Moulded case circuit breaker requires reliable switching technology
MCCB is a kind of electrical protection device, which can be regarded as the "Big Brother" of MCB, which is often used i ...
What specific methods and precautions should be taken in the selection of moulded case circuit breaker
I. Application Scope and Usage of Molded Case Circuit Breakers Plastic case circuit breakers are widely used in distrib ...
Function of Molded Case Circuit Breaker Accessories
As a derivation and supplement of circuit breaker function, accessories add control means and expand protection function ...
Stop worrying about how to choose the type of moulded case circuit breaker
Molded Case Circuit Breaker is widely used in industry, agriculture, transportation, mining, civil construction and nati ...
Protection Function of Molded Case Circuit Breaker
(1) Short circuit protection Short-circuit protection is short-circuit instantaneous tripping. Attention should be paid ...
Main Functions of Molded Case Circuit Breaker
Moulded Case Circuit Breaker is also known as device type circuit breaker. All parts are sealed in plastic case, auxilia ...
Technical Requirements for Distribution Box in Electrical Industry
Different industries, different products have different technical requirements, in the electrical industry, distribution ...
What do AC-3 and AC-4 of AC contactors mean ？
Examples of Category Code and Typical Use AC-1 contactor is used to control inductionless or slightly inductive load an ...
How to choose the current of AC contactor and thermal relay ?
Under the condition of satisfying the voltage level, it is selected according to the current of the load. (1) The rated ...
What are the components of AC contactor ?
AC contactor mainly consists of four parts: (1) Electromagnetic system, including attraction coil, moving iron core and ...
How to Connect 380V AC Contactor ?
AC contactors 1L1, 3L2, 5L3 are contactor power supply side, connected with three-phase power supply. 2T1, 4T2 and 6T3 ...
What's the reason why AC contactor can't pickup ?
AC contactor can not pick, check whether the grid voltage is too low, whether the control line is falsely connected. If ...
Connection of 220V AC contactor ?
The working voltage of contactor coil, 380 or 220V, and what do you do? How much current should the main contact be? For ...
What's the use of AC contactor's NO and NC ?
When the contactor coil is not powered up, the auxiliary contacts of the contactor in the natural state have no conducti ...
Why should netural line and protective line busbars be set up separately in the distribution box ?
Protecting grounding bus mainly plays a protective role. Generally, it connects with grounding wire. Protecting groundin ...
What is the minimum protection level for outdoor distribution boxes ?
Choose different levels of protection in different environments. The protection level of outdoor distribution boxes req ...
Differences between Miniature Circuit Breakers and Moulded Case Circuit Breakers
1. Moulded case circuit breaker can be connected to thicker conductors, such as more than 35 square meters. Miniature ci ...
Adjustment Method for trip of Moulded Case Circuit Breaker
The first method is to use the adjustable plastic case circuit breaker (with adjustable knobs on the cover) directly for ...
How to explore the Long Delay Parameters of Moulded Case Circuit Breaker
All protection is based on load, so, to understand the setting of overload protection value, according to the electrical ...
Difference between Electronic Moulded Case Circuit Breaker and Ordinary Moulded Case Circuit Breaker
Moulded case circuit breaker MCCB can only be classified as electromagnetic type and electronic type. Electromagnetic me ...
Main Characteristics of Molded Case Circuit Breaker
Rated limit short circuit breaking capacity Icu There are two kinds of breaking capacity indexes of circuit breaker: ra ...
What's the difference between the electronic and the electromagnetic releasers of leakage circuit breakers?
1. Different Auxiliary Power Supply Settings Electromagnetic leakage circuit breaker does not need auxiliary power supp ...
The relationship between opening distance, overrun, final pressure and release force of moulded case circuit breaker ?
The relationship between opening distance, overrun, final pressure and release force of moulded case circuit breaker? Th ...
How to solve the problem of temperature rise of plastic case circuit breaker? What is the cause to make temperature rise ?
1. The problem of material purity of electric conductor or or contact itself leads to excessive working resistance and c ...
