500 Amps Isolator Switch, 3 Pole/ 4 Pole

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$219.63

500 Amps isolator switch is mainly used for AC 50Hz, rated voltage 380V, 3 pole or 4 pole for selection, rated insulation voltage 690V. Long service lifetime, high safety, small size and easy operation.

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Load Operation *

SKU: ATO-IS-HGL500A

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Delivery date: 6-12 days

Overview

500A load break isolator switch for sale, ATO provide you with the highest quality, lowest price, free shipping, 3 pole or 4 pole for choose from, dielectric strength 1890V, manufacturer direct sale.
In this video, we delve into the world of load break switches, mechanical devices capable of being operated while under load. We'll explore their functionality, applications in electrical systems, and provide a detailed breakdown of their features to equip you with a thorough comprehension of their advantages.

Isolator Switch Specifications

Basics	Model			ATOHGL-500A
	Pole			3 Pole/4 Pole
	Weight		3 Pole	4.7 kg
			4 Pole	6 kg
Technical Parameters	Rated current			500A
	Rated insulation voltage Ui			690V
	Dielectric strength			1890V
	Rated surge-resistant voltage Uimp kV (installed category IV)			6
	Rated working current le	380V	AC-21	400A
			AC-22	400A
			AC-23	340A
		660V	AC-21	400A
			AC-22	315A
			DC-23	125A
		220V	DC-21	400A
			DC-22	400A
			DC-23
		440V	DC-21	400A
			DC-22	400A
			DC-23	400A
	Motor power P (380V) Kw		380V	220 Kw
			660V	185 kW
	Rated short-time withstand current lcw（kA rms)0.1s/ 1.0s			12.6
	Rated breaking capacity Icm (Arms) AC23 380VA			3200
	Rated making capacity Icm (Arms) AC23 380V			4000
	Rated short-current making capacity Icm' (Kapeak value）			25
	Mechanical durability (number of cyclic operation)			800 times without power, 200 times with power, a total of 1000 times.
	Electric durability Ue=660V, Rated current		COSφ=0.95AC21	1700
			COSφ=0.65AC22	100
			COSφ=0.35AC23	500
Working Environment	Moment of operation			1.2 Nm
	Temperature			-5℃~+55℃
	Way of working			Continuously working
	Operating			Handle
	Installation form			Vertical
	Altitude			≤2000m
	Pollution level			3
	Overvoltage level			Ⅲ
	IP level			IP 20

Dimension

Current	A	B	C	D	D1	E	ΦL	J	K	N	P	R	S	U	ΦX	Y	F	H
500A/3P	230	240	179	50	137	115	7	210	140	135	65	32	40	206	11	37	95	20
500A/4P	290	240	179	520	137	114	7	210	140	135	65	32	40	206	11	37	95	20

Load Break Switch Operation Mode

Load Isolator Disconnect Switch

Details

Tips: What causes the contact resistance of the isolating switch to increase?

The reason for the increase in contact resistance is: the repulsive force of the contact between the blade and the knife tip is very large, and the knife edge is not tightly closed, which causes surface oxidation and increases the contact resistance. Secondly, the disconnecting switch will cause arcing during the pulling and closing process, burn the contacts, and increase the contact resistance.

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