Year1
- 额定电压：
- 380V
- 额定电流：
- 25A
- 产品认证：
- CCC
Compliant with the standards "Low-voltage switchgear and control equipment, Part Multi-function Electrical Appliances, Section Control and Protection Switching Appliances" and "Low-voltage Switchgear and Control Equipment, Multi-Function Electrical Appliances, Control and Protection Switching Appliances" (equivalent).
, Function
The series of products adopts a modular single product structure, integrating traditional circuit breakers (fuse contactors, overload (or overcurrent, phase failure) protection relays, starters, isolators , the main functions of low-voltage electrical products such as motor comprehensive protectors, with remote automatic control and local direct manual control functions, panel indication and electromechanical signal alarm functions, overvoltage and undervoltage protection functions, and phase failure and phase loss protection functions , with under-current and under-power functions, and coordinated time current protection characteristics (with four-stage protection characteristics of overload inverse time limit, definite time limit, short-circuit instantaneous, and extra-large short-circuit instantaneous). Function modules or accessories can be selected as needed to achieve Control and protection of various motor loads and distribution loads, integrating control and protection.
, Purpose
The control and protection switch is mainly used for AC, rated voltage to, rated current from to, adjustable The operating current is connected to, the power of the motor is controlled from the power system, and the current is connected, carried and broken under normal conditions (including specified overload conditions), and it is capable of connecting, carrying and breaking the current under specified abnormal conditions (such as short circuit). Current.
, product advantages
◇Compared with the system composed of separate electrical appliances
it has the characteristics of self-coordination of control and protection. The series control and protection switch electrical appliances integrate control and protection functions, which is equivalent to Circuit breaker (fuse) + contactor + overload relay + auxiliary electrical appliance. It solves the problem of matching protection and control characteristics between components that cannot or is difficult to solve with separate components, making the protection and control characteristics more perfect and reasonable ( With inverse time limit, definite time limit and instantaneous three-stage protection characteristics, a single product can be correctly selected according to the load power or current, replacing the previous various electrical appliances from the power incoming end to the load end, without the need for derating, greatly simplifying the design process workload.
It has unparalleled operating reliability and continuous operating performance of the system. It can be put into use without maintenance after the flow, that is, it has continuous operating performance after breaking short-circuit fault. After conducting the breaking short-circuit current test, It still has an electrical life of not less than 10 times, which is difficult to achieve by a system composed of separate components such as circuit breakers. This feature greatly improves the operational reliability and continuous operation of the system. Among them, the index attribute It is the international leader in similar products and has the highest index in China.
Energy-saving materials have the advantages of small size, small installation area, no separate component contacts, reduced circuit heating, energy saving, and material saving.
◇With plastic shell Compared with circuit breakers, they have the characteristics of high breaking capacity and short arcing distance. The short-circuit breaking capacity in rated operation reaches high breaking type, standard type, and economical type. The breaking time under the expected short-circuit current is only ~ , the current limiting coefficient reaches the lower level, reaching the leading level of plastic case circuit breakers and reaching the current limiting level of fuses, which greatly limits the dynamic and thermal impact of short-circuit current on the system. The arcing distance is only ~.
Molded case Compared with the protection system composed of circuit breakers, the thermal trip (inverse time limit) current and the magnetic trip (definite time limit) current, which have the characteristics of adjustable protection setting current, can be adjusted on the panel, that is, in addition to the conventional thermal protection In addition to the current being adjustable according to the load power, the overcurrent protection setting current can also be adjusted on the panel (the adjustment range for the distribution load is ~, and the adjustment range for the motor load is ~). It overcomes the disadvantage that the short-circuit protection setting current of the molded case circuit breaker cannot be adjusted by the user after leaving the factory, so that even if the product is installed at the end of the line and the short-circuit current is small, it still has a good short-circuit protection function.
◇Compared with the performance of contactors, it has the characteristics of long life and easy operation
The mechanical life is up to ~10,000 times, and the electrical life is ~10,000 times. It can be operated manually on site or remotely. Automatic control function. The advanced separation design of the contacts and the electromagnetic system is adopted, which effectively suppresses the secondary bounce of the contacts, greatly improves the electrical life of the product, and is especially suitable for severe occasions such as heavy-load starting.
Other features
A complete set of accessories such as auxiliary contacts and signal alarm contacts, shunt trippers, remote re-releasers, door or drawer panel operating mechanisms, control circuit conversion modules, etc. A complete control and protection unit can be formed on a single product to achieve coordinated control and protection functions.
Flexible installation: horizontal installation, vertical installation, and horizontal installation will not affect the performance. It can be widely used in compact complete sets, including fixed or drawer-type cabinets, especially in / and / drawers. It has incomparable advantages over separate components.
Full reliability, high protection level. The terminal blocks for front panel and plug-in rear panel wiring are all anti-touch functions. When equipped with high protection level shells, they can be used in humid places in civil buildings, basements, pump rooms, coal mines, etc. It is an ideal product to replace the current electromagnetic starters, protected and combined starters in ports, ships, petrochemical and other fields.
Complete model and type of product
Basic model of series of products
Series of digital fire-fighting control and protection switching appliances
Series of isolation control and protection switching appliances
Products with multiple functions Combination device model
Two-speed control and protection switching appliances
Three-speed control and protection switching appliances
Reversible control and protection switching appliances
Star-delta pressure reducing starter
Starter
Note
1. Under normal circumstances, when the rated current is below, the main frame is selected for the switch, and the main frame is selected for the switch. The main frame can also be used below.
2. The basic configuration of the switch is switch body + electronic overload release + short circuit alarm contact + overload alarm contact (type is fire alarm contact) + auxiliary contacts (two normally open and one normally closed).
3. Please determine (design) or adjust (use) the setting current according to the actual load capacity (power).
4. Auxiliary contacts (one normally open and one normally closed).
Auxiliary contacts (three normally open and two normally closed)
5. For the rated operating current range of the overload electronic release, see the basic technical parameter table.
, Ordering Instructions
When ordering, users need to provide the following information
, detailed description of the model such as (control and protection switch, frame level current, main body rated current, auxiliary)
Provide the controlled motor power, current, and voltage.
If you have special requirements, please specify them in text. For example, auxiliary requirements, etc.
For details, please take a look at our company's sample information
Zhejiang Shendun Electric Co., Ltd.
Mainly engaged in dual power automatic transfer switch appliances, dual-speed motor controllers, reversible control and Protection switch electrical appliances fire-fighting series control and protection switch electrical appliances control and protection switch electrical appliances high-quality manufacturers manufacturers suppliers factory prices wholesale purchase supply, Wenzhou Shanghai, professional manufacturers multi-functional electrical appliances Wenzhou high-quality control protection switch star delta pressure reduction starter control protection switch High-quality intelligent integrated leakage protector, high-quality manufacturer, pressure-reducing starter, Yueqing, Wenzhou, Shanghai
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