1.5A (0.75kW) Soft Starter - 400V Three-Phase Control, Built-In Bypass is a motor soft starter designed for controlled starting and stopping of 3-phase induction motors in industrial automation. True 3P3 control and a built-in bypass help reduce current imbalance, mechanical shock, and heat during start-up.
🔧 Technical Highlights:
- Rated main voltage: 400 V AC, 50/60 Hz
- Control supply: 100–240 V AC (A-code)
- Rated current: 1.5 A
- Motor rating (400 V): 0.75 kW
- Control method: 3P3 three-phase controlling (SCR on all 3 phases)
- Start/stop ramp: Start 1–30 s; stop 0–30 s (adjustable)
- Initial voltage: 30–70% Un (adjustable)
- Motor protection: Overcurrent, overload class 10A/10/20/30, phase loss/no voltage, phase sequence, SCR overtemperature
- Communications: Optional RS-485 (Modbus) monitoring
- Ingress protection: IP21
✅ Benefits:
- Balanced three-phase control helps reduce torque ripple, vibration, and winding heating compared with two-phase control designs.
- Built-in bypass reduces heat dissipation after start, improving panel thermal performance.
- Adjustable ramp and initial voltage supports smoother starts on pumps, fans, and belt-driven machinery.
- Integrated protections support stable operation through supply and load disturbances.
- Optional Modbus monitoring supports remote status and basic diagnostics.
🚀 Applications:
- Centrifugal pumps and booster sets.
- Fans and blowers.
- Conveyors, crushers, mixers, and compressors.
- General industrial motor starting and retrofit of star/delta starters.
Engineered for smooth starting, reliable protection, and reduced mechanical stress on 3-phase motors.
FAQs
- Q: Is this a true three-phase controlled soft starter (3P3)?
A: Yes. 3P3 control uses SCRs on all three phases for balanced current and smooth torque.
- Q: Does this model include RS-485 Modbus communication?
A: RS-485 (Modbus) is available as an option on SSR series units; confirm the selected variant when ordering.