current rating voltage 250V and 440V. It is mainly used for the overloading and short circuit protection in DC distribution system equipment and electric equipment. It can be widely used in electric, post, traffic, mining enterprise and different kinds of fields. In present China, our products in the case grade rating voltage is highest compared to the same products.
Products according IEC60947, GB14048.2, IEC60898.2 standard.

2. Characteristic

L7-63 DC circuit breaker is made up of case, operation mechanism, thermal overloading trip, electromagnetic trip contact system, arc system etc. It has overloading and short circuit protection, unique-design structure and strong permanent magnetism arc system make the product has 6KA short circuit capability. Long mechanical life over 20000 times and beautiful shape. It can be connected with DIN rail named TH35-7.5 standard stainless type and has the below personality: The handle is designed on the top of the front, people will feel safe and comfortable when operating. When connecting, pay attention to "+, -" poles; The power goes in from the top and comes out from the underside which is applied with power entrance character. Convenient for installation and saving cables. It is used for 440V circuit 3 poles circuit breaker to connect front loop for two poles serial connection
Crust Grade Rating Current Imm(A) Pole Rating Voltage (V) Rating Current In(A) Rated limit short circuit capability Instantaneous trip
Breaking Current Icu(A) Time(ms)
63A 1 DC125V 1, 2, 3, 4, 5, 6, 10, 15, 16, 20, 25, 32, 40, 50, 63 6000 10 C, D
2 DC250V/440V
3 DC550V/800V
 4  DC1000V
Test Type Test Current Original State The tripping type does not release the time limit Result Remark
A C, D 1.13In Cold State T≥1h (In≤63A) No trip  
B C, D 1.45In Following A Test T<1h (In≤63A) Trip Current up steadily in 5
C C 8In Cold State T≥0.1s No trip Shut auxiliary switch and connect the power
12In T<0.1s Trip
D D 10In Cold State T≥0.1s No trip
14In T<0.1s Trip

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