HR6 series fuse type isolating switchDetailed product description：

Scope of application
HR6 series fuse type isolating switch (hereinafter referred to as the switch). It is mainly used in distribution circuits and motor circuits with high short-circuit current and rated voltage of AC 660V (45-62Hz), with agreed heating and electric heating up to 630A. It is used as a power switch, isolation switch, emergency switch, and circuit protection, but generally not used for directly opening and closing a single motor. The performance of this product complies with IEC947-3 and GB14048.3 standards.

Model and meaning



Structural features:
The switch consists of a base, cover, and arc extinguishing chamber, all made of arc resistant plastic and featuring a fully plastic structure. The static contact is directly mounted on the base, and the arc extinguishing chamber is easy to disassemble and assemble. Each arc extinguishing chamber has two parts: an inner chamber and an outer chamber. Multiple metal arc extinguishing grids are used to enhance the arc extinguishing ability and improve the contact life.
The NT type fuse link is installed inside the cover, and the cover can rotate in a fan shape along the support, with a large electrical isolation distance to meet the requirements of the isolation switch. The cover can be easily removed from the base, making installation and replacement of the fuse link very convenient. There are three sets of mounting holes on the base to meet the requirements for installation inside various switch cabinets and on panels. On the side of the switch, auxiliary contacts can be installed as needed to send signals indicating the on/off status of the switch.

Main technical parameters
Basic parameters of fuse link

model	Rated voltage (V)	Rated current (A)
NT00	three hundred and eighty	4. 6, 10, 16, 20, 25, 32, 35, 40, 50, 63, 80, 100, 125, 160
	six hundred and sixty	4. 6, 10, 16, 20, 25, 32, 35, 40, 50, 63, 80, 100
NT1	three hundred and eighty	80, 100, 125, 160, 200, 224, 250
	six hundred and sixty	80, 100, 125, 160, 200
NT2	three hundred and eighty	125, 160, 200, 224, 250, 300, 315, 355, 400
	six hundred and sixty	125, 160, 200, 224, 250, 300, 315
NT3	three hundred and eighty	315, 355, 400, 425, 500, 630
	six hundred and sixty	315, 355, 400, 425

Technical parameters of HR6 series fuse type isolating switch

model		HR6-160	HR6-250	HR6-400	HR6-630
Rated insulation voltage (V)		six hundred and sixty	six hundred and sixty	six hundred and sixty	six hundred and sixty
Agreed heating current (V)		one hundred and sixty	two hundred and fifty	four hundred	six hundred and thirty
Rated working current (A)	380V	one hundred and sixty	two hundred and fifty	four hundred	six hundred and thirty
	660V	one hundred	two hundred	three hundred and fifteen	four hundred and twenty-five
	380V. COS φ=0.35 AC23B connected	one thousand two hundred and eighty	two thousand	three thousand and two hundred	five thousand and forty
Rated connection and disconnection capacity (A) (at 1.05Ue)	segmentation	nine hundred and sixty	one thousand and five hundred	two thousand and four hundred	three thousand seven hundred and eighty
	660V. COS φ=0.65 AC22B connected	four hundred and eighty	seven hundred and fifty	one thousand and two hundred	one thousand eight hundred and ninety
	segmentation	four hundred and eighty	seven hundred and fifty	one thousand and two hundred	one thousand eight hundred and ninety
Rated short-circuit current KA		fifty	fifty	fifty	fifty
Maximum expected peak current KA		one hundred	one hundred	one hundred	one hundred
Equipped with NT fuse model		00	one	two	three
pollution level		three	three	three	three
Installation category		Ⅲ	Ⅲ	Ⅲ	Ⅲ

HR6 series fuse type isolating switch appearance and installation dimensions:

HR6 series fuse type isolating switch