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Model Segment Definition
| Model Segment | Description |
| VFD | Prefix for Delta inverter product |
| 550 | Motor power rating (55kW, equivalent to 75HP) |
| C | Series code (C2000 / C2000+ Series) |
| 43 | Voltage class (3-phase 380-480V) |
| A | Control type (Vector Control, including FOC Flux Oriented Control) |
| 0 | Special configuration code (Standard type, without EMC filter, IP00 protection rating) |
| -55KW | Supplementary power marking (55 kilowatts) |
- Core Specification Parameters
| Parameter Category | Specifications |
| Basic Info | Delta C2000/C2000+ High-performance Vector Control Inverter, Made in Taiwan |
| Rated Power | 55kW (75HP), Heavy-duty design |
| Rated Output Current | 110A (Heavy Duty), 120A (Light Duty) |
| Input Voltage | 3-phase AC 380-480V (-15%~+10%), 50/60Hz |
| Output Voltage | 3-phase, proportional to input voltage (0 ~ Input Voltage) |
| Control Modes | V/F Control, Sensorless Vector Control, PG Feedback Vector Control, Torque Control |
| Overload Capacity | 150% rated current for 60s, 200% rated current for 3s |
| Protection Class | IP00 (Open Type), Chassis Mount |
| Communication Interface | Standard RS-485, supports Modbus RTU; Optional PROFIBUS-DP, DeviceNet, EtherNet/IP and other industrial networks |
| Built-in Functions | 10K-step PLC, PID Controller, Energy Saving Mode, Automatic Torque Boost, Slip Compensation, Multi-speed Control (max. 16 speeds) |
| Dimension & Weight | Approx. W300mm × H500mm × D250mm, Weight approx. 35kg (refer to actual product) |
| Cooling Method | Forced Air Cooling |
- Accessory List (Standard Configuration)
- Inverter Main Unit (VFD550C43A-00)
- Keypad Panel (with basic parameter setting function)
- Installation Manual & User Manual (Paper + Electronic Version)
- Quick Start Guide
- Warranty Card & Certificate of Conformity
- Fastener Screw Kit
- Built-in Cooling Fan
- Control Terminal Cover
- Competitor & Cross-brand Replacement List
| Brand | Equivalent Model | Power / Current | Main Differences |
| Siemens | 6SL3224-0BE35-5UA0 | 55kW / 110A | Higher price, PROFIBUS-DP standard, IP20 protection |
| Schneider | ATV320U55N4 | 55kW / 110A | Compact size, built-in EMC filter, moderate price |
| ABB | ACS580-01-12A7-4 | 55kW / 110A | Higher energy efficiency grade, built-in braking unit, higher price |
| Mitsubishi | FR-A840-05620-2-60 | 55kW / 110A | Fast response speed, no built-in PLC, moderate price |
| Yaskawa | CIMR-HB4A0110ABC | 55kW / 110A | High torque control accuracy, higher price |
- Selection Guidelines & Replacement Solutions
Selection Guidelines
- Load Type Matching
Suitable for constant torque / variable torque loads such as fans, water pumps, compressors and conveyors; heavy-duty design applicable to impact loads.
- Environmental Conditions
Ambient Temperature: -10℃ ~ +40℃ (Derating required above 40℃)
Relative Humidity: 0~95% (Non-condensing)
Altitude: ≤1000m (Derating required above 1000m)
- Optional Function Requirements
With EMC filter: Select model VFD550C43A-21
With built-in braking unit: Select model VFD550C43A-41
Higher protection level: Select enclosed type (e.g. IP20)
Replacement Solutions
- Same-brand Upgrade Replacement
C2000+ Series: VFD550C43A-00 (Performance upgraded, supports more communication protocols)
CP2000 Series: VFD550CP43A-00 (Economical type, simplified functions)
- Power Adjustment Scheme
Light-duty application: Adopt 45kW model VFD450C43A-00 for cost saving
Heavy-duty / impact load: Recommend 60kW model VFD600C43A-00 for sufficient margin
- Function Expansion Scheme
Install communication expansion card for Industrial Ethernet connection
Install PG card for closed-loop vector control and higher precision
Install braking resistor for fast stop and protection of inverter & motor
- Application Scenarios
HVAC System (Fan & Water Pump Control)
Water Treatment Industry (Water Pump & Mixer Control)
Manufacturing Production Line (Conveyor & Machine Tool Spindle Control)
Mining Machinery (Conveyor & Crusher Control)
Compressor Control (Screw & Centrifugal Compressor)
- Key Features Summary
- High-performance Vector Control
Supports sensorless vector control, outputs 150% rated torque at 0.5Hz.
- Excellent Energy Saving
Built-in energy saving mode, reduces power consumption by 10~30% compared with traditional control.
- Flexible Communication
Supports multiple industrial networks, easy integration into automation systems.
- Comprehensive Protection
Multiple protections including overcurrent, overvoltage, undervoltage, overheating, phase loss and earth fault.
- Built-in PLC Function
10K-step programming capacity, realizes simple logic control and reduces external PLC dependency.
Delta VFD Inverter Model List & Cross-brand Comparison
- Delta VFD Inverter Naming Rule (General Version)
| Segment | Example Format | Description |
| VFD | VFD | Fixed prefix for Delta inverters |
| Power / Current Code | 004/007/015/022/037 /055/075/110/150/185/220 /300/370/450/550/750 | 004=0.4kW, 007=0.75kW, 015=1.5kW, 022=2.2kW … 550=55kW, 750=75kW |
| Series Code | C/E/EL/MH/MS/ME /MX/CH/CP/CFP | C=C2000, E=VFD-E, EL=VFD-EL, MH=MH300, MS=MS300, ME=ME300, MX=MX300, CH=CH2000, CP=CP2000, CFP=CFP2000 |
| Voltage Class | 21/43 | 21=Single-phase 220V, 43=3-phase 380-480V |
| Control Type / Protection Grade | A/N | A=Vector Control, N=V/F Control; some series indicate protection grade (e.g. IP20) |
| Special Configuration | -00/-21/-41/-S/-N | -00=Standard (no EMC filter), -21=With EMC filter, -41=With built-in braking unit, -S=With STO safety function, -N=Without EMC filter |
| Supplementary Mark | -XXkW/HP | Explicit power labeling (e.g. -55kW) |
- Full Range Delta VFD Inverter Model List
- Compact Series (0.1kW~15kW)
| Power | Single-phase 220V Model | 3-phase 380V Model | Features |
| 0.4kW | VFD004EL21A | — | Compact size, built-in PLC, IP20 |
| 0.75kW | VFD007EL21A | VFD007EL43A | |
| 1.5kW | VFD015EL21A | VFD015EL43A | |
| 2.2kW | VFD022EL21A | VFD022EL43A | |
| 3.7kW | — | VFD037EL43A | |
| 5.5kW | — | VFD055EL43A | |
| 7.5kW | — | VFD075EL43A |
(2) ME300 Series (Ultra-compact General Inverter)
| Power | 3-phase 380V Model | Features |
| 0.75kW | VFD007ME43A | 60% smaller size, supports IPM/SPM motor, built-in multi-pump control |
| 1.5kW | VFD015ME43A | |
| 2.2kW | VFD022ME43A | |
| 3.7kW | VFD037ME43A | |
| 5.5kW | VFD055ME43A | |
| 7.5kW | VFD075ME43A | |
| 11kW | VFD110ME43A | |
| 15kW | VFD150ME43A |
(3) MS300 Series (Compact General-purpose Inverter)
| Power | 3-phase 380V Model | Features |
| 0.75kW | VFD007MS43ANSAA | Built-in STO, supports PMSM, IP20 |
| 1.5kW | VFD015MS43ANSAA | |
| 2.2kW | VFD022MS43ANSAA | |
| 3.7kW | VFD037MS43ANSAA | |
| 5.5kW | VFD055MS43ANSAA | |
| 7.5kW | VFD075MS43ANSAA | |
| 11kW | VFD110MS43ANSAA | |
| 15kW | VFD150MS43ANSAA |
(4) MH300 Series (High-performance Compact Inverter)
| Power | 3-phase 380V Model | Features |
| 0.75kW | VFD007MH43A | High starting torque, supports multiple motor types |
| 1.5kW | VFD015MH43A | |
| 2.2kW | VFD022MH43A | |
| 3.7kW | VFD037MH43A | |
| 5.5kW | VFD055MH43A | |
| 7.5kW | VFD075MH43A | |
| 11kW | VFD110MH43A | |
| 15kW | VFD150MH43A |
- Standard Series (0.75kW~630kW)
(1) C2000/C2000+ Series (High-performance Vector Inverter)
| Power | 3-phase 380V Model | Features |
| 5.5kW | VFD055C43A-00 | Vector control, 150% torque at 0.5Hz, built-in 10K-step PLC |
| 7.5kW | VFD075C43A-00 | |
| 11kW | VFD110C43A-00 | |
| 15kW | VFD150C43A-00 | |
| 18.5kW | VFD185C43A-00 | |
| 22kW | VFD220C43A-00 | |
| 30kW | VFD300C43A-00 | |
| 37kW | VFD370C43A-00 | |
| 45kW | VFD450C43A-00 | |
| 55kW | VFD550C43A-00 | Heavy-duty type, 110A rated current, IP00 |
| 75kW | VFD750C43A-00 | |
| 90kW | VFD090C43A-00 | |
| 110kW | VFD110C43A-00 |
(2) CH2000 Series (Heavy-duty Vector Inverter)
| Power | 3-phase 380V Model | Features |
| 11kW | VFD110CH43A-00 | Heavy-duty design, 200% overload for 60s, suitable for impact loads |
| 15kW | VFD150CH43A-00 | |
| 18.5kW | VFD185CH43A-00 | |
| 22kW | VFD220CH43A-00 | |
| 30kW | VFD300CH43A-00 | |
| 37kW | VFD370CH43A-00 | |
| 45kW | VFD450CH43A-00 | |
| 55kW | VFD550CH43A-00 | |
| 75kW | VFD750CH43A-00 | |
| 90kW | VFD090CH43A-00 | |
| 110kW | VFD110CH43A-00 | |
| 132kW | VFD132CH43A-00 |
(3) CP2000 Series (Economical Vector Inverter)
| Power | 3-phase 380V Model | Features |
| 5.5kW | VFD055CP43A-00 | Simplified functions, cost-effective, for general applications |
| 7.5kW | VFD075CP43A-00 | |
| 11kW | VFD110CP43A-00 | |
| 15kW | VFD150CP43A-00 | |
| 18.5kW | VFD185CP43A-00 | |
| 22kW | VFD220CP43A-00 | |
| 30kW | VFD300CP43A-00 | |
| 37kW | VFD370CP43A-00 | |
| 45kW | VFD450CP43A-00 | |
| 55kW | VFD550CP43A-00 |
- Industry Special Series
(1) VFD-VE Series (Fan & Pump Special Inverter)
| Power | 3-phase 380V Model | Features |
| 15kW | VFD150VE43A-00 | Built-in PID, sleep/wake function, multi-pump control |
| 18.5kW | VFD185VE43A-00 | |
| 22kW | VFD220VE43A-00 | |
| 30kW | VFD300VE43A-00 | |
| 37kW | VFD370VE43A-00 | |
| 45kW | VFD450VE43A-00 | |
| 55kW | VFD550VE43A-00 | |
| 75kW | VFD750VE43A-00 |
(2) VFD-VJ Series (Plastics & Rubber Special Inverter)
| Power | 3-phase 380V Model | Features |
| 15kW | VFD150VJ43A-00 | Tension control & synchronous control, suitable for extruders |
| 18.5kW | VFD185VJ43A-00 | |
| 22kW | VFD220VJ43A-00 | |
| 30kW | VFD300VJ43A-00 | |
| 37kW | VFD370VJ43A-00 |
- Cross-brand Comparison Table (5.5kW~55kW Main Models)
| Delta Model | Siemens | Schneider | ABB | Mitsubishi | Yaskawa |
| 5.5kW | |||||
| VFD055C43A-00 | 6SL3224-0BE31-5UA0 (G120C) | ATV320U07N4 | ACS580-01-014A-4 | FR-A840-00860-2-60 | CIMR-HB4A0018ABC |
| VFD055ME43A | 6SL3210-5BB17-5UV1 (G110M) | ATV310HU07N4 | ACS150-03E-01A9-4 | FR-D740-00860-2-60 | CIMR-JB4A0018ABC |
| 11kW | |||||
| VFD110C43A-00 | 6SL3224-0BE32-2UA0 (G120C) | ATV320U11N4 | ACS580-01-025A-4 | FR-A840-01850-2-60 | CIMR-HB4A0031ABC |
| VFD110CH43A-00 | 6SL3224-0BE32-2UA0 (Heavy Duty) | ATV320U11N4 (Heavy Duty) | ACS580-01-025A-4 (Heavy Duty) | FR-A840-01850-2-60 (Heavy Duty) | CIMR-HB4A0031ABC (Heavy Duty) |
| 15kW | |||||
| VFD150C43A-00 | 6SL3224-0BE33-0UA0 (G120C) | ATV320U15N4 | ACS580-01-032A-4 | FR-A840-02460-2-60 | CIMR-HB4A0045ABC |
| 22kW | |||||
| VFD220C43A-00 | 6SL3224-0BE34-4UA0 (G120C) | ATV320U22N4 | ACS580-01-048A-4 | FR-A840-03860-2-60 | CIMR-HB4A0060ABC |
| 37kW | |||||
| VFD370C43A-00 | 6SL3224-0BE37-5UA0 (G120C) | ATV320U37N4 | ACS580-01-088A-4 | FR-A840-07560-2-60 | CIMR-HB4A0100ABC |
| 45kW | |||||
| VFD450C43A-00 | 6SL3224-0BE38-8UA0 (G120C) | ATV320U45N4 | ACS580-01-106A-4 | FR-A840-09060-2-60 | CIMR-HB4A0110ABC |
| 55kW | |||||
| VFD550C43A-00 | 6SL3224-0BE35-5UA0 (G120C) | ATV320U55N4 | ACS580-01-12A7-4 | FR-A840-05620-2-60 | CIMR-HB4A0110ABC |
- Cross-brand Replacement Selection Key Points
- Power Matching Principle
Heavy-duty Application: Ensure replacement model rated current ≥ original Delta rated current (Delta C2000 55kW: 110A)
Light-duty Application: Same or slightly lower power model acceptable for cost saving
Impact Load: Select one power level higher for sufficient safety margin
- Function Matching Key Points
| Function Requirement | Selection Focus | Delta Model Feature |
| Vector Control | Support sensorless vector control | Series C / Suffix A |
| Built-in PLC | With programming function | C2000 (10K-step), VFD-E Series |
| Communication Protocol | Support Modbus RTU, optional PROFIBUS-DP / EtherNet/IP | Standard RS-485, optional expansion card |
| EMC Filter | Built-in or external | Suffix -21 with built-in EMC filter |
| Braking Unit | Built-in or external | Suffix -41 with built-in braking unit |
| Protection Grade | IP00 / IP20 / IP54 | Standard IP00, enclosed type IP20 |
- Brand Feature Comparison
| Brand | Advantages | Disadvantages | Application Scenarios |
| Delta | Moderate price, high stability, easy commissioning, short delivery time | Limited high-end functions | General industry, electronics manufacturing, packaging machinery |
| Siemens | Top technology, rich communication protocols, global service | High price | Large complex systems, high-end manufacturing |
| Schneider | Compact size, rich built-in functions, cost-effective | Average heavy-duty performance | Building automation, light industry |
| ABB | High energy efficiency, built-in braking unit, high reliability | High price | Energy industry, large fans & pumps |
| Mitsubishi | Fast response, suitable for motion control | No built-in PLC, limited communication options | Machine tools, textile machinery |
| Yaskawa | High torque control accuracy, excellent for heavy load | High price | Lifting machinery, metallurgy industry |
- Quick Selection Formula for Model Replacement
- Power Conversion: Delta kW × 1.33 ≈ HP, current consistency is the priority
- Series Matching: Compact → Siemens G110M / Schneider ATV310; Standard → Siemens G120C / Schneider ATV320; Heavy-duty → Siemens G120X / Schneider ATV630
- Function Selection: Vector control choose suffix A; EMC filter choose -21; Braking unit choose -41
- Brand Selection: General use Delta; High-end system choose Siemens / ABB; Cost performance choose Schneider
