HG2B In-line Fuse Switch Disconnector

HG2B In-line Fuse Switch Disconnector is suitable for AC rated voltage 660V and below, AC 160A~630A, rated AC frequency 50Hz. With load operation, the first current transformer and bar switch integration, with the advantages of convenient adjustment of upper-lower inlet-outlet, three-phase separate breaking, three phase simultaneous breaking and others, widely used in complete sets of products and imported box substation.

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Product Description

Scope of application

In the distribution system of industrial enterprises, it is mainly used in distribution circuits and motor circuits with high short-circuit currents, which can be used to manually switch on and off the circuit infrequently and isolate the power supply, and can protect the AC circuit from short circuit. The In-line Fuse Switch Disconnector is not suitable for starting and disconnecting a single motor switch. Meet the standards: GB14048.3, IEC60947-3.

Model and meaning

Normal working conditions and installation conditions

1. The ambient air temperature is not higher than +40°C and not lower than -5°C.

2. The elevation of the installation site does not exceed 2000m.

3. Humidity: When the maximum temperature is +40°C, the relative humidity of the air does not exceed 50%, and higher relative humidity may be allowed at lower temperatures, for example, 90% at 20°C. Special measures should be taken for the occasional condensation caused by temperature changes.

4. The pollution level of the surrounding environment is 3.

5. The In-line Fuse Switch Disconnector shall be installed in a place where there is no significant shaking, shock and vibration and there is no rain and snow. At the same time, there shall be no dangerous medium for explosion at the installation site, and there shall be no gas and dust in the medium that can corrode metal and destroy insulation.

Product Features

■ First integration of current transformer and fuse switch

■ With knife edge and arc extinguishing device, it is safe to operate

■ Isolated blade, NT/NH series and common semiconductor melt core (quick melt) can be added

■ Fuse monitor and signal switch can be added

■ Used as main switch, instantaneous breaking capacity up to 50-100kA

■ DNH5 strip fuse type isolation switch with unique process technology

■ The In-line Fuse Switch Disconnector is beautiful in appearance, novel and concise, and conforms to the IEC60947-3.GB14048.3 standard.

Structure and characteristics

The In-line Fuse Switch Disconnector consists of a base, a pedestal, a cover, a handle, a protective cover and others. The NT series fuse link is mounted on the cover and used as a movable contact blade; The handle rotates along the fulcrum of the base in fan-shaped, and the cover is broken and closed together with the fuse. There is a large space distance and clear breaking point to meet the requirements of the isolation switch. The pedestal and the base can be easily disassembled, so that the pedestal is installed on the bus bar safely and reliably. The base is equipped with an arc extinguishing grid to ensure the breaking capacity of the switch.

Main technical parameters

					HG2B-160/100	HG2B-250	HG2B-400	HG2B-630
Electrical parameters	With fuse	Rated operational voltage	Ue	V	AC380V	AC380V	AC380V	AC380V
		Rated operational current		A	160	250	400	630
		Conventional thermal current		A	160	250	400	630
		Rated limited short-circuit current		KA	50	50	50	50
		Rated insulation voltage		V	690	690	690	690
		Rated impulse withstand voltage		KV	8	8	8	8
		Use grade			AC-21B	AC-21B	AC-21B	AC-21B
	With isolation knife	Rated operational voltage	Ue	V	\	AC240V	AC400V	AC400V
		Rated operational current	Ie	A	\	250	400	630
		Conventional thermal current	Ith	A	\	250	400	630
		Rated limited short-circuit current	Icw	KA	\	16	16	16
		Rated insulation voltage	Ui	V	\	1000	1000	1000
		Rated impulse withstand voltage	Uimp	KV	\	12	12	12
		Use grade			\	AC-22B	AC-22B	AC-22B
	Common parameters	Rated frequency		HZ	50/60	50/60	50/60	50/60
		Pole			3	3	3	3
		Rated making capacity		A	10Ie
		Rated breaking capacity		A	8Ie
		Weight		kg	1.66	8.64	8.64	9.42
Fuse		Size (RT16\NT\NH) IEC60269-2, GB13539.2			00	1	2	3
		Operating current	In	A	160	250	400	630
		Power Consumption	P	W	12	18	28	40
Mechanism		Mechanical life		times	1400	1400	800	800
Mechanism		Busbar spacing		mm	100	185	185	185
Protection		Front	ON		IP20	IP20	IP20	IP20
Protection			OFF		IP30	IP30	IP30	IP30
Others		Electronic fuse monitor (EFM)			Can be added	Can be added	Can be added	Can be added
Others		ON-OFF signal feedback (micro switch)			Can be added	Can be added	Can be added	Can be added
Working conditions		Temperature		℃	-5~+55
		Working mode			Continuous work
		Operation			Handle
		Installation Mode			Vertical
		Altitude		m	≤2000
		Pollution level			3
		Overvoltage Grade			Ⅲ	Ⅳ

The relationship between the switch and the fuse link

Conventional thermal current Ith	Fuse link code	Rated current of fuse link (A)
160A	NT00	10, 16, 25, 32, 40, 50, 63, 80, 100, 125, 160
250A	NT3	200, 250
400A	NT3	315, 355, 400
630A	NT3	425, 500, 630

Note: NT3-200, 250A fuse is non-standard, please contact our company to order or customize.

Outline and Installation Dimensions

Outline and Installation Dimensions of HG2B-160~630A In-line Fuse Switch Disconnector.

Model		A	B	C	D	h	a
HG2B-160	Three-phase	448	49	120	205	50	100
	With copper	448	49	120	205	50	185
	Single-phase	650	49	150	230	90	185
HG2B-250, 400, 630	Three-phase	764	98	195	457	105	185
HG2B-250, 400, 630	Single-phase	764	98	195	300	105	185