H.V. & L.V. Fuse Link & Base

H1 Fuse Switch Disconnector

DRO

H1 series of fuse disconnecting switch, are mainly used in circus with high short-circuit current and motor circuit as power switch, disconnecting switch or emergency switch.
Rated insulation voltage up to AC 50Hz 800V; Rated working voltage up to 690V; Rated working current up to 250A; Rated short-time withstand current (valid): 20Ith/1S. The switch complies with GB14048.3 and IEC/EN60947-3.

The switch with half sealed structures is made up of two parts: the seat and cover (fuse holder). Through the window in the cover, it can observe the rated data of the fuse links and indicator status.
The switch should be matched with the appropriate size of fuse links accordingly. H1-160/1 is single-pole and H1-160 is three-pole, both can be matched with size NH000 and NH00 fuse links, H1-250/1, H1-400/1, H1-630/1 are single-pole and H1-250, H1-400, H1-630 are three-pole, They are matched with NH1, NH2, NH3 fuse links separately. The three-pole switch can be combined with the single-pole version with the same size into four-pole switch.
The switch has the features of small size, reliable operation, convenient installation and removal.
All of these products, except for conductive parts all are the finger-touch protection: IP20.
Compliance with GB14048.3 and IEC/EN60947-3.

Table 4 Basic data of switch

Models	Rated insulation voltage (V)	Rated working voltage (V)	Conventional free air thermal current (A)	Fuse link	Weight (g)	Dimension (mm)
H1-160/1	800	400, 500, 690	160	NH00, NH000	290	Figure 2
H1-160	800	400, 500, 690	160	NH00, NH000	700	Figure 3
H1-160/4	800	400, 500, 690	160	NH00, NH000	990	Figure 3
H1-250/1	800	400, 500, 690	250	NH1	735	Figure 4
H1-250	800	400, 500, 690	250	NH1	1510	Figure 5
H1-250/4	800	400, 500, 690	250	NH1	2245	Figure 5
H1-400/1	800	400, 500, 690	400	NH2	1302	Figure 6
H1-400	800	400, 500, 690	400	NH2	3272	Figure 7
H1-400/4	800	400, 500, 690	400	NH2	4574	Figure 7
H1-630/1	800	400, 500, 690	630	NH3	1492	Figure 6
H1-630	800	400, 500, 690	630	NH3	3855	Figure 7
H1-630/4	800	400, 500, 690	630	NH3	5347	Figure 7

Figure 2 (H1-160/1)

Figure 3 (H1-160, H1-160/4)

Figure 4 (H1-250/1)

Figure 5 (H1-250, H1-250/4)

Figure 6 (H1-400/1, H1-630/1)

Figure 7 (H1-400, H1-400/4, H1-630, H1-630/4)

Table 5 The working current of the switch at different voltages and different applications

Models	Rated working voltage (V)	Rated working current (A)	Application	Fuse link	The rated breaking capacity of the fuse links (KA)
H1-160/1	690	100	AC21B	NH00, NH000	50
	500	125	AC22B	NH00	100
	230/400	160	AC23B	NH00	100
H1-160 H1-160/4	690	100	AC21B	NH00, NH000	50
	500	125	AC22B	NH00	100
	230/400	160	AC23B	NH00	100
H1-250/1	690	160	AC21B	NH1	50
	500	200	AC22B	NH1	100
	230/400	250	AC23B	NH1	100
H1-250 H1-250/4	690	160	AC21B	NH1	50
	500	200	AC22B	NH1	100
	230/400	250	AC23B	NH1	100
H1-400/1	690	250	AC21B	NH2	50
	500	315	AC22B	NH2	100
	230/400	400	AC23B	NH2	100
H1-400 H1-400/4	690	250	AC21B	NH2	50
	500	315	AC22B	NH2	100
	230/400	400	AC23B	NH2	100
H1-630/1	690	400	AC21B	NH3	50
	500	500	AC22B	NH3	100
	230/400	630	AC23B	NH3	100
H1-630 H1-630/4	690	400	AC21B	NH3	50
	500	500	AC22B	NH3	100
	230/400	630	AC23B	NH3	100

Table 6 Rated open and breaking capacity of the switch

Rated working voltage (V)	Rated working current (A)	Application	The rated breaking capacity of the fuse links (KA)
			Connecting			Breaking
			I/Ie	U/Ue	COSΦ	Ic/Ie	Ur/Ue	COSΦ
690	All current	AC21B	1.5	1.05	0.95	1.5	1.05	0.95
500	All current	AC22B	3	1.05	0.65	3	1.05	0.65
400	≤100	AC23B	10	1.05	0.45	8	1.05	0.45
400	>100	AC23B	10	1.05	0.35	8	1.05	0.35

Note: