Schütz,Leistungsschalter,Solarwechselrichter,Stromzähler,Solarbatterien
Delta inverters use the standard naming convention:
VFD-[Leistungscode][Seriencode][Spannungscode][Special Function Code].
Some new models (such as the MS300 series) adopt a more detailed extended naming format.
The following provides a comprehensive explanation from four aspects: general structure, meaning of each part, typical series examples, and special function codes.
- General Model Structure (Beispiel: VFD007E23A)
| Position | Code | Bedeutung | Beispielbeschreibung |
| 1–3 | VFD | Product Identifier | Variable Frequency Drive. All Delta inverters start with this. |
| 4–6 | 7 | Rated Power Code | Represents 0.75 kW (750 W). Different codes correspond to different power ratings. |
| 7 | E | Seriencode | Indicates VFD‑E series (low‑power inverter with built‑in PLC). |
| 8–9 | 23 | Stromspannung & Phase Code | “2” = 200–240 V, “3” = 3‑phase input. |
| 10 | A | Special Function Code | Standard version with built‑in EMI filter. |
- Detailed Breakdown of Each Part
2.1 Power Code vs. Nennleistung (kW)
| Leistungscode | Nennleistung | Leistungscode | Nennleistung | Leistungscode | Nennleistung |
| 2 | 0.2 | 15 | 1.5 | 75 | 7.5 |
| 4 | 0.4 | 22 | 2.2 | 110 | 11 |
| 7 | 0.75 | 37 | 3.7 | 150 | 15 |
| 10 | 1 | 55 | 5.5 | 220 | 22 |
Notiz: Some high‑power models use actual power directly, z.B., VFD110B43A = 110 kW.
2.2 Seriencode & Merkmale
| Seriencode | Series Name | Hauptmerkmale | Typische Anwendungen |
| M | VFD‑M | Geräuscharm, kompakte Größe | Kleine Maschinen, Verpackung, Förderer |
| E | VFD‑E | Built‑in PLC | Automatisierte Produktionslinien |
| B | VFD‑B | Sensorlose Vektorsteuerung, high torque | Fans, Pumps, Kompressoren, Kräne |
| F | VFD‑F | Für Fans & Pumps, built‑in PID | HVAC, Kühltürme, water supply |
| MS | MS300 | Compact high‑performance general‑purpose | Small automation, replaces VFD‑M |
| MH | MH300 | High‑performance vector, servo‑grade | Positionierung, tension control, sync motors |
| CP2000 | VFD‑CP2000 | Sensorless vector, hohe Überlastung | General industrial machinery |
| ED | VFD‑ED | Dedicated for elevators | Passenger & freight elevators, Rolltreppen |
2.3 Stromspannung & Phase Code
| Code | Eingangsleistung | Ausgabe | Application Region |
| 21 | 1‑phase 200–240 V | 3‑phase 0–240 V | Home/small equipment, Asia/NA |
| 23 | 3‑phase 200–240 V | 3‑phase 0–240 V | Industriell, Asia/NA |
| 43 | 3‑phase 380–460 V | 3‑phase 0–460 V | Industriell, global |
| 53 | 3‑phase 525–600 V | 3‑phase 0–600 V | High‑voltage industrial |
2.4 Special Function Suffix Codes
| Letter | Bedeutung | Letter | Bedeutung | Letter | Bedeutung |
| A | With EMI filter, Standard | B | With braking unit | N | Ohne EMV-Filter |
| S | Built‑in STO | H | Enhanced heat dissipation | P | Higher protection |
| ‑21 | Special version | ‑00 | Standardversion | ‑EA | Energy‑saving for fans/pumps |
- New Extended Format (Beispiel: VFD1A5MS43ANSHA, MS300)
| Position | Code | Bedeutung | Beschreibung |
| 1–3 | VFD | Inverter identifier | Standard prefix |
| 4–6 | 1A5 | Nennausgangsstrom | 1.5 A (≈ 0.75 kW) |
| 7–8 | MS | Seriencode | MS300 series |
| 9–10 | 43 | Voltage code | 460 V 3-Phasen-Eingang |
| 11 | A | IP-Schutzart | IP20 |
| 12 | N | EMC configuration | Ohne EMV-Filter |
| 13 | S | Sicherheitsfunktion | Built‑in STO |
| 14 | S | Kühlung | Standard cooling |
| 15–16 | AA | Special options | Standardkonfiguration |
- Vollständige Modellbeispiele
Beispiel 1: VFD007E23A
VFD: Wechselrichter
007: 0.75 kW
E: E series (built‑in PLC)
23: 3‑phase 200–240 V input
A: Standard with EMI filter
Beispiel 2: VFD110B43A
VFD: Wechselrichter
110: 110 kW
B: B series (sensorloser Vektor)
43: 3‑phase 380–460 V input
A: Standard with EMI filter
Beispiel 3: VFD1A5MS43ANSHA
VFD: Wechselrichter
1A5: 1.5 A output (≈ 0.75 kW)
MS: MS300 series
43: 460 V 3-Phasen-Eingang
A: IP20
N: No EMC filter
S: STO
S: Standard cooling
AA: Standardversion
- Auswahl & Identification Tips
- Leistungsanpassung: Select according to motor rated power; inverter ≥ 1.1× motor power recommended.
- Voltage compatibility: Confirm input phase and voltage (21/23/43, usw.).
- Series function: Choose by application (F for fans/pumps, E for PLC).
- Besondere Anforderungen: Select protection, EMV, and safety functions as needed.
- Backward compatibility: New models (z.B., MS300) replace older ones.
- Quick Identification Mnemonic
Start with VFD,
Numbers show power,
Letters show series,
Two digits show voltage,
Suffix shows features.
With the above explanation, you can easily identify the power, Serie, Stromspannung, and functions of any Delta inverter model for accurate selection, Einkauf, und Wartung.
