This series is developed based on high-performance three-phase three-wire filters with an additional neutral wire, retaining all original functions. It is a three-phase four-wire filter, designed for three-phase four-wire power grids, frequency converters
Contact usBasic Parameters
① Rated Voltage: 380/440VAC
② Operating Frequency: 50/60Hz
③ Climate Class: 25/85/21
④ Withstand Voltage: L-N: 1500VDC / L-E: 2250VDC
⑤ Rated Current: 5~1600A
⑥ Design Standards: GB 15288, GB 15287-2008, UL1283, IEC/EN 60939
Typical Applications
Energy storage, semiconductors, UPS, switching power supplies, communication equipment, servo motors, frequency converters, variable frequency power supplies, automated electronic devices, three-phase motors, wind power and solar power inverter systems, inverters, air conditioners, water cooling systems, elevators, power supply systems and injection molding machines.
Circuit Structure Drawing
① General-purpose Three-phase Four-wire Filter

② High-performance Three-phase Four-wire Filter

Naming Convention for Three-phase Four-wire Products

Typical Insertion Loss Curve
① General-purpose Three-phase Four-wire Filter

②High-performance Three-phase Four-wire (Filter)

Three-phase Four-wire Product Selection Table
Dimensions of High-performance Three-phase Four-wire Filter
| Product Model | Drawing No. | Applicable Power (kW) | Rated Current | Dimension(±2) | ||||||
| A | B | C | D | H | I | J | ||||
| ACF411A5-T1 | ![]() | 0.75 | 5 | 75 | 86.5 | 51 | / | 38 | / | 4.5 |
| ACF411A10-T1 | 3-4 | 10 | 75 | 86.5 | 51 | / | 38 | / | 4.5 | |
| ACF411A16-T1 | 5.5 | 16 | 75 | 86.5 | 51 | / | 38 | / | 4.5 | |
| ACF411A20-F1 | ![]() | 7.5 | 20 | 184 | 202 | 70 | 86 | 58 | M4 | 6.5*9.5 |
| ACF411A36-F1 | 11-15 | 36 | 200 | 220 | 95 | 115 | 90 | M6 | 6.5*9.5 | |
| ACF411A50-F1 | 18.5-22 | 50 | 200 | 220 | 95 | 115 | 90 | M6 | 6.5*9.5 | |
| ACF411A65-F1 | 30 | 65 | 200 | 220 | 95 | 115 | 90 | M6 | 6.5*9.5 | |
| ACF411A80-S1 | ![]() | 37 | 80 | 243 | 284 | 96 | 180 | 90 | M8 | 6.5*9.5 |
| ACF411A100-S1 | 45 | 100 | 243 | 284 | 96 | 180 | 90 | M8 | 6.5*9.5 | |
| ACF411A120-S1 | 55 | 120 | 243 | 284 | 96 | 180 | 90 | M8 | 6.5*9.5 | |
| ACF411A150-S1 | 75 | 150 | 243 | 294 | 96 | 180 | 90 | M10 | 6.5*9.5 | |
| ACF411A200-S1 | 90 | 200 | 243 | 294 | 96 | 180 | 90 | M10 | 6.5*9.5 | |
| ACF411A250-B3 | ![]() | 110 | 250 | 105 | 315 | 245 | 260 | 128 | M8 | 6.5 |
| ACF411A300-B3 | 132 | 300 | 105 | 315 | 245 | 260 | 128 | M8 | 6.5 | |
| ACF411A400-B3 | 160-200 | 400 | 105 | 315 | 245 | 260 | 128 | M8 | 6.5 | |
| ACF411A600-B3 | 250-310 | 600 | 105 | 315 | 245 | 260 | 128 | M8 | 6.5 | |
| ACF411A900-B3 | 500 | 900 | 165 | 445 | 325 | 340 | 150 | M8 | 6.5 | |
| ACF411A1000-B3 | 560 | 1000 | 165 | 445 | 325 | 340 | 150 | M8 | 6.5 | |
| ACF411A1600-B3 | 900 | 1600 | 245 | 580 | 330 | 350 | 180 | M12 | 8.5 | |
Dimensions of High-Performance Three-Phase Four-Wire Filter
| Product Model | Drawing No. | Applicable Power (kW) | Rated Current | Dimension(±2) | ||||||
| A | B | C | D | H | I | J | ||||
| ACF411B5-F1 | ![]() | 0.75 | 5 | 184 | 202 | 70 | 86 | 58 | M4 | 6.5*9.5 |
| ACF411B10-F1 | 3-4 | 10 | 184 | 202 | 70 | 86 | 58 | M4 | 6.5*9.5 | |
| ACF411B16-F1 | 5.5 | 16 | 184 | 202 | 70 | 86 | 58 | M4 | 6.5*9.5 | |
| ACF411B20-F1 | 7.5 | 20 | 184 | 202 | 70 | 86 | 58 | M4 | 6.5*9.5 | |
| ACF411B36-F1 | 11-15 | 36 | 243 | 260 | 96 | 125 | 90 | M6 | 6.5*9.5 | |
| ACF411B50-F1 | 18.5-22 | 50 | 243 | 260 | 96 | 125 | 90 | M6 | 6.5*9.5 | |
| ACF411B65-F1 | 30 | 65 | 243 | 260 | 96 | 125 | 90 | M6 | 6.5*9.5 | |
| ACF411B80-S1 | ![]() | 37 | 80 | 354 | 384 | 155 | 185 | 90 | M8 | 6.5*9.5 |
| ACF411B100-S1 | 45 | 100 | 354 | 384 | 155 | 185 | 90 | M8 | 6.5*9.5 | |
| ACF411B120-S1 | 55 | 120 | 354 | 384 | 155 | 185 | 90 | M8 | 6.5*9.5 | |
| ACF411B150-S1 | 75 | 150 | 354 | 394 | 155 | 185 | 90 | M10 | 6.5*9.5 | |
| ACF411B200-S1 | 90 | 200 | 354 | 394 | 155 | 185 | 90 | M10 | 6.5*9.5 | |
| ACF411B250-B3 | ![]() | 110 | 250 | 105 | 315 | 245 | 260 | 128 | M8 | 6.5 |
| ACF411B300-B3 | 132 | 300 | 105 | 315 | 245 | 260 | 128 | M8 | 6.5 | |
| ACF411B400-B3 | 160-200 | 400 | 105 | 315 | 245 | 260 | 128 | M8 | 6.5 | |
| ACF411B600-B3 | 250-310 | 600 | 105 | 315 | 245 | 260 | 128 | M8 | 6.5 | |
| ACF411B900-B3 | 500 | 900 | 165 | 445 | 325 | 340 | 150 | M8 | 6.5 | |
| ACF411B1000-B3 | 560 | 1000 | 165 | 445 | 325 | 340 | 150 | M8 | 6.5 | |
| ACF411B1600-B3 | 900 | 1600 | 245 | 580 | 330 | 350 | 180 | M12 | 8.5 | |