HGL Series Load Isolation Switch Manufacturer

HGL Load isolation switch

HGL series load isolation switch mainly suitable for AC 50Hz,rated voltage to 660V.

Description

Product representative image

Scope of Application

HGL series load isolation switch mainly suitable for AC 50Hz,rated voltage to 660V.DC rated voltage up to 440V,rated current up to 3150A,The switch is used in the infrequent making and breaking circuit.

Application Scenarios

The HGL Series Load Isolation Switch is designed for switching, isolating and controlling electrical circuits in low-voltage power distribution systems. With reliable isolation performance and high operational safety, it is widely used in industrial, commercial and infrastructure applications.

Power Distribution Systems

The switch is commonly used as a main switch, feeder switch or isolation switch in low-voltage distribution cabinets and switchboards. It provides safe disconnection of power sources during maintenance and servicing operations.

Industrial Facilities

Suitable for factories, manufacturing plants, processing equipment and industrial automation systems where reliable circuit isolation and load switching are required.

Commercial Buildings

Widely applied in office buildings, shopping malls, hotels, hospitals and other commercial facilities to ensure safe operation and maintenance of electrical distribution systems.

Power Generation and Energy Systems

Used in substations, generator sets, photovoltaic systems, energy storage systems and backup power systems for circuit isolation and power transfer applications.

Motor Control Systems

Installed in motor control centers (MCC), control panels and machinery equipment to provide safe switching and maintenance isolation functions.

Infrastructure Projects

Applicable to rail transit, telecommunications, water treatment plants, municipal engineering projects and other public infrastructure requiring dependable power control.

Normal working conditions

HGL series load isolation switch can work reliably under the folwina condition:

Height abovt sea level does not exceed 2 .000m;

Ambient temperature is not higher than +40℃ and not lower than -5'℃ ,Relative humiditly is not larger than 95%;

No explosive dangerous medium environment;

No rain and snow attack environment;

Note:lf the load isolation switch is expected to be used in the conditon that the ambient temperature is higher than +40'℃ or is lower than-5 ℃~-45℃,customers should inform to the manufactory.

Structural features

The HGL Series Load Isolation Switch adopts a modular design concept and advanced manufacturing technology, providing reliable switching performance, excellent insulation characteristics and flexible installation options.

Modular Structure Design

The switch features a compact modular construction, allowing flexible configuration according to different installation requirements while reducing panel space occupation.

High-Performance Insulating Housing

The housing is manufactured from glass-fiber reinforced unsaturated polyester resin, providing excellent dielectric strength, flame resistance, mechanical durability and environmental resistance.

Quick-Make Quick-Break Mechanism

The operating mechanism utilizes an energy-storage spring acceleration system that enables independent quick opening and quick closing actions. The switching speed is not affected by handle operation speed, ensuring reliable interruption performance and improved electrical life.

Double-Break Contact Structure

The double-break contact design significantly improves breaking capability, reduces arc duration and enhances operational safety under load switching conditions.

Flexible Operation Modes

The switch supports multiple operating methods, including:

Front operation

Side operation

Inside-panel operation

Outside-panel operation

This flexibility allows easy integration into various switchgear and distribution cabinet designs.

Auxiliary Function Expansion

Optional auxiliary contacts can be installed for status indication, interlocking control and remote monitoring applications.

Reliable Mechanical Performance

The robust operating mechanism provides stable switching performance, strong anti-vibration capability and long service life under demanding operating conditions.

Product Model and Its Meaning
HGL Load isolation switch

Technical Parameters

Conventional thermal current Ith(A)			63A		100A		160A
Rated currentin(A)			40	63	80	100	125	160
Rated impulse withstand voltage Ui(V)			750	750	750	750	750	750
Dielectric strength(V)			5000	5000	5000	5000	5000	5000
Rated Working currentle(A)	380V	AC-21	40	63	80	100	125	160
		AC-22	40	63	80	100	125	160
		AC-23	40	63	80	100	125	160
	660V	AC-21	40	50	80	80	125	160
		AC-22	32	32	50	50	125	160
		AC-23	25	25	40	40	80	80
	220V	DC-21	40	63	80	100	125	160
		DC-22	40	63	80	80	125	160
		DC-23	40	63	63	63	125	125
	440V	DC-21					100	125
		DC-22					100	125
		DC-23					100	125
Motor power P(Kw)		380V	18.5	25	40	40	63	80
Motor power P(Kw)		660V	22	22	33	33	75	75
Rated short-time withstand current lcw(kARms)0.1s/1.0s			10-5	10-5	10-5	10-5	20-10	20-10
Rated breaking capability lcn(Arms)Ac23380V			320	504	640	800	1000	1000
Rated making capability lcm(ARms)AC23380V			400	630	800	1000	1250	1250
Rated short-current making capability lcm(KA peak value)			7.5	7.5	10	10	12	12
Mechanical durability(number of cyclic operation)			10000	10000	10000	10000	10000	10000
Electric durability(number of cyclic operation) Ue=660V.Rated current le		COSφ=0.95 AC21	1700	1700	1700	1700	1500	1500
		COSφ=0.65 AC22	100	100	100	100	1000	1000
		COSφ=0.35 AC23	500	500	500	500	500	500
Moment of operation(Nm)			1.2	1.2	1.2	1.2	6.5	6.5

250A		630A				1600A			3150A
200	250	315	400	500	630	1000	1250	1600	2000	2500	3150
750	750	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000
5000	5000	8000	8000	8000	8000	10000	10000	10000	10000	10000	10000
8	8	12	12	12	12	12	12	12	12	12	12
200	250	315	400	500	630	1000	1250	1600	2000	2500	3150
200	250	315	400	500	630	1000	1250	1600	2000	2000	3150
200	250	315	340	425	536
200	250	315	400	400	500	1000	1000	1600	2000	2500	2500
160	160	315	315	315	315	800	800	800	1000	1000	1000
100	125	125	125	125	125
200	250	315	400	500	630	1000	1250	1600	2000	2500	2500
200	250	315	400	400	500	1000	1250	1250	1600	1600	1600
160	200
160	200	315	400	400	500	1000	1250	1250	2000	2000	2000
160	200	315	400	400	500	1000	1250	1250	1250	1250	1250
160	200	315	400	400	500	1000	1000	1000
100	132	160	220	280	315	560	560	560	710	710	710
90	110	185	185	185	185	475	475	475	750	750	750
30-12	30-12	45/20	45/20	50/25	50/25	90/50	90/50	90/50	90/50	90/50	90/50
1600	1600	2500	3200	3200	3200
2000	2000	3150	4000	4000	4000
17	17	30	30	40	40
10000	10000	5500	5500	5500	5500	4000	4000	3000
1500	1500	750	750	750	750	600	600	450	2500	2500	2500
1000	1000	500	500	500	500	400	400	300
500	500	250	250	250	250	200	200	150
10	10	14.5	14.5	14.5	14.5	37	37	60	60	60	60

External appearance and installation dimensions
HGL Load isolation switch

Specification	External dimension and installation dimension
In	A	A1	B	C	D	E	φL	J	K	N	P	R	S	T	U	φ×	Y
125A/3	141	50	135.5	115	27	70	5.5	120	65	85	36	20	235	3	85	9	21
125A/4	170	50	135.5	115	27	70	5.5	150	65	85	36	20	235	3	85	9	21
160A/3	141	50	135.5	115	27	70	5.5	120	65	85	36	20	235	3	85	9	21
160A/4	170	50	135.5	115	27	70	5.5	150	65	85	36	20	235	3	85	9	21
200A/3	180.5	60	170.5	132	35	85	5.5	160	90	115	50	25	290	3	110	11	25
200A/4	230.5	60	170.5	132	35	85	5.5	210	90	115	50	25	290	3	110	11	25
250A/3	180.5	60	170.5	132	35	85	5.5	160	90	115	50	25	290	3	110	11	25
250A/4	230.5	60	170.5	132	35	85	5.5	210	90	115	50	25	290	3	110	11	25
315A/3	230	85	240	174	50	118	7	210	140	145	65	30	400	5	160	11	35
315A/4	290	85	240	174	50	118	7	270	140	145	65	30	400	5	160	11	35
400A/3	230	85	240	174	50	118	7	210	140	145	65	30	400	5	160	11	35
400A/4	290	85	240	174	50	118	7	270	140	145	65	30	400	5	160	11	35
500A/3	230	85	260	175	50	118	7	210	140	145	65	40	400	5	160	13	35
500A/4	290	85	260	175	50	118	7	270	140	145	65	40	400	5	160	13	35
630A/3	230	85	260	175	50	118	7	210	140	145	65	40	400	5	160	13	35
630A/4	290	85	260	175	50	118	7	270	140	145	65	40	400	5	160	13	35