| MCB ALF | ||||||
| For protection of general power distribution (IEC/EN 60898-1) | ||||||
| Poles | 1P | 2P | 3P | 4P | ||
| Electrical performance | ||||||
| Functions | short circuit protection,overload protection,isolationg,control | |||||
| Rated frequency f Hz | 50-60Hz | |||||
| Rated working voltage Ue V AC | 230/400 | 400 | ||||
| Rated current In A | 6,10,16,20,25,32,40,50,63 | |||||
| Rated insulated voltage Ui V | 500 | |||||
| Impulse withstand voltage Uimp kV | 4 | |||||
| Instantaneous tripping type | ALF | B/C/D | ||||
| Rated short circuit Icn(kA) | ALF | 4.5 | ||||
| Release type | Thermal magnetic type | |||||
| Service life(O~C) | Mechanical | Actual value | 20000 | |||
| Standard value | 4000 | |||||
| Electrical | Actual value | 8000 | ||||
| Standard value | 4000 | |||||
| Connection and installation | ||||||
| Protectiom degree | IP20 | |||||
| Wire mm² | 1~35 | |||||
| Working temperature | -5 ～+40℃ | |||||
| Resistance to humidity and heat | Class 2 | |||||
| Altitude above sea | ≤2000 | |||||
| Relative humidity | +20℃ , ≤90% ;+40℃ , ≤50% | |||||
| Pollution degree | 2 | |||||
| Installation environment | Avoid obvious shock and vibration | |||||
| Installation class | Class Ⅱ , Class Ⅲ | |||||
| Mounting | DIN35 rail | |||||
| Combination with accessories | ||||||
| Auxiliary contact | Yes | |||||
| Alarm contact | Yes | |||||
| Shunt release | Yes | |||||
| Undervoltage release | Yes | |||||
| Auxiliary contact+Alarm contact | Yes | |||||
Dimensions(mm) (WxHxL)  |
a | 17.5 | 35 | 52.5 | 70 | |
| b | 80.2 | 80.2 | 80.2 | 80.2 | ||
| c | 76.5 | 76.5 | 76.5 | 76.5 | ||
Two types of short circuit protection.
Wide range of operating temperatures from –40 to +50° С.
Updated wider engagement lever with improved contact area.
Notches on terminal clamps provide for lowering thermal losses and boosting the mechanical stability of connection.
Circuit breakers are essential for protecting power systems from overloads and short circuits. Modern advancements, such as multi-chip current sharing and IoT integration, enhance their efficiency, safety, and reliability. Smart circuit breakers enable real-time monitoring and predictive maintenance, reducing downtime. Future trends focus on intelligence and sustainability, leveraging AI and eco-friendly designs. By adopting these […]
Today, the industry faces new challenges and opportunities, driven by technological advancements, globalization, and changing consumer demands.
Building automation started with simple mechanical controls and has evolved into sophisticated digital systems that integrate various technologies to enhance building performance and occupant comfort.
Circuit breakers are critical in rail transportation, ensuring the safety and reliability of electrical systems in trains and infrastructure. Modern circuit breakers feature advanced technologies like fast fault detection and IoT integration, enabling real-time monitoring and predictive maintenance. These innovations minimize downtime and enhance operational efficiency. Additionally, compact and durable designs are tailored to withstand […]
Server rooms are critical facilities that house computer servers, networking equipment, and data storage systems. They play a pivotal role in ensuring the smooth operation of IT infrastructure for businesses.
Drilling platforms are essential structures in the oil and gas industry, enabling the extraction of hydrocarbons from beneath the Earth's surface. These platforms can be fixed or floating and are designed to withstand harsh marine environments.
The mining industry involves the extraction of valuable minerals or other geological materials from the Earth. The industry plays a crucial role in providing raw materials for various sectors, including construction, manufacturing, and energy production. However, the mining industry faces several challenges
The development of mining equipment has been driven by the need to extract resources from increasingly difficult-to-reach locations and to process larger quantities of ore with greater efficiency.
0086-15167477792
charlotte.weng@cdada.com
No.171 Yezhuang Road, Zhuanghang, Fengxian, Shanghai, China
Download
