MNS Low Voltage Withdrawable Switchgear
  • MNS Low Voltage Withdrawable SwitchgearMNS Low Voltage Withdrawable Switchgear

MNS Low Voltage Withdrawable Switchgear

In the landscape of electrical solutions, Keeya, based in China, stands out as a premier supplier, epitomized by their MNS Low Voltage Withdrawable Switchgear. Meticulously designed to cater to specific client requirements, the MNS series reflects Keeya's dedication to flexibility and adaptability in electrical systems.

Model:MNS

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Product Description

MNS Low Voltage Withdrawable Switchgear

Renowned for its robust construction and enduring performance, the Keeya high quality MNS Low Voltage Withdrawable Switchgear ensures the longevity and reliability of low voltage installations. Keeya's emphasis on customization underscores their mission to deliver tailored, durable solutions that meet the evolving needs of the electrical industry.

Main application

This series of low-voltage withdrawable switchgear is a combination cabinet type assembled by the factory using standard modules (FBA).

This series of low-voltage withdrawable switchgear is suitable for power plants, substations, petrochemical, metallurgical steel rolling, transportation energy, light industry and textile enterprises, residential communities, high-rise buildings, and other places. It is used for energy conversion, distribution, and control of power distribution equipment in power systems with AC 50-60HZ and rated working voltage AC 660V and below.

This device complies with the national professional standards of GB7251.1 "Low Voltage Complete Switchgear" and JB/T9961 "Low Voltage Withdrawable Complete Switchgear", as well as IEC439-1 international professional standards.


MNS Low Voltage Withdrawable Switchgear

This series of low-voltage withdrawable switchgear is a kind of combined cabinet that is assembled by factory (FBA) with standard modules.

This series of low-voltage withdrawable switchgear is applicable to power plants,substations,petrochemical,metallurgical and steel rolling,transportation,energy,light industrial and textile enterprises,residential quarters,high-rise buildings and other places,as the power distribution equipment of the AC 50~60HZ power system with rated working voltage of 660V and below for power conversion, distribution and control.

The installation complies with GB 7251.1 Low-voltage switchgear and controlgear assemblies-Part 1: Type-tested and partially type- tested assemblies and JB/T 9961 Low-voltage withdrawable switchgear and controlgear assemblies and IEC439-1 international professional standards.


Normal service condition

● The ambient air temperature shall not be higher than +40℃ and lower than -5℃,and the average temperature shall not be higher than +35℃ within 24 hours. Atmospheric conditions:The air is clean and the relative humidity does not exceed 50%at the maximum temperature of +40℃ . Higher relative humidity is allowed at lower temperatures,e.g.90%at +20℃,but temperature changes should betaken into acc- ount as condensation may occur occasionally.

● Altitude:not exceeding 2000m.

● The device is suitable for transport and storage processes at temperatures ranging from -25℃ to +55℃ and up to +70℃ for a short period of time (not exceeding 24h).The device should not suffer any irreversible damage at these limited temperatures and should be able to operate normally under normal conditions.

● lf the above service conditions cannot be met,it shall be settled through negotiation between the user and the manufacturer. When the device is used on offshore oil drilling platform and nuclear power plant,a separate technical agreement shall be signed.


Basic technical parameter

1 Electric performance

660V(1000)V

Rated insulation voltage

380V 660V

Rated operating voltage

5000A

Max.operating current of main bus

100kA/1s

Rated withstand current of main bus

220kA/ls

Rated peak withstand current of main bus

1000A

Max.operating current of distribution bus(vertical bus)


Peak current of distribution bus(vertical bus)


Stanard type

105kA(max.)/0.1s

Reinforced type

176kA(max.)/0.1s


MNS Low Voltage Withdrawable Switchgear

Protection level

In line with IEC 529 and D IN 40050 standards

IP30: fix ed protation for size greater than φ 2.5 MM

IP40: fix ed protation for size greater than 1.0 MM φ

IP54: protection against dust and any direction of spatter

(Please consult with the manufacturer when ordering IP54 protection level)


Switch cabinet type

1.Power distribution center cabinet (PC): it can use EMAX, MT, 3WN, AH, ME series circuit breaker.

2.Motor control center cabinet (MCC): it is assembled by drawers of different sizes. The main switch of each circuit adopts high-grade broken plastic case circuit breaker or rotating load switch with fuse. Power factor automatic compensation cabinet (with manual, automatic and remote power factor compensation device)


Cabinet body schematic diagram


A power distribution center (PC)cabinet

Height

Width

Depth

Note

H

B

T

T1

T2

2200

400

1000

800

200

Main bus transfer

2200

400

1000

800

200

F₁s-1250-2000 ME630-1605

2200

600

1000

800

200

F₂s-2500

2200

800

1000

800

200

F₄s-3200 me2000-3200

2200

1000

1000

800

200

F₅s-4000 Me3205

2200

1200

1000

800

200

Me4005


MNS Low Voltage Withdrawable Switchgear

B Motor control center (MCC)cabinet

Height

Width

Depth

Note

H


B1

B2

T

T1

T2


2200

1000

600

400

600

400

200

Single-side operation

2200

1000

600

400

1000

400

200

Double-side operation


Combination mode diagram


Installation diagram




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