MK1 series control and protection switchgearDetailed product description：

MK1 series control and protection switchgear
Product Overview
Shell current: 0.4A~100A
Rated working voltage: 50/60Hz, AC400V
Rated operating short-circuit breaking current: 35kA, 50kA
Derivative functions: leakage, isolation, communication, alarm unprotected
Start delay: adjustable from 0 to 99 seconds
Overcurrent protection: can be set on site
Undercurrent protection: adjustable on site, factory set to 60% Ie
Three phase unbalance (phase failure) protection: 20~75% adjustable, factory set to 75%

Product Features
It has three-stage protection including long delay, short circuit short delay, and short circuit instantaneous protection
It has functions such as phase failure, overcurrent, locked rotor, undercurrent, overvoltage, undervoltage, leakage, three-phase imbalance, isolation, and startup delay
Equipped with voltage display and current display functions;  
Parameters can be set and queried
Equipped with fault memory function, convenient for fault query and maintenance;  
Equipped with a 485 communication interface, it enables remote intelligent management.

Application scenarios
Widely applicable to distribution and motor protection and control systems in metallurgy, coal mining, steel, petrochemicals, ports, ships, railways and other fields; Motor Control Center (MMC); Lighting, power conversion, pumps, fans, air conditioning, fire protection, lighting and other electrical control and protection systems in modern buildings; Ports or railway systems (airports, railway passenger transport centers, etc.); Highway lighting or ventilation system; Fire pumps, fans, etc. for various occasions.