Product Overview: Nidec Control Techniques SKB3400075
The SKB3400075 is a compact and highly efficient AC variable speed drive from the legacy Commander SK series by Nidec Control Techniques. Designed for 400V industrial networks, this Size B drive provides a rated output of 0.75kW (1.0HP). It is widely recognized for its «Simple as it is» philosophy, featuring the most common setup parameters printed directly on the front cover. This drive is a staple for general-purpose motor control in conveyors, fans, and industrial pumps where reliability and ease of commissioning are paramount.
High Performance in a Compact Footprint
The SKB3400075 utilizes an advanced Open Loop Vector control algorithm that delivers exceptional torque performance (up to 150% for 60 seconds) down to low frequencies. Despite its compact 85mm width, it features integrated intelligence, including an onboard PID controller and a built-in braking transistor. The drive is designed for high-density panel mounting and can be expanded via the SM-Option slots to support various fieldbus communications such as Profibus, DeviceNet, or Ethernet/IP, making it a versatile tool for modern decentralized automation.
Key Technical Characteristics
- Part Number: SKB3400075.
- Frame Size: B.
- Rated Capacity: 0.75 kW / 1.0 HP.
- Output Current: 2.1 Amperes (Continuous).
- Input Voltage: 3-Phase 380V to 480V AC.
- Control Mode: Sensorless Vector / V/Hz.
- I/O: 4x Digital In, 1x Digital I/O, 1x Relay, 2x Analog In, 1x Analog Out.
- Safety: Integrated Thermal Management (ITM).
Industrial Reliability and Expansion
Built for the rigors of 24/7 manufacturing, the SKB3400075 includes high-grade capacitors and a robust thermal design. The integrated SmartStick (optional) allows for instant parameter cloning, enabling rapid drive replacement without the need for a PC. Its RS485 port comes standard with Modbus RTU protocol, ensuring seamless integration into PLC-based control architectures. Although the series has been succeeded by the Unidrive M series, the SKB3400075 remains a vital spare part for global industrial infrastructure.
| Feature | Detail |
| Protection Rating | IP20 / NEMA 1 |
| Switching Frequency | 3, 6, 12, or 18 kHz |
| Mass | Approx. 1.3 kg |
Frequently Asked Questions
Is the filter included? Yes, the SKB3400075 typically features a built-in EMC filter for standard industrial environments. Can it be DIN-rail mounted? Yes, Size B units support standard 35mm DIN-rail mounting or surface mounting via M4 screws.
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