SP3402 – Nidec Control Techniques Unidrive SP AC Drive, 18.5-22kW, Size 3, In Stock
Buy the Nidec Control Techniques SP3402, a Unidrive SP AC/servo drive, Size 3, 18.5-22 kW (30 HP), three-phase 380-480 VAC, 40-43A 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: SP3402
- Manufacturer: Nidec Control Techniques
- Frame Size: 3 (Size 3)
- Power Rating (Normal Duty): 22 kW / 30 HP, 43 A max. continuous
- Power Rating (Heavy Duty): 18.5 kW / 25 HP, 40 A max. continuous
- Input Voltage: 3-phase, 380-480 VAC
- Input Frequency: 48–65 Hz
- Max. Output Frequency: Up to 550 Hz
- Weight: 33.1 lb / 15.01 kg
- Dimensions: 15.3 x 9.8 x 10.2 in.
- Control Modes: Open Loop Flow Vector Control (RFC, sensorless), open loop V/F, closed loop vector, servo
- Product Status: Discontinued by manufacturer (Unidrive SP series declared obsolete)
Design and Performance
Sensorless Flow Vector Control for High Performance Without Encoder
Operating in Open Loop Flow Vector Control (RFC) mode, the SP3402 controls magnetizing and active current separately, calculating rotor speed and position without requiring a speed sensor, delivering very high performance suitable for the majority of standard motor applications.
Obsolete Platform Still Widely Supported for Maintenance
Nidec has officially declared the entire Unidrive SP series obsolete, but the SP3402 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, complementing the dedicated SP3402-HF high-frequency variant available within the same power class.
Dual-Rated Performance for Flexible Load Matching
With separate Normal Duty (22 kW/30 HP, 43A) and Heavy Duty (18.5 kW/25 HP, 40A) ratings, the SP3402 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 SP3402 lets engineers standardize commissioning knowledge across projects using multiple drive frame sizes.
Why Buy the SP3402 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
