AC Three Phase Fuse Isolator Switch

Each ac three phase fuse isolator switch produced in Wenzhou XiFa electric Power Equipment Co., Ltd could provide a clear visible break point, secure isolation of circuits, and protection against short circuits and overloads. This attention to design detail minimizes risk during maintenance and daily operation. Meanwhile, WenZhou XiFa provides technical support, installation guidance, and fast response service for each sold ac three phase fuse isolator switch, to ensure that customers receive both high quality isolator switches and dependable support throughout the product’s lifecycle.

Send Inquiry

Product Description

An ac three phase fuse isolator switch combines the functions of an isolator and a fuse, offering both circuit separation and overcurrent protection. Its structural features and advantages can be summarized as follows:

Structural Features of ac three phase fuse isolator switches:

1.Contact design: The moving contact adopts an arched structure, raised in the center to match the width of the contact space. This ensures a reliable conductive path when paired with the fixed contact.

2.Integrated fuse: Equipped with built in fuses that provide overcurrent protection. When the current exceeds the rated value, the fuse element melts, immediately disconnecting the circuit.

3.Mechanical interlock: The shaft is linked with the handle, and a spring energy-storage mechanism ensures fast switching. The speed and force of operation remain consistent, independent of manual effort.

4.Protective housing: The enclosure is made of glass fiber reinforced resin, offering excellent dielectric strength and reliable insulation performance.

Advantages of ac three phase fuse isolator switches:

1.Comprehensive protection: Combines the isolating function of a switch with the overcurrent protection of a fuse, ensuring rapid response to short-circuits and overloads.

2.Safe and reliable: High breaking capacity, strong current limiting characteristics, and mechanical interlock features enhance operational safety.

3.Easy maintenance: The modular fuse design allows quick replacement of fuse elements after a fault, without the need to change the entire unit.

4.Cost effective: Well-suited for low voltage applications such as pad mounted transformers, offering stable performance at a relatively low cost.

AC Three Phase Fuse Isolator Switch

Product Parameter:

Frame Current A	Rated Current of Fuse (A)	Mode of Fuse
63	10、20、30、40、50、63	00C
160	63、80、100、125、160	0
250	160	0
250	200、250	1
400	300、315、400	2
630	400、500、630	3

the Front Type

Type	Size of Fuse	Frame Size and Installation Size
GLR-63～400A		A	B	D	E	F	H	H1	I	J	K	L	M	P	R	T	φX	Y
63A/3	0～00C	152	118	20～30	117				159	145	106	5.4	62.5	32
63A/4	0～00C	184	118	20～30	117				159	145	106	5.4	62.5	32
160A/3	0～00	164	162	28～30	126	44	108	53	141	189	127	5.4	65	36	20	2.5	8.5	19.5
160A/4	0～00	200	162	28～30	126	44	144	53	141	189	127	5.4	65	36	20	2.5	8.5	19.5
250/3	1	236	195	28～30	146	65	180	75	185	251	162	6.4	90.5	60	32	2.5	11	19.5
250/4	1	296	195	28～30	146	65	240	75	185	251	162	6.4	90.5	60	32	2.5	11	19.5
400/3	2	278	205	28～30	149	65	192	75	200	260	172	6.4	121	66	50	3	11	20
400/4	2	344	205	28～30	149	65	258	75	200	260	172	6.4	121	66	50	3	11	20

Type	Size of Fuse	Frame Size and Installation Size
GLR-400～630A		A	A1	B	B1	C	E	H	H1	H2	J	J2	J1	K	M	N	P	R	S	S1	T	V	U	W	φL	Y
400A/3	2	414	285	238	115	307	221	190	71	79	210	70	65	180	32.5	162	65	32	35	43	5	40.5	208	39.5	7	69
400A/4	2	474	345	238	115	307	221	255	71	79	210	70	65	180	32.5	162	65	32	35	43	5	24.5	208	39.5	7	69
630A/3	3	470	345	300	150	348	268	235	85	85	250	100	76	250	38.5	162	80	50	50	50	7	45.5	260	44.5	9	72
630A/4	3	550	425	300	150	348	268	315	85	85	250	100	76	250	38.5	162	80	50	50	50	7	34.5	260	445	9	72

the Aside Type

Type	Size of Fuse	Frame Size and Installation Size
GLR-63～400A		A	B	C	E	F	H	H1	I	J	K	L	M	P	R	T	φX	Y
63A/3	0～00C	133	118	134	126.5		116.5		159	145	106	5.4	36	32
63A/4	0～00C	164	118	117	126.5		116.5		159	145	106	5.4	36	32
160A/3	0～00	150	162	173	126.5	44	108	53	141	189	127	5.4	38	36	20	2.5	8.5	19.5
160A/4	0～00	186	162	173	126.5	44	144	53	141	189	127	5.4	38	36	20	2.5	8.5	19.5
250/3	1	253	195	173	146	65	180	75	185	251	162	6.4	81	60	32	2.5	11	19.5
250/4	1	313	195	173	146	65	240	75	185	251	162	6.4	81	60	32	2.5	11	19.5
400/3	2	271	205	173	149	65	192	75	200	260	172	6.4	86	66	50	3	11	20
400/4	2	337	205	173	149	65	250	75	200	260	172	6.4	86	66	50	3	11	20

Type	Size of Fuse	Frame Size and Installation Size
GLR-400～630A		A	A1	B	B1	E	H	H1	H2	J	J2	J1	K	M	N	P	R	S	S1	T	V	U	W	φL	Y
400A/3	2	500	285	238	115	221	190	70	79	210	70	65	180	32.5	119	65	32	30	43	5	40.5	208	39.5	7	69
400A/4	2	560	345	238	115	221	255	70	79	210	70	65	180	32.5	119	65	32	30	43	5	24.5	208	39.5	7	69
630A/3	3	550	345	300	150	268	235	100	85	250	100	76	250	38.5	119	80	50	50	50	7	45.5	260	44.5	9	72
630A/4	3	630	425	300	150	268	315	100	85	250	100	76	250	38.5	119	80	50	50	50	7	34.5	260	445	9	72

AC Three Phase Fuse Isolator Switch

Product Maintenance:

Q: How does the fuse function in the ac three phase fuse isolator switch?

A: The fuse element melts when the current exceeds the rated limit, cutting off the circuit immediately. This protects cables, transformers, and equipment from damage caused by overloads or short circuits.

Q: What safety features are included in the ac three phase fuse isolator switch?

A: A clear visible break point ensures operators can see the disconnection. Mechanical interlocks prevent unsafe operations, and the fuse element provides immediate fault protection.

Q: How easy is maintenance?

A: Maintenance is straightforward. The fuse module is replaceable, meaning downtime is minimal and spare parts are inexpensive compared with more complex devices.

Hot Tags: AC Three Phase Fuse Isolator Switch Manufacturer, Fuse Isolator Switch Supplier, Industrial Fuse Switch Wholesale

Related Category