Delta MS300 High-Speed Variable Frequency Drives
Identify MS300 high-speed variants by supply, enclosure and filter options. The catalog specifies up to 1500 Hz with derating in V/F control.
- VFD7A5MS21ANSHA
- VFD11AMS21ANSHA
- VFD17AMS23ANSHA
- VFD33AMS23ANSHA
- VFD4A2MS43ANSHA
- VFD5A5MS43ANSHA
- VFD9A0MS43ANSHA
- VFD9A0MS43AFSHA
- VFD9A0MS43ENSHA
- VFD13AMS43ANSHA
- VFD17AMS43ANSHA
- VFD25AMS43ANSHA
The Delta MS300 high-speed VFD range is a distinct selection within the MS300 family. For a spindle or another high-frequency motor application, check the required output frequency and the motor requirements before choosing a drive. The complete ordering code matters: a standard MS300 and a high-speed variant should not be treated as equivalent.
What the 1500 Hz specification means
Delta’s catalog lists a maximum output frequency of 599 Hz for standard models and 1500 Hz for high-speed models. The 1500 Hz specification is qualified by derating and V/F control only. Check the applicable high-speed manual for the permitted operating conditions and output-current capacity at your required frequency.
This is an electrical output-frequency limit, not a guaranteed motor shaft speed or an instruction to run a motor at 1500 Hz. Confirm the motor’s rated frequency, voltage, current and permitted speed, together with the machine’s operating requirements.
Delta MS300 catalog: general specifications on printed page 19.
MS300 high-speed model selection
The 16 ordering codes below are grouped by input supply. Motor capacities are catalog references; final selection must also account for load duty, output current and the high-frequency derating conditions. Voltage labels identify input classes, not the full permitted input range.
230 V class, single-phase input
| Complete model number | Catalog motor capacity (kW) | Enclosure | Built-in EMC filter |
|---|---|---|---|
| VFD7A5MS21ANSHA | 1.5 | IP20 | No |
| VFD11AMS21ANSHA | 2.2 | IP20 | No |
230 V class, three-phase input
| Complete model number | Catalog motor capacity (kW) | Enclosure | Built-in EMC filter |
|---|---|---|---|
| VFD17AMS23ANSHA | 3.7 / 4 | IP20 | No |
| VFD33AMS23ANSHA | 7.5 | IP20 | No |
| VFD49AMS23ANSHA | 11 | IP20 | No |
460 V class, three-phase input
| Complete model number | Catalog motor capacity (kW) | Enclosure | Built-in EMC filter |
|---|---|---|---|
| VFD4A2MS43ANSHA | 1.5 | IP20 | No |
| VFD5A5MS43ANSHA | 2.2 | IP20 | No |
| VFD9A0MS43ANSHA | 3.7 / 4 | IP20 | No |
| VFD9A0MS43AFSHA | 3.7 / 4 | IP20 | Yes |
| VFD9A0MS43ENSHA | 3.7 / 4 | IP40 | No |
| VFD13AMS43ANSHA | 5.5 | IP20 | No |
| VFD17AMS43ANSHA | 7.5 | IP20 | No |
| VFD25AMS43ANSHA | 11 | IP20 | No |
| VFD32AMS43ANSHA | 15 | IP20 | No |
| VFD38AMS43ANSHA | 18.5 | IP20 | No |
| VFD45AMS43ANSHA | 22 | IP20 | No |
Source: Delta MS300 catalog, high-speed ordering table on printed page 36.
Compare three 460 V high-speed configurations
In the 460 V group, VFD9A0MS43ANSHA is IP20 without a built-in EMC filter, VFD9A0MS43AFSHA is IP20 with a built-in filter, and VFD9A0MS43ENSHA is IP40 without a built-in filter. The shared base code does not make their installation configurations identical.
Information to confirm before selection
- Required frequency and control: State the intended motor operating frequency and control requirement. Review the V/F-only and derating qualification before relying on the catalog’s upper limit.
- Motor and machine data: Provide the motor or spindle nameplate, rated current and permitted speed. A frequency range alone does not establish suitability for a particular spindle.
- Supply and installation: Confirm input voltage and phase count, enclosure, mounting space, cooling and the installation’s EMC requirements.
- Existing drive replacement: Record the full installed code and connected options. Verify the operating conditions and parameter requirements before choosing a replacement.
Technical documents and inquiries
Use the ordering table for identification and the applicable MS300 high-speed user manual for derating, wiring and parameter settings. Standard-model documentation should not be assumed to cover every high-speed operating condition. Visit Delta’s MS300 documentation entry.
For a quotation, include the complete model number, quantity and destination. For a new high-speed application, also provide the motor nameplate and required operating frequency.