Kb0 Description: National Electrical Switch Factory, www.jiandq.com
KBO is a kind of improved control and protection switch electric appliance, the name is CPS, namely" control and protective switching devices " English abbreviation, as new categories of products, its product category for" CPS". Control and Protective Switching Devices is the English abbreviation. KBO is the" control and protective switching devices" and" KB0" two Chinese characters Pinyin acronym, O is to fill the gaps of the first generation.
Product function:
The large instantaneous short-circuit protection: protection current and rated current of the switch main body, its current setting for the 20In + 20%, T4 = 2 ~ 3MS action time
The instantaneous short-circuit protection: current protection and electronic breaker rated current, the current setting for 16In - 15%, T3 < 0.1ms action time
The short circuit short-time delay or fixed protection: current protection and electronic breaker rated current, the current setting panel adjustable ( 6 ~ 12Ir1 ) + 15% ( for motor protection), ( 3 ~ 6Ir1 ) + 10% ( power distribution protection ), delay action setting time T2 = 0.2S the overload long-time delay protection: current protection and electronic breaker rated current, the current setting of Ir1 panel adjustable 0.4 ~ 1Ie, inverse time characteristic for I2T = ( 1.5Ir1 ) 2t1, T1 for long time delay current 1.5Ir1 setting time, distribution by T1 = 64S, T1 = 128s the motor open-phase, broken phase protection: action setting time for 2S
The three-phase unbalance protection: arbitrary phase current difference of more than 50%, action setting time for 2S
The overvoltage protection: phase 470 + 10V, 5S action setting time
The undervoltage protection: phase 270 + 10V, action setting time 5
The start-up delay: short circuit short-time delay or time limit does not protect, setting time for 2S
The fire interface: DC 24V fire interface output ( optional)
The residual current leakage protection: customized according to customer requirements, the action time of 0.1s ( time delay for 0.3s ) ( optional)
The warning function: current adjustable
The online programming function
The fault indicator
The test function
The ambient air temperature of upper limit value is less than + 40 DEG C.
A lower value not less than - 5 DEG C.
A daily average of not more than 35 DEG C.
Delta when the ambient air temperature beyond and above the scope, the user can consult with our company
The location of the installation height of not more than 2000 meters above sea level
The atmospheric conditions:
Atmospheric relative humidity in the ambient air temperature of + 40 C when not more than 50%; at lower temperature can have a higher relative humidity. The monthly mean minimum temperature of + 25 C, the monthly mean relative humidity is 90%, due to temperature changes occur in the products of the gel must take measures
The contamination grades: Grade 3
Installation categories: Class III ( 690V system ), IV ( 380V system )
Control supply voltage should be in ( 85% ~ 110% ) Us fluctuations within
Other characteristics:
Accessories complete a.
Auxiliary contacts and alarm contact, shunt tripping device, remote and buckle device, a door or drawer panel operating mechanism, control circuit module, on a single product can constitute a complete control and protection unit, realize the coordinated control and protection function.
Installation of flexible B.
Horizontal, vertical, horizontal installation the installation does not affect the use of performance. Can be widely used in compact sets of devices, including a fixed type or a drawer type MCC cabinet, in particular KB012, 16, 18, 32, 45 in 1 / 4 and 1 / 2 Drawer in the application, with separate components incomparable superiority. C is safe and reliable, high protection level
In front of the plate, inserted after the wiring board connection terminals have contact prevention refers to the function, with high grade protection shell, and can be suitable for the civil construction of the damp places, basement, water pump house, coal mines, ports, shipbuilding, petrochemical and other fields, is the alternative current electromagnetic starter, protection type and combination type starter ideal product.
KBO series of products using the modular single product structure, integration of the traditional circuit breaker ( fuse ), contactor, overload ( or over-current, open phase protective relay, starter ), isolators, main function, is away from the automatic control and in situ direct human control function, has a panel indication and electrical signal alarm function with over-voltage, under-voltage protection function, the phase is broken phase protection function, has coordinated time current characteristics ( protection with inverse time limit, and the instantaneous protection characteristic of three section ). According to the need of matching function modules or attachments, can realize the various types of motor load, the load distribution control and protection.
The KBO series products are mainly used for the exchange of 50Hz ( 60Hz ), rated voltage, rated current to 690V from 3A to 100A, adjustable working current is from 0.12A to 100A power system is switched on, bear and break the normal conditions ( including the specified overload conditions ) under the current, and can be switched on and off, carrying provisions abnormal conditions ( such as the current short circuit ).
From its structure and function, KBO series of products is no longer a contactor, or circuit breaker, or thermal relays and a single product, but a set of control and protection system. It appears from the fundamental solution to the traditional using discrete components (usually the breaker or fuse + + overload relay contactor ) due to selection caused by unreasonable control and protection of unreasonable matching problems, especially overcome due to the adoption of different evaluation standards of electrical products are combined together, protection characteristics and control characteristics with the discordant phenomenon, greatly improve the control and protection system reliability and continuous running performance