Fuse disconnecting switch are mainly used in circuitswith high short-circuit current and motor circuit as power switch...

Fuse Switch Disconnector

ApplicationsDRO-160 fuse disconnecting switch are mainly used in circuitswith high short-circuit current and motor circuit as power switch,disconnecting switch or emergency switch. Rated insulate votlage up to 50Hz AC, 690V; Rated workingvoltage up to 660V; Rated working current up to 160A; Ratedshort-time withstand current (valid): 3.2KA/1S. The fusedisconnecting switch complies with GB14048.3 and IEC947-3. Design FeaturesThe switch with three-phase and half sealed structures ismade up of two parts: the seat and the cover (melt-loading device).The front operation can observe the rated data of the fuse links andindicator status. The switch can be matched with NH000 andNH00 fuse. The switch has features of small volume, reliableoperation, convenient fuse install and removal and small-requiredmanual operation power.

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)
DRO-160	690	380, 500, 660	160	NH00, NH000	1350	Figure 1

ApplicationsH1 series of fuse disconnecting switch, are mainly used incircus with high short-circuit current and motor circuit as powerswitch, disconnecting switch or emergency switch. Rated insulation voltage up to AC 50Hz 800V; Rated workingvoltage up to 690V; Rated working current up to 250A; Ratedshort-time withstand curent (valid): 20Ith/1S. The switch complieswith GB14048.3 and IEC/EN60947-3 . Design FeaturesThe 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 apropriate size of fuse links accordingly. H1-160/1 is single-pole and H1-160 is three-pole, both ca 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

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