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GREEGOO Electric Co.,Ltd.
No.6 Floor,Jinye Mansion, Lvzhuang, Liushi, Yueqing, Zhejiang, 325604 P.R. China
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Applications

- DRO-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 Features

The 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.

Model Meaning

DR	-	O	-	160
1		2		3

1. Fusegears
2. Design No.
3. Conventional free air thermal current

See in Drawing Figure 1 and Table 1~3 the products types, rated insulation voltage, rated working voltage, conventional free airthermal current, dimensions and install sizes.

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)
DRO-160	380	160A/AC22, 160A/AC23	NH00, NH000	100
	500	160A/AC22, 80A/AC23		100
	660	160A/AC21, 80A/AC23		50

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
380	160	AC21	1.5	1.05	0.95	1.5	1.05	0.95
	160	AC22	3	1.05	0.65	3	1.05	0.65
	100	AC23	10	1.05	0.45	8	1.05	0.45
500	160	AC21	1.5	1.05	0.95	1.5	1.05	0.95
	100	AC22	3	1.05	0.65	3	1.05	0.65
	50	AC23	10	1.05	0.45	8	1.05	0.45
660	100	AC21	1.5	1.05	0.95	1.5	1.05	0.95
	80	AC22	3	1.05	0.65	3	1.05	0.65
	36	AC23	10	1.05	0.45	8	1.05	0.45

Basic data of switch

Models	Rated insulation voltage (V)	Rated working voltage (V)	Conventional free air thermal current (A)	Fuse link	Weight (g)
DRO-160	690	380, 500, 660	160	NH00, NH000	1350

Dimension

Note

- I for connecting current
- U post connecting voltage
- Ie rated working current
- Ue rated working voltage
- Ic breaking current
- Ur recovery current

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