You need to add a fuse to prevent overload.

You need to configure a manually manipulated molded case circuit breaker (MCCB) between the AC power supply and VFD. The breaker must be locked in the open state to facilitate installation and inspection. The capacity of the breaker needs to be 1.5 to 2 times the rated current of the VFD.

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² According to the working principle and structure   of breakers, if the manufacturer's regulation is not followed, hot ionized   gases may escape from the breaker enclosure when a short-circuit occurs. To   ensure safe use, exercise extra caution when installing and placing the   breaker. Follow the manufacturer's instructions.

To ensure safety, you can configure an electromagnetic contactor on the input side to control the switch-on and switch-off of the main circuit power, so that the input power supply of the VFD can be effectively cut off when a system fault occurs.

Table D.2 AC 3PH 380V(-15%)–440V(+10%)

VFD model

Breaker    rated current (A)

Quick    fuse (A)

Contactor rated current (A)

GD350A-1R5G/2R2P-4

6/10

10/10

9/9

GD350A-2R2G/003P-4

10/20

10/20

9/18

GD350A-004G/5R5P-4

20/25

20/35

18/25

GD350A-5R5G/7R5P-4

25/32

35/40

25/32

GD350A-7R5G/011P-4

32/50

40/50

32/38

GD350A-011G/015P-4

50/63

50/60

38/50

GD350A-015G/018P-4

63/63

60/70

50/65

GD350A-018G/022P-4

63/80

70/90

65/80

GD350A-022G/030P-4

80/100

90/125

80/80

GD350A-030G/037P-4

100/125

125/125

80/98

GD350A-037G/045P-4

125/140

125/150

98/115

GD350A-045G/055P-4

140/180

150/200

115/150

GD350A-055G/075P-4

180/225

200/250

150/185

GD350A-075G-/090P4

225/250

250/300

185/225

GD350A-090G/110P-4

250/315

300/350

225/265

GD350A-110G/132P-4

315/400

350/400

265/330

GD350A-132G/160P-4

400/500

400/500

330/400

GD350A-160G/185P-4

500/500

500/600

400/400

GD350A-185G/200P-4

500/630

600/600

400/500

GD350A-200G/220P-4

630/630

600/700

500/500

GD350A-220G/250P-4

630/700

700/800

500/630

GD350A-250G/280P-4

700/800

800/1000

630/630

GD350A-280G/315P-4

800/1000

1000/1000

630/800

GD350A-315G/355P-4

1000/1000

1000/1000

800/800

GD350A-355G/400P-4

1000/1000

1000/1200

800/1000

GD350A-400G/450P-4

1000/1250

1200/1200

1000/1000

GD350A-450G/500P-4

1250/1250

1200/1400

1000/1000

GD350-500G-4

1250

1400

1000

 

Note: The accessory specifications described in the preceding table are ideal values. You can select accessories based on the actual market conditions, but try not to use those with lower values.


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