China Supply XL-MNS Series Conventional Low voltage Switchgear

The design solutions used clearly decrease the possibility of damages occurring to components inside the switchgear. In the unlikely event of arcing, damage is localized in the com-partment where the arc occurred. This allows fast repair and recommissioning of the switchgear.

Product Details Company Profile

Description

Place of Origin: Jiangxi, China (Mainland)
Brand Name: XILING
Model Number: XL-MNS
Type: Conventional
Poles Number: Other
Certificate: IEC 61641 IEC 60298 IEC439 IEC299

The MNS switchgear is divided into separate equipment, busbar and cable compartments.

The design solutions used clearly decrease the possibility of damages occurring to components inside the switchgear. In the unlikely event of arcing, damage is localized in the compartment where the arc occurred. This allows fast repair and recommissioning of the switchgear.

The basic elements of the MNS frame construction are “C” shaped steel profiles with a 25 mm (=1E) hole pitch according to DIN 43660. The profiles are galvanic protected (Zn or Al/Zn) against corrosion. The assembly is maintenance free.

MNS switchboard enclosure is made of sheet steel protected by galvanic coating and powder coating for maximum durability.

Final construction varies depending upon the required degree of protection (IP) In accordance with the general safety philosophy followed with MNS, each compartment and sub-compartment which requires access for commissioning, operation or maintenance, has its own door.

The MNS main busbar system is arranged in the rear of the switchgear in the busbar compartment. This assures a maximum distance between the busbars and the operator and maintenance staff. Special fastening method guaranties safe connections during the whole life cycle without the need of additional tightening. Main busbars are divided into sections depending on transportation units. Main busbars can be manufactured from aluminium or copper. As option fully insulated solution utilizing heat shrinkable sleeving is available.

Copper or aluminium (optional) distribution busbars run vertically the full height of the cubicle and are used for feeding of outgoing modules. In case of withdrawable module solution distribution busbars are manufactured from silver plated copper and embedded into a multifunction wall. The multifunction wall is a unique MNS design. It constitutes a complete barrier between the main busbars and the equipment compartment. The distribution bars are fully phase segregated and insulated. This design makes it virtually impossible for an arc to pass between distribution bar phases or between main busbars and equipment compartment.

System highlights:

-Maintenance free busbar construction

-Easy switchgear extension

-Main busbar arrangement at the rear thus assuring

-maximum safety to personnel

−effective withstand against highest stresses in case of short circuit

−optimum heat dissipation

−Gas tight seals for connection from the equipment compartment to the main busbars system

−Option for Form 4 separation for both incoming and outgoing assemblies

−Active and passive arc fault prevention tested according to IEC 61641

−Isolating materials are free of CFC and halogen

Main Electric Parameters for Switchgear

Standards		Type-tested switchgear assemblies (TTA)	IEC 60439-1, CEI 60439-1, DIN NE 60439-1, VDE 0660 part 500, UTE 63-412
Test certificates		ASTA, Great-Britain (resist. to accidental arcs acc. IEC 61641 and IEC 60298, Appendix AA),
		DLR German Research Institute for Aerospace e. V. Julich, Earthquake Test for Security Arears in Nuclear Power Stations
		IABG Industrieanlagen Betriebsgessellschaft, Vibration and shock tests
		Complying with Germanisher Lloyd, Hamburg
Electrical data	Rated voltages	Rated insulation voltage Ui		1000 V 3~, 1500 V–
		Rated operating voltage Ue		690 V 3~, 750 V–
		Rated impulse withstand voltage Uimp		6 / 8 / 12 kV
		Overvoltage category		II / III / IV
		Degree of pollution		3
		Rated frequency		up to 60 Hz
	Rated current	Main busbars:
		Rated current Ie		up to 6300 A
		Rated peak withstand current Ipk		up to 250 kA
		Rated short-time withstand current Icw		up to 100 kA
		Distribution busbars:
		Rated current Ie		up to 2000 A
		Rated peak withstand current Ipk		up to 176 kA
		Rated short-time withstand current Icw		up to 100 kA
	Arc fault Containment	Rated operational voltage		690 V
		Prospective short-circuit current		100 kA
		Duration		300 ms
		Criteria		1 to 5
	Forms of separations			Up to Form 4
Mechanical characteristics	Dimensions	Cubicles and frames		DIN 41488
		Height		2200 mm
		Panel width		400, 600, 800, 1000, 1200 mm
		Depth		400, 600, 800, 1000, 1200 mm
		Basic grid size		E = 25 mm acc. to DIN 43660
	Degrees of Protections	According to IEC 60529		External from IP 30 to IP 54
				Internal from IP 2X
	Steel components	Frame, incl. internal subdivisions		2,0 / 2,5 mm
		Cladding, internal		Minimum 1,5 mm
		Cladding, external		Minimum 2,0 mm
	Surface protection/Paint	Frame, incl. internal subdivisions		Zinc or Alu-zinc coated
		Cladding, internal		Zinc or Alu-zinc coated
		Cladding, external		Zinc or Alu-zinc coated
				Powder coated RAL 7035 (light grey)
	Plastic components	Halogen-free, self-extinguishing, flame retardant,		IEC 607070
		CFC-free		DIN VDE 0304 part 3
Optional Extras available on request	Busbar system	Busbars		Fully insulated
				Silver plating
				Tin plating
	Special qualification	Test certificates		See test certificates listed above
	Paint	Enclosure		Special colors on request