KYB2DCT-125 series DC miniature circuit breaker have rated working voltage up to 1000V, mainly suitable for overload and short circuit protection of DC power distribution system equipment and electrical equipment with rated current 125A and below, widely used in power, postal, transportation, mining enterprises and various fields, also can be used for infrequent on-off operation.In China, the shell current and rated short-circuit breaking capacity of our products are the highest in the same category. Conformity to IEC 60947-2
KYB2DCT-125 series DC miniature circuit breaker are high-performance DC miniature circuit breaker with a single-pole width of 27mm, rated current up to 125A, rated short-circuit breaking capacity up to 15kA, and various technical parameters leading in China.
1,Shell frame grade Current: 125A
2,Standards: IEC 60947-2
3,Rated Insulation voltage Ui: 1000V
4,Rated Impulse Withstand Voltage Uimp: 6kV
5,Rated current: 32A, 40A, 50A, 63A, 80A, 100A,125A
6,Rated voltage: DC250V(1P), 500V(2P), 800V(3P), 1000V(4P)
7,Electromagnetic trip characteristics: 10In±20%
8,Number of poles: 1P, 2P, 3P, 4P
9,Unipolar width: 27mm
10,Icu: 10kA (In≤100A), 15kA (In=125A)
11,Ics: 7.5kA (In≤100A), 10kA (In=125A)
12,Reference temperature: 30ºC
13,Utilization Categpry: A
14,Mechanical life: 20,000 Cycles
15,Electrical life: 2000 Cycles
Break up the instructions
The green sign in the inspection window indicates that the contact is in a disconnected position
Wiring capacity: 1.5~35mm² conductor
Wiring screw: M7, maximum ultimate torque: 3.5N.m
18,Protection level: IP20
19,Incoming line: incoming line can be up or down
20,Use category: A
|Rated current In(A)||Overload trip feature||Electromagnetic trip action current(A)|
|1.05In agreed non-trip time H (cold state)||1.30In agreed trip time H (hot state)|
Product patented technology
1, Innovative design
23 Innovative Patent designs, used for decades with practical experience.
2,Main and auxiliary double breakpoint contact mechanism
Improved the conductivity of the contact mechanism components, so that the rated current of the circuit breaker is up to 100A;At the same time, it can effectively suppress the arc energy when the short circuit is broken, making the breaker's breaking capacity up to 10kA.
3,Low resistance and strong excitation system
The design of the low resistance and strong excitation system ensures the high conductivity and strong excitation capacity of the electromagnetic system, which improves the rated current and breaking capacity of the circuit breaker.
4,Arc multichannel shunt system
The arc multi-channel shunt design solves the last barrier for the short-circuit arc to enter the arc extinguishing chamber from the arc running channel, the rapid entry of the arc into the interrupter can effectively suppress the arc energy during the short circuit breaking, it can ensure the grid to keep low load operation and reduce damage.
1, High Short-Circuit Breaking Capacity
It has a short-circuit breaking capacity of up to 10KA. Its excellent breaking capacity and current limiting ability can provide reliable circuit protection, which can cut off short-circuit fault current at an extremely fast speed, ensuring that the power grid maintains low load operation and reduces damage.
2,High rated current
Circuit breakers with a single pole width of 18mm have a rated current of 100A through various patented designs.This circuit breaker has the characteristics of small volume and large rated current, which makes it not only can be used as the circuit protection circuit breaker in the terminal distribution circuit, but also can replace the MCCB of the same specification in the branch circuit for the distribution protection circuit breaker.Using this circuit breaker instead of MCCB can greatly reduce the volume of distribution box and save engineering cost.
3, Reliable connection
According to statistics, a large part of electrical fires are caused by loose wiring or loose heat. This circuit breakers use
tunnel-type terminal blocks, with a tunnel depth of ≥15mm, and the size of the locking screw is M7, which can withstand a
tightening torque equal to twice the national standard torque, which can connect the wires more reliably and securely, reducing fire hazards .
The indication window of this circuit breaker can reliably indicate the position of the moving contact. When the indication window is green, the moving contact of the circuit breaker is in the scoring position. After the opening, the electrical gap between the circuit breaker's inlet and outlet terminals meets IEC60947- 2 standard requirements, with isolation function.
Shipping can delivery by sea,air,or express according to customer requirement
1. Small order under 3000USD T/T100% in advance
2. 30% deposit and 70% before shipping or after received copy of B/L
3. L/C also acceptable
We provide 1 year warranty.
Founded in 2018, Xiamen Guoyan Technology Co., Ltd. is located in the Torch High-tech Zone (Xiang 'an) industrial zone in Xiamen.Since its establishment, the company has been focusing on the innovation and upgrading of the voltage electrical industry, committed to the research and development, manufacturing and sales of low-voltage distribution electrical appliances and terminal distribution electrical products, to provide customers with high-quality, reliable and safe low-voltage electrical products.The company independent research and development of KYB1-100 series and KYB2-125 high performance miniature circuit breaker series products, KYB3-63 series of cost-effective miniature circuit breaker, KYM1 series molded case circuit breaker, KYM1L series residual current circuit breaker and other related with electric products have reliable performance, good quality, security and stability of obvious advantages, such as has been widely used in industrial control equipment, dc construction, charging pile, data center and dc power supply system such as smart home state grid intelligent control terminal, mobile communications and other industries. The company has passed the ISO9001 system certification, has the whole chain, the whole life cycle quality control system, firmly establishes the quality is the first life force and the customer quality supreme principle. Company attaches great importance to product development and innovation, has brought together a product by senior experts, experts in the field of industrial control, such as dc power supply, electrical, mechanical, circuit boards, simulation, process manufacturing technical team of experts, with a number of industrial enterprises, new energy companies and research institutions established long-term relations of cooperation, for the company's new product research and development and application of new technology and provide reliable guarantee.Company has launched the breaker advocate complementary more breakpoints, multi-channel shunt arc, contact for technology and multi loop excitation system technology major innovations such as the new scheme, the application of these innovative technology makes the circuit breaker rated current, short circuit breaking capacity, temperature performance, electrical life and other important performance improved dramatically.The company holds dozens of national patents that enable it to continuously provide customers with cost-effective products with independent intellectual property rights.
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