SP3403 – Nidec Control Techniques Unidrive SP AC Drive, 22-30kW, Size 3, In Stock
Buy the Nidec Control Techniques SP3403, a Unidrive SP AC/servo drive, Size 3, 22-30 kW (40 HP), three-phase 380-480 VAC, 46-56A 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: SP3403
- Manufacturer: Nidec Control Techniques
- Frame Size: 3 (Size 3)
- Power Rating (Normal Duty): 30 kW / 40 HP, 56 A max. continuous
- Power Rating (Heavy Duty): 22 kW / 30 HP, 46 A max. continuous
- Input Voltage: 3-phase, 380-480 VAC
- Input Frequency: 48–65 Hz
- Enclosure Rating: IP20
- Ambient Temperature: 0°C to 40°C
- Storage Temperature: -40°C to 70°C, non-condensing
- Control Modes: Vector frequency control, closed-loop induction motor control, open-loop vector control, Servo control
- Braking Resistor Group (SP3401-SP3403): Min. 18 Ω, 35.5 kW instantaneous power
- Weight: 33.1 lb / 15.01 kg
- Product Status: Discontinued by manufacturer (Unidrive SP series declared obsolete)
Design and Performance
Highest-Power Configuration in the Frame Size 3 Range
At 30 kW / 40 HP with 56 A max. continuous output, the SP3403 delivers the top power rating within the SP340x sub-range, suiting the most demanding conveyor, pump, compressor, and machine tool applications within the Size 3 platform.
Obsolete Platform Still Widely Supported for Maintenance
Nidec has officially declared the entire Unidrive SP series obsolete, but the SP3403 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.
Advanced Multi-Mode Motor Control Flexibility
Supporting vector frequency control, closed-loop induction motor control, open-loop vector control, and Servo control, the SP3403 provides significant flexibility for adapting to a wide range of motor types and application requirements.
Shared Braking Resistor Group Across the SP340x Range
Rated for a minimum 18 Ω braking resistor with 35.5 kW instantaneous power capability (shared with SP3401 and SP3402), this drive simplifies braking resistor sourcing and standardization across the full SP340x sub-range.
Wide Storage Temperature Range for Reliable Long-Term Storage
Rated for storage temperatures from -40°C to 70°C (non-condensing), the SP3403 supports reliable performance even after extended storage periods, an important consideration for spare/replacement unit inventory.
Why Buy the SP3403 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 and braking resistor sizing, or explore modern replacement options if you’re upgrading away from this obsolete platform
- Competitive pricing — get a quote in minutes
