HR17 Fused Isolation Switch For High Current

The HR17 Fused Isolation Switch delivers robust circuit protection and isolation for industrial power systems, supporting 40A-800A loads at AC400-1000V with 1000V insulation and 12kV impulse withstand. This fused isolation switch complies with AC-21B/22B/23B utilization categories, ensuring reliable performance for motor control and resistive loads. Featuring 50kA short-circuit current rating (105kA peak) and low phase-breaking power consumption (5-48W), the HR17 switch combines fused protection with manual isolation in one compact unit. Ideal for high-voltage applications, it provides visible disconnect assurance and meets IEC60947-3 standards for industrial safety and durability.

product details

Type and Meaning

1	Fuse-type isolating switch
2	Design serial number
3	Conventional heating current
4	Number of poles: 2P,3P,4P
5	"1" indicates with auxiliary contacts; "0"indicates without auxiliary contacts
6	"C" indicates fixed type; "T" indicates plug-in type
7	"D" indicates with a disconnecting blade

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Technical Parameters

Specification			40	100(63)	160(100)	250	400	630	800
Rated Working Voltage (Ue)			1000V a.c 400V a.c
Rated Insulation Voltage (Ui)			1000V
Rated Impulse Withstand Voltage (Uimp)			12kV
Rated Working Current (Ie)	AC400V	AC-21B	40A	63,100A	100,160A	250A	400A	630A	800A
		AC-22B	40A	63,100A	100,160A	250A	400A	630A	800A
		AC-23B	40A	63,100A	100,160A	250A	400A	630A	800A
	AC1000V	AC-21B			100,160A	250A	400A	630A	800A
	AC1000V	AC-22B			100A	160A	400A	630A	800A
Rated Short-circuit Current			50kA (Peak 105kA)
The Phase-breaking Power Consumption under the Condition of Complying with IEC60947-3 Standard in Various Applications			5	9.5	12	23	34	48	48

Outline and Installation Dimension

HR17-40-800A Fixed Type

Model	Number of Poles	Outline Dimensions (mm)				Outline Dimensions (mm)
Model	Number of Poles	A	B	C	D	a	b	Φc
HR17-40	2P	55	116	76	150	25	-	Φ6
HR17-40	3P	76	116	76	150	42	-	Φ6
HR17-100	3P	105	116	76	150	62	-	Φ6
HR17-160	3P	106	200	83	205	66	25	Φ7
HR17-160	4P	138	200	83	205	100	25	Φ7
HR17-250	3P	185	247	110	295	114	50	Φ11
HR17-250	4P	242	247	110	295	172	50	Φ11
HR17-400	3P	210	290	125	340	130	50	Φ11
HR17-400	4P	276	290	125	340	195	50	Φ11
HR17-630	3P	256	300	145	360	162	50	Φ11
HR17-630	4P	340	300	145	360	243	50	Φ11
HR17-800	3P	256	300	145	360	162	50	Φ11
HR17-800	4P	340	300	145	360	243	50	Φ11

HR17-160-800A Plug-in Type

Model	A	B	C	D	E	F
HR17-160/30	106	200	97	60	200	87
HR17-250/30	185	247	128	88	221	110
HR17-400/30	210	290	145	97	268	125
HR17-630/30	256	300	160	112	285	139
HR17-800/30	256	300	160	112	285	139