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.
| 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.