HGLR Fuse Combination Switch Manufacturer

HGLR Load isolation switch

HGLR series fuse combination switches mainly suitable for AC 50Hz,rated voltage up to 660V,DC rated voltage up to 440V,the rated current up to800A,used for non-frequent on and off circuit.

Description

Product representative image

Scope of Application

HGLR series fuse combination switches mainly suitable for AC 50Hz,rated voltage up to 660V,DC rated voltage up to 440V,the rated current up to800A,used for non-frequent on and off circuit.

Application Scenarios

The HGLR Series Fuse Combination Switch is specially designed for low-voltage power distribution systems that require both load switching and short-circuit protection. By combining a load isolation switch with fuse links in a single compact unit, it provides reliable circuit isolation, operational safety and fault protection, making it an ideal solution for modern electrical installations.

In industrial facilities, the HGLR series is commonly used as an incoming switch, feeder switch or equipment isolation switch in distribution cabinets and motor control centers. Its ability to safely make and break load currents while providing effective short-circuit protection helps ensure continuous operation of production lines and critical machinery.

In commercial buildings such as shopping malls, office complexes, hotels and hospitals, the switch is frequently installed in main distribution boards and sub-distribution systems. The visible isolation function and dependable protection characteristics simplify maintenance procedures and improve operational safety for facility management personnel.

The HGLR series is also widely used in power generation and renewable energy applications. In photovoltaic combiner boxes, energy storage systems and generator distribution panels, it provides safe isolation of circuits during maintenance while ensuring reliable protection against fault currents through the installed fuse links.

For infrastructure projects including telecommunications stations, water treatment facilities, transportation systems and municipal engineering works, the switch offers a durable and dependable solution for controlling and protecting low-voltage power circuits. Its compact design and flexible installation options make it particularly suitable for installations where space efficiency and operational reliability are equally important.

Normal working conditions

HGLR series fuse combination switches has reliable operation under the following 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 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

Integrated Switching and Protection Design

Combines load switching, circuit isolation and fuse protection in a single unit, reducing installation space and simplifying system design.

Quick-Make and Quick-Break Mechanism

Equipped with a spring-assisted operating mechanism that ensures fast contact opening and closing, independent of handle operating speed.

Reliable Short-Circuit Protection

Designed for use with NH/NT fuse links, providing effective protection against short-circuit and overcurrent faults.

High-Performance Insulating Housing

Manufactured from glass-fiber reinforced polyester material, offering excellent insulation properties, mechanical strength and flame resistance.

Visible Contact Status

The switch position can be clearly identified, allowing safer operation and easier maintenance.

Flexible Installation Options

Available in front-operated or side-operated configurations and can be equipped with auxiliary contacts and external operating handles to suit different switchgear designs.

Product Model and Its Meaning
HGLR Load isolation switch

Technical Parameters

Conventional thermal current 1 th(A)			160	250	400	630	1250
Rt16 Fuse-link dimension NT			0 0 或 0	1	2	3	4
Power-dissipation of a fuse-link 660V AC(V)(W)			9.6	18.3	26	40.3	一
Rated insulatioion voltage Ui(V)			750	750	750	1000	1000
Dielectric strength(V)			6000	6000	6000	8000	8000
Rated impulse withstand voltage Uimp KV(installed type IV)			8	8	8	12	12
Rated Working current le(A)	380V	AC22 Cosφ=0.65	160	250	400	630	1250
	380V	AC23 Cosφ=0.35	160	250	400	630	1250
	660V	AC22 Cosφ=0.65	160	250	400	500	1250
	660V	AC23 Cosφ=0.35	125	200	250	315	一
	220V	DC23L/R=15ms	160	250	315	400	125
	440V	DC23L/R=15ms	125	200	200	315	一
Motor power P(Kw)	380V		80	132	220	355	704
Motor power P(Kw)	660V		110	220	295	400	793
Rated short-circuit limiting current(KA Rms)	380V		100	100	100	100	100
Rated short-circuit limiting current(KA Rms)	660V		50	50	50	50	50
Rated making ability			1600	2500	4000	6300	10000
Rated breaking ability			1280	2000	3200	5000	10000
Mechanical durability(operation of cyclic times)			10000	10000	10000	5000	3000
Electric durability(operation cyclic times)			1000	1000	1000	1000	100
Operation moment	Front operation		10	12	15	42	一
Operation moment	Side operation		6	8	10	一	一
Weight(kg)	3poles		1.8	3.2	4.8	16	28
Weight(kg)	4poles		2.3	4.5	6.1	19	33

External appearance and installation dimensions
HGLR Load isolation switch

Specification	External dimension and installation dimension																Fuse dimension
In	A	B	C	D	E	F	G	H1	K	L	M	P	R	T	φ×	Y	Fuse dimension
63A/2	122	114	193	20~30	118	一	115	64	90	5	68	32	一	一	一	一	0~00
63A/3	148.5	114	193	20~30	118	一	115	96	90	5	68	32	一	一	一	一	0~00
63A/4	183.5	114	193	20~30	118	一	115	128	90	5	68	32	一	一	一	一	0~00
160/2	131	163	193.5	20~30	130	50	115	53	126	5	74	36	20	2	9	19	0~00
160/3	162	163	193.5	20~30	130	50	115	53	126	5	74	36	20	2	9	19	0~00
160/4	197.5	163	193.5	20~30	130	50	115	53	126	5	74	36	20	2	9	19	0~00
250/2	179	196	203	20~30	147	50	115	57	137	6	99	60	34	2.5	11	19	1
250/3	234	196	203	20~30	147	50	143	57	137	6	99	60	34	2.5	11	19	1
250/4	295	196	203	20~30	147	50	143	57	137	6	110	60	34	2.5	11	19	1
400/2	215	205	205	20~30	150	65	145	77	147	6	132	66	50	3	11	25	2
400/3	278.5	205	205	20~30	150	65	143	77	147	6	132	66	50	3	11	25	2
400/4	344	205	205	20~30	150	65	143	77	147	6	132	66	50	3	11	25	2

Specification	External dimension and installation dimension															Fuse dimension
In	A	B	E	F	H1	I	J	K	L	M	P	R	T	φ×	Y	Fuse dimension
63A/2	104	114	116	一	64	一	一	90	5	50	32	一	一	一	一	0~00
63A/3	130	114	116	一	96	一	一	90	5	50	32	一	一	一	一	0~00
63A/4	163.5	114	116	一	128	一	一	90	5	50	32	一	一	一	一	0~00
160/3	142	163	127	39	21	145	171	143	5	50	36	20	2.5	8.5	19	0~00
160/4	177	163	127	39	21	145	171	143	5	50	36	20	2.5	8.5	19	0~00
250/3	214	196	146	39	17.5	179	245	165	6	92	60	34	2.5	11	19	1
250/4	275	196	146	39	17.5	179	245	165	6	92	60	34	2.5	11	19	1
400/3	251	205	149	39	16	202	255	174	6	92	66	50	3	11	25	2
400/4	315	205	149	39	16	202	255	174	6	92	66	50	3	11	25	2

Specification	Extemal dimension and installation dimension																						Fuse dmensian
Specification	A	A1	B	B1	C	E	H	H1	J	J1	J2	K	M	N	P	R	S	T	U	W	ΦL	Y	Fuse dmensian
630/3	499	345	300	150	350	268	235	85	250	76	19	248	39	191	80	50	50	6	260	44.5	9	72	3
630/4	379	425	300	150	350	268	315	85	250	76	99	248	39	191	80	50	50	6	260	44.5	9	72	3