MNS Series LV AC Withdrawable Switchgear - China Suppliers and Factory with IEC 61439 Standard, 400V Rated Voltage
MNS LV withdrawable switchgear (hereinafter referred to as device) is manufactured by standard module and synthetically improved. The device is applicable to the system with AC 50Hz, rated working voltage 660V and below, used as control device for various power generation, transmission, distribution, power transfer and power consumption device.
General
MNS LV withdrawable switchgear (hereinafter referred to as device) is manufactured by standard module and synthetically improved. The device is applicable to the system with AC 50Hz, rated working voltage 660V and below, used as control device for various power generation, transmission, distribution, power transfer and power consumption device. It is widely used in low voltage distribution system of various mining enterprise, tall building and hotel, municipal construction etc. Besides the general land use, after special disposal, it also can be used for marine petrol drill taken platform and nuclear power station. The device accords with international standard IEC439-1.
Features
Compact Design
Contain more function units with less space.
Strong Versatility
Flexible assembly. C type bar section of 25mm modulus can meet the demands of various structure, protection grade and operating environment.
Standard Module Design
Can be combined into protection, operation, transfer, control, regulation, measurement, and indication units. Over 200 components available.
Fine Security
Adopt high strength antiflaming type engineering plastic to effectively enhance protective safety performance.
High Technical Performance
Main parameters reach the advanced domestic level.
Service Environment
Temperature: -5℃ to +40℃ (Average ≤ +35℃ in 24h).
Air Condition: Clean air. Humidity ≤ 50% at +40℃; up to 90% at +20℃.
Altitude: Should not exceed 2000M.
Storage: -25℃ to +55℃ (Short term up to +70℃ within 24h).
* If operating conditions are not met, consult the manufactory. Technical agreements are required for marine or nuclear power station use.
Structure Characteristics
The basic cabinet is a combined assembly structure. Pieces are zinc plated, connected through self-tapping locking screws or 8.8 grade square corner screws. Components like gates, closing boards, baffle plates, and bus bars can be added based on project demands. Interior components follow the modulus unit e=25mm.
Frequently Asked Questions (FAQ)
What is the rated voltage for MNS LV switchgear?
The device is applicable to systems with a rated working voltage of 660V and below, operating at AC 50Hz.
Where can this switchgear be installed?
It is widely used in mining enterprises, tall buildings, hotels, municipal construction, and even specialized environments like marine petrol platforms and nuclear power stations.
What international standards does the MNS switchgear comply with?
The device complies with the international standard IEC439-1.
What are the environmental requirements for operation?
It operates optimally between -5℃ and +40℃, at altitudes below 2000M, and in clean air with controlled relative humidity.
What makes the MNS design "compact"?
The compact design allows for more functional units to be contained within a smaller physical footprint through modular assembly.
How is the cabinet structure assembled?
It uses a combined assembly structure with zinc-plated pieces connected by high-grade locking screws, following a 25mm modulus unit for interior components.

