100 Amp 3 Phase Isolator Switch 100a

A 100 amp 3 phase isolator switch 100a is a switching device designed for three phase AC systems. It is primarily used for circuit isolation and for making or breaking circuits under no-load conditions.

Core Functions

1.Circuit Isolation: Safely connects or disconnects circuits under no load conditions, to ensure safe maintenance.

2.Operational Adjustment: Works in coordination with circuit breakers to change the operating status of equipment.

3.No Load Operations: Enables switching of unloaded lines or unloaded transformers in and out of service.

4.Visible Break Point: Provides a clear disconnection point, to make inspection and maintenance straightforward.

Technical Features

1.Optimized Structure: 100 amp 3 phase isolator switch 100a adopts a single operating mechanism. The arched moving contacts and fixed contacts operate in unison, to ensure simultaneous switching of all three phases. This reduces contact travel deviation and improves reliability.

2.Ease of Installation and Maintenance: The compact design of 100 amp 3 phase isolator switch 100a allows for convenient installation and keeps maintenance costs low.

Product Parameter:

lth (A)	125A	160A	200A	250A	315A	400A	500A	630A	1000A	1250A	1600A	2000A	2500A	3150A	4000A
Ui(V)	750	750	750	750	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000
Dielectric strength (V)	5000	5000	5000	5000	8000	8000	8000	8000	10000	10000	10000	10000	10000	10000	10000
Uimp (KV)	8	8	8	8	12	12	12	12	12	12	12	12	12	12	12
Working Current le(A)
400V AC21B	125	160	200	250	315	400	500	630	1000	1250	1600	2000	2500	3150	4000
400V AC22B	125	160	200	250	315	400	500	630	1000	1250	1600	2000	2500	2500	2500
400V AC23B	125	160	200	250	315	340	425	500	800	1000	1250	1250	1250	1250	1250
750V AC21B	125	160	160	200	315	400	400	500	1000	1000	1600	2000	2500	3150	4000
750V AC22B	125	160	160	160	315	315	315	315	800	800	800	2000	2000	2000	2000
750V AC23B	80	80	100	125	125	125	125	125	400	400	500	1000	1000	1000	1000
220V DC21	125	160	200	250	315	400	500	630
220V DC22	125	160	200	250	315	400	400	500
220V DC23	125	125	160	200
440V DC21	100	125	160	200	315	400	400	500
440V DC22	100	125	160	200	315	400	400	500
440V DC23	100	125	160	200
Motor Power(KW)
400V	63	80	100	132	160	220	280	315	560	560	560	710	710	710	710
750V	75	75	90	110	185	185	185	185	475	475	475	750	750	750	750
lcw (KA Rms,0.1S/1.0S)	20/10	20/10	30/12	30/12	45/20	45/20	50/25	50/25	90/50	90/50	90/50	90/50	90/50	90/50	90/50
Making and Breaking Capacity
lcn(A Rms) AC23B 400V	1250	1250	2000	2000	3150	4000	4000	4000	10000	10000	10000	10000	10000	10000	10000
lcm(A Rms) AC23B 400V	1000	1000	1600	1600	2500	3200	3200	3200	8000	8000	8000	8000	8000	8000	8000
lcm(KA Peak Value)	12	12	17	17	30	30	40	40	70	70	70	70	70	70	70
Mechanical Life (times)	10000	10000	10000	10000	5500	5500	5500	5500	4000	4000	3000	2500	2500	2500	2500
Electrical Life (times)
Ue=660V Rated Current le
COS∮＝0.95 AC21B	1500	1500	1500	1500	750	750	750	750	600	600	450	400	400	350	350
COS∮＝0.65 AC22B	1000	1000	1000	1000	500	500	500	500	400	400	300	200	200	200	200
COS∮＝0.35 AC23B	500	500	500	500	250	250	250	250	200	200	150	100	100	100	100
Weight (kg)
3 poles	1	1	2	2	3.5	3.5	4	4	10.5	10.5	16	31	31	42	90
4 poles	1.5	1.5	2.5	2.5	4	4	4.5	4.5	13	13	20	40	40	49	102
Operating Torque(Nm)	6.5	6.5	10	10	14.5	14.5	14.5	14.5	27	27	27	60	60	60	110

Type	Frame Size and Installation Size
GL-125～630A	A	B	C	D	D1	E	φL	J	J1	K	N	P	R	S	T	U	φX	Y	F	H
125A-160A/3	140	135	125	27	92	73	6	120	120	65	85	36	20	25	4	115	9	25	59	10
125A-160A/4	170	135	125	27	92	73	6	150	150	65	85	36	20	25	4	115	9	25	59	10
200A-250A/3	180	170	138	35	98	86	6	160	160	90	115	50	25	30	4	140	11	25	76	15
200A-250A/4	230	170	138	35	98	86	6	210	210	90	115	50	25	30	4	140	11	25	76	15
315A-400A/3	230	240	165	50	135	110	7	210	210	140	145	65	32	40	5	206	11	37	94	20
315A-400A/4	290	240	165	50	135	110	7	275	275	140	145	65	32	40	5	206	11	37	94	20
500A-630A/3	230	260	165	50	135	110	7	210	210	140	145	65	40	50	6	220	13	37	94	20
500A-630A/4	290	260	165	50	135	110	7	275	275	140	145	65	40	50	6	220	13	37	94	20

Type	Size
GL-125～630A	I	M	Z	W	Q
125A	55	5.5	85	190	218
160A	55	5.5	85	190	218
200A	55	5.5	85	190	218
250A	55	5.5	85	190	218
315A	60	6.5	130	240	270
400A	60	6.5	130	240	270
500A	60	6.5	130	240	270
630A	60	6.5	130	240	270

Type	Frame Size and Installation Size
GL-1000～4000A	A	B	J	J1	N	R	S	T	Y
1000-1250A/3	378	312	355	355	186	60	56	8	48
1000-1250A/4	492	312	470	470	248	60	56	8	48
1600A/3	378	338	355	355	186	80	69	8	49
1600A/4	492	338	470	470	248	80	69	10	49
2000-2500A/3	378	455	355	355	186	80	127	10	78.5
2000-2500A/4	492	455	470	470	248	80	127	10	78.5
3150-4000A/3	378	514	355	355	186	120	157	12	78.5
3150-4000A/4	492	514	470	470	248	120	157	12	78.5

Product FAQ:

Q: Can the 100 amp 3 phase isolator switch 100a be operated under load?
A: No. The 100 amp 3 phase isolator switch 100a is intended for use under no load conditions. It should not be used to make or break circuits carrying normal operating current. For load switching, a circuit breaker or load break switch should be used.
Q: What materials are commonly used in a 100 amp 3 phase isolator switch 100a?
A: High quality 100 amp 3 phase isolator switches generally feature flame retardant or reinforced thermoplastic/metal housings, copper or silver plated copper contacts for low resistance and durability, and robust steel or alloy operating mechanisms. These ensure long service life and reliable operation.
Q: How does a 100 amp 3 phase isolator switch 100a differ from a 100 amp 3 phase circuit breaker?
A: A 100 amp 3 phase circuit breaker can interrupt load and fault currents, whereas a 100 amp 3 phase isolator switch only provides disconnection under no load conditions. The a 100 amp 3 phase’s role is to guarantee a visible, reliable separation for safety, while protection functions remain with fuses or breakers.