Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | 31C075-503-4-00 |
| Product Type | Frequency Inverter |
| Series | MOVITRAC 31C |
| Rated Power | 7.5 kW |
| Input Voltage | 3 × 380–500 V AC, 50/60 Hz |
| Input Current | Approx. 13.8 A |
| Output Current | 16 A |
| Output Frequency | 0–400 Hz |
| Apparent Power | 11 kVA |
| Protection Class | IP20 |
| Brake Chopper | Integrated (standard for this size) |
4. Product Introduction (Anti-Template)
The SEW-EURODRIVE MOVITRAC 31C075-503-4-00 is a 7.5 kW frequency inverter from the MOVITRAC 31C series. It is designed for three-phase supply voltages of 380–500 V and delivers an output current of 16 A with a frequency range of 0–400 Hz.
The unit belongs to SEW’s earlier generation of compact frequency inverters used for speed control of standard asynchronous motors in conveyors, pumps, fans, and general machinery. It typically includes an integrated brake chopper. The MOVITRAC 31C series is a mature/discontinued product line; exact firmware, option cards, and parameter sets must be verified when replacing an existing unit to ensure compatibility with the driven machine and any higher-level control system.
31C075-503-4-00
31C075-503-4-00
31C075-503-4-00
31C075-503-4-00
31C075-503-4-00
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full model number (31C075-503-4-00), power rating labels, and connector/terminal condition. Photograph all labels.
- Functional Testing – Power the unit and verify basic power-up, display/keypad operation, and output to a test motor if possible. Full validation requires the application parameter set.
- QA & Packaging – Protect terminals and cooling surfaces, clean according to electronics handling practices, and pack in protective packaging suitable for power electronics.
- Global Logistics & Export Compliance – Classify under the correct HS code for frequency converters / AC drives. Packaging must protect against shock and moisture; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Parameter Set – The inverter stores application-specific parameters. Back up or document the existing parameter set before replacement.
Discontinued Status – The MOVITRAC 31C series is no longer in active production. Confirm long-term spare availability and consider migration options if the system is critical.
Brake Resistor – If the application uses dynamic braking, verify that the external brake resistor (if any) matches the inverter’s chopper rating.
Motor Matching – Ensure the motor rated current and voltage are within the inverter’s output capability and that the correct motor data is entered in the parameters.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified 31C075-503-4-00?
As a discontinued MOVITRAC 31C unit, availability depends on surplus and refurbished stock. Typical lead time after verification is 5–20 business days plus standard shipping.
What is the primary function of this unit?
It is a 7.5 kW frequency inverter for speed control of three-phase AC motors.
What is the input voltage range?
3 × 380–500 V AC, 50/60 Hz.
What is the rated output current?
16 A.
Is the MOVITRAC 31C series still in production?
No. It is a discontinued series. Units are primarily available as surplus or refurbished.
What should be confirmed before ordering a replacement?
Exact model (31C075-503-4-00), presence of any option cards, the existing parameter set, and compatibility with the driven motor and control system.
