MD310T18.5B-INT is the 18.5 kW motor-class model in this MD310 selection, with a 37 A output rating. Increasing drive size also requires a review of supply protection, cable sizing and enclosure heat load. The manufacturer specifies output current at a 6 kHz carrier frequency; other operating conditions may require derating.
Technical specifications
| Motor class | 18.5 kW |
|---|---|
| Rated input | 3-phase 380-440 VAC |
| Output current (6 kHz) | 37 A |
| Rated input current | 38.5 A |
| Control methods | V/f; SVC |
| Communications | Modbus RTU (RS485) |
| Frequency ceiling | SVC: 300 Hz; V/f: 500 Hz |
| Overload | 150% / 60 s; 180% / 2 s |
| Braking unit | Built in; resistor selected separately |
| Protection | IP20 |
Current is rated at 6 kHz carrier frequency. Derating applies above 40 °C. Confirm enclosure depth and clearances from the exact-code drawing.
Application selection
Do not assume 37 A is available under every ambient and switching condition. Have a qualified designer size the power circuit and enclosure ventilation together.
Does a compact enclosure eliminate the need for cooling design?
No. Drive losses, neighbouring equipment, mounting clearances and ambient temperature must be included in the thermal assessment.
Installation and commissioning
Qualified personnel must use the exact-model manual for installation and commissioning. Apply lockout before physical inspection, retain project/parameter backups and never bypass protective functions.
Quotation and supply
Provide the motor nameplate, cable distance and panel temperature for a quotation covering power-circuit requirements.
Price, stock and lead time are not verified and require confirmation in the quotation.
Product comparison
MD310T0.4B-INT – Separate model; not an automatic substitute.
Manufacturer-assigned product/enclosure visual. A separate full-code nameplate is unverified; some models share the image.
