Function and characteristics of KBO control and protection switch
1 accessories complete
The auxiliary contact and signal alarm contact, shunt tripping device, remote device, then buckle the door or drawer panel operating mechanism and a control circuit module, control and protection unit can complete in a single product, to achieve the coordination of control and protection function.
2 easy installation
Horizontal, vertical, horizontal installation does not affect the use of performance. Can be widely used in compact sets of devices, including the MCC cabinet fixed or drawer type, especially KB012, 16, 18, 32, 45 in 1/4 and 1/2 in the drawer application, is superior in the separation of components can not be compared. C. safe and reliable, high protection level
Terminal board, insertion type wiring on back of the board have anti finger function, equipped with a high level of protection shell, can be applied to civil construction of the wet places and basement, water pump room, coal mines, ports, shipbuilding, petrochemical and other fields, is an ideal product for replacing electromagnetic starter, protection type and combined type starter.
Large instantaneous short circuit protection: protection current and rated current of the switch body, the current setting is 20In + 20%, the action time of T4 is less than or equal to 2 ~ 3MS
Instantaneous short-circuit protection: protection of current related electronic circuit breaker rated current, the current setting is 16In + 15%, the action time is T3 less than 0.1ms
Short delay or time limit protection: protection of current related electronic circuit breaker rated current, the current setting panel adjustable (6 ~ 12Ir1) + 15% (motor protection), (3 ~ 6Ir1) + 10% (distribution protection), delay action time setting t2=0.2s overload long delay protection: protection current related to electronic circuit breaker rated current, the current setting of Ir1 panel can be adjusted from 0.4 to 1Ie, inverse time characteristic (1.5Ir1) for I2T= 2t1, T1 for the long time delay current 1.5Ir1 tuning time distribution with t1=64s, t1=128s motor for loss of phase protection: the setting time of 2S phase unbalance protection: arbitrary phase current difference of more than 50%, setting time is 2S
Overvoltage protection: three phase 470 + 10V, setting time 5S
Under voltage protection: three phase 270 + 10V, action setting time 5S
Start delay: short circuit short delay or time limit is not protected, setting time is 2S
Fire protection: DC 24V fire interface output (optional)
Leakage protection: residual current can be customized according to customer requirements, the action time is less than 0.1s (delay 0.3s) (optional) KBOS-125A
Alarm function: adjustable current, online programming function, fault indication, test function. KBO basic technical characteristics of KBO using single product structure modularization, integration of the traditional circuit breaker (fuse), contactors, overload (or overcurrent, phase interruption) main function relay, starter, isolator, with automatic remote control and local control panel has the function of direct labor, instructions and electrical signals has the alarm function, the time characteristics of current protection coordination (anti time limit, time limit and instantaneous protection characteristic three). According to the need to select functional modules or accessories, you can achieve the general (not frequent start) motor load, frequent start motor load, distribution circuit load control and protection.