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.
| • Due to the inherent operating principle and construction of circuit breakers, independent of the manufacturer, hot ionized gases may escape from the breaker enclosure in case of a short-circuit. To ensure safe use, special attention must be paid to the installation and placement of the breakers. 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.
D.5.1 The VFDs of AC 3PH 380V (-15%)–440V(+10%)
Model | Fuse (A) | Breaker (A) | The rated working current of the contactor(A) |
GD300-1R5G-4 | 15 | 16 | 10 |
GD300-2R2G-4 | 17.4 | 16 | 10 |
GD300-004G-4 | 30 | 25 | 16 |
GD300-5R5G-4 | 45 | 25 | 16 |
GD300-7R5G-4 | 60 | 40 | 25 |
GD300-011G-4 | 78 | 63 | 32 |
GD300-015G-4 | 105 | 63 | 50 |
GD300-018G-4 | 114 | 100 | 63 |
GD300-022G-4 | 138 | 100 | 80 |
GD300-030G-4 | 186 | 125 | 95 |
GD300-037G-4 | 228 | 160 | 120 |
GD300-045G-4 | 270 | 200 | 135 |
GD300-055G-4 | 315 | 200 | 170 |
GD300-075G-4 | 420 | 250 | 230 |
GD300-090G-4 | 480 | 315 | 280 |
GD300-110G-4 | 630 | 400 | 315 |
GD300-132G-4 | 720 | 400 | 380 |
GD300-160G-4 | 870 | 630 | 450 |
GD300-200G-4 | 1110 | 630 | 580 |
GD300-220G-4 | 1230 | 800 | 630 |
GD300-250G-4 | 1380 | 800 | 700 |
GD300-280G-4 | 1500 | 1000 | 780 |
GD300-315G-4 | 1740 | 1200 | 900 |
GD300-350G-4 | 1860 | 1280 | 960 |
GD300-400G-4 | 2010 | 1380 | 1035 |
GD300-500G-4 | 2505 | 1720 | 1290 |
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.
D.5.2 AC 3PH 380V(-10%)V–550V(+10%)
Model | Fuse (A) | Breaker (A) | The rated working current of the contactor(A) |
GD300-004G-5 | 30 | 25 | 16 |
GD300-5R5G-5 | 30 | 25 | 16 |
GD300-7R5G-5 | 45 | 25 | 16 |
GD300-011G-5 | 60 | 40 | 25 |
GD300-015G-5 | 78 | 63 | 32 |
GD300-018G-5 | 105 | 63 | 50 |
GD300-022G-5 | 114 | 100 | 63 |
GD300-030G-5 | 186 | 125 | 95 |
GD300-037G-5 | 186 | 125 | 95 |
GD300-045G-5 | 228 | 160 | 120 |
GD300-055G-5 | 315 | 200 | 170 |
GD300-075G-5 | 315 | 200 | 170 |
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.
D.5.3 The VFDs of AC 3PH 520V(-15%)–690V(+10%)
Model | Fuse (A) | Breaker (A) | The rated working current of the contactor(A) |
GD300-022G-6 | 105 | 63 | 50 |
GD300-030G-6 | 105 | 63 | 50 |
GD300-037G-6 | 114 | 100 | 63 |
GD300-045G-6 | 138 | 100 | 80 |
GD300-055G-6 | 186 | 125 | 95 |
GD300-075G-6 | 270 | 200 | 135 |
GD300-090G-6 | 270 | 200 | 135 |
GD300-110G-6 | 315 | 200 | 170 |
GD300-132G-6 | 420 | 250 | 230 |
GD300-160G-6 | 480 | 315 | 280 |
GD300-185G-6 | 480 | 315 | 280 |
GD300-200G-6 | 630 | 400 | 315 |
GD300-220G-6 | 720 | 400 | 380 |
GD300-250G-6 | 720 | 400 | 380 |
GD300-280G-6 | 870 | 630 | 450 |
GD300-315G-6 | 1110 | 630 | 580 |
GD300-350G-6 | 1110 | 630 | 580 |
GD300-400G-6 | 1230 | 800 | 630 |
GD300-500G-6 | 1500 | 1000 | 780 |
GD300-560G-6 | 1740 | 1200 | 900 |
GD300-630G-6 | 2010 | 1380 | 1035 |
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.