SP3401 – Nidec Control Techniques Unidrive SP AC Drive, 15-18.5kW, Size 3, In Stock
Buy the Nidec Control Techniques SP3401, a Unidrive SP AC/servo drive, Size 3, 15-18.5 kW (25 HP), three-phase 380-480 VAC, 32-35A continuous output. In stock and available for fast shipping. Get a quote today.
Key Technical Specifications
- Product Type: AC variable speed/servo drive, Unidrive SP series
- Part Number: SP3401
- Manufacturer: Nidec Control Techniques
- Frame Size: 3 (Size 3)
- Power Rating (Normal Duty): 18.5 kW / 25 HP
- Power Rating (Heavy Duty): 15 kW / 20 HP
- Rated Current: 32–35 A
- Input Voltage: 3-phase, 380-480 VAC
- Input Frequency: 48–65 Hz
- Max. Output Frequency: Up to 550 Hz
- Ambient Temperature: 0°C to 40°C, non-condensing
- Compatible EMC Filter Part Numbers: 4200-6305 / 4200-6306
- Product Status: Discontinued by manufacturer (Unidrive SP series declared obsolete)
Design and Performance
Robust Frame Size 3 Platform for Mid-High Power Applications
Extending the Unidrive SP range beyond Size 2, the SP3401 delivers up to 18.5 kW / 25 HP Normal Duty performance, suiting larger conveyors, pumps, compressors, and machine tool applications requiring more substantial motor control capacity.
Obsolete Platform Still Widely Supported for Maintenance
Nidec has officially declared the entire Unidrive SP series obsolete, but the SP3401 remains actively sourced new, refurbished, and via repair-exchange programs for maintenance and like-for-like replacement, avoiding the complications of a full drive system retrofit.
High Output Frequency for Specialized Applications
With an output frequency range reaching up to 550 Hz, this drive supports specialized high-speed motor applications beyond standard 50/60 Hz industrial motor control, complementing the dedicated SP3401-HF high-frequency variant available in the same platform.
Dual-Rated Performance for Flexible Load Matching
With separate Normal Duty (18.5 kW/25 HP) and Heavy Duty (15 kW/20 HP) ratings, the SP3401 adapts to both self-ventilated fan/pump loads and more demanding constant-torque applications within the same compact Size 3 drive body.
Consistent Platform Across the Unidrive SP Range
Sharing the same flexible control interface and software parameters as other Unidrive SP sizes (from the compact SP0202 up to high-power SP5402 units), the SP3401 lets engineers standardize commissioning knowledge across projects using multiple drive frame sizes.
Why Buy the SP3401 From Us
- In stock and ready for immediate dispatch
- Fast shipping on every order
- Commercial advisory support to help you confirm compatibility with your motor application, or explore modern replacement options if you’re upgrading away from this obsolete platform
- Competitive pricing — get a quote in minutes
