The SHR2DN series online soft starter is a versatile motor control solution designed for safe and efficient motor starting. Supporting main power supplies from 230V to 690VAC and current ranges up to 840A, it offers flexible control with six starting modes, adjustable starting/stopping times, and initial voltage settings. The device features RS485 communication, multiple protection functions, and low-voltage operation capability. With its intelligent chip, LED display, and robust three-proof coating design, it ensures stable performance while providing energy savings and convenient operation for industrial applications.
Application environment
The SHR2DN series online soft starter is engineered for diverse industrial and commercial applications, including pumps, fans, conveyors, and other motor-driven systems. It thrives in environments requiring reliable motor control, such as factories, commercial buildings, and infrastructure projects. With robust protection features, intelligent communication capabilities, and a durable flame-retardant design, it ensures stable operation in challenging conditions while its built-in cooling system enhances endurance. Ideal for seamless integration and efficient performance.
Product parameters
| Main power supply | 230V~690VAC 50/60Hz |
| Control power supply | 110V~120VAC 50/60Hz |
| 220~240VAC 50/60Hz | |
| Control input signal | 110~120VAC 50/60Hz |
| 220~240VAC 50/60Hz | |
| Main current | 18~840A |
| Starting time | 1~30s (extendable to 90s) |
| Stopping time | 1~30s (extendable to 90s) |
| Initial voltage | 10~50%Un (extendable to 80%Un) |
| Current limiting multiple | 100%~400%FLA (extendable to 500%) |
| Starting frequency | 4 times per hour at the maximum starting current |
| Pulse starting | 80%Un for a duration of 0~1s |
| Low-speed operation time | ≤30s |
| Pump control curve | 6 pieces |
| Speed feedback curve | 12 pieces |
| Display language type | 4 languages can be optionally selected |
| The maximum power of the motor | Rated current range | Specifications and models of soft starters | |||||||
| 230V | 400V | 500V | 690V | A | Model | Main voltage | Control voltage | Control input voltage | Option function |
| 4 | 7.5 | 11 | 15 | 9-18 | SHR2DN18 | -x | -x | -x | x+x |
| 7.5 | 15 | 18.5 | 25 | 15-30 | SHR2DN30 | -x | -x | -x | x+x |
| 15 | 22 | 25 | 37 | 23-45 | SHR2DN45 | -x | -x | -x | x+x |
| 18.5 | 30 | 37 | 55 | 30-60 | SHR2DN60 | -x | -x | -x | x+x |
| 22 | 37 | 45 | 59 | 38-75 | SHR2DN75 | -x | -x | -x | x+x |
| 25 | 45 | 55 | 75 | 45-90 | SHR2DN90 | -x | -x | -x | x+x |
| 30 | 55 | 75 | 90 | 55-110 | SHR2DN110 | -x | -x | -x | x+x |
| 37 | 75 | 90 | 132 | 73-145 | SHR2DN145 | -x | -x | -x | x+x |
| 45 | 90 | 110 | 160 | 88-175 | SHR2DN175 | -x | -x | -x | x+x |
| 55 | 110 | 132 | 200 | 105-210 | SHR2DN210 | -x | -x | -x | x+x |
| 75 | 132 | 160 | 220 | 125-250 | SHR2DN250 | -x | -x | -x | x+x |
| 90 | 160 | 200 | 257 | 150-300 | SHR2DN300 | -x | -x | -x | x+x |
| 110 | 200 | 250 | 355 | 185-370 | SHR2DN370 | -x | -x | -x | x+x |
| 132 | 250 | 315 | 450 | 235-470 | SHR2DN470 | -x | -x | -x | x+x |
| 160 | 315 | 400 | 560 | 285-570 | SHR2DN570 | -x | -x | -x | x+x |
| 200 | 400 | 500 | 710 | 360-720 | SHR2DN720 | -x | -x | -x | x+x |
| 250 | 450 | 560 | 800 | 420-840 | SHR2DN840 | -x | -x | -x | x+x |
Dimension
Product Features
- The SHR2DN series supports multiple start modes to adapt to various motor types and application scenarios. With RS485 communication compatibility, it integrates smoothly into automated systems, enabling remote control and real-time monitoring for enhanced operational adaptability.
- Designed for universal motor protection, this soft starter accommodates diverse voltage and current requirements while safeguarding against overloads, phase loss, and voltage fluctuations. Its intelligent current-limiting and voltage adjustment features ensure stable and secure motor startups.
- Equipped with multi-layered protection functions, the device prevents motor damage caused by electrical faults, overheating, or unstable power supplies. Advanced starting strategies, such as pulse starting, further enhance equipment safety and prolong service life.
- Featuring stepless speed regulation and energy-saving capabilities, the soft starter optimizes motor performance while minimizing power consumption. Smooth acceleration and deceleration reduce mechanical stress, improving overall system efficiency.
- The user-friendly LED display and button layout simplify setup, operation, and troubleshooting. Multi-language support caters to global users, ensuring quick access to critical data and seamless parameter adjustments.
- Built with high-quality, corrosion-resistant materials and a built-in cooling system, the SHR2DN series withstands harsh industrial environments. Its flame-retardant housing and anti-static design guarantee stable performance and long-term reliability.
Product installation and instructions
- Begin by disconnecting all power sources to ensure a safe installation environment. Inspect the soft starter unit and accessories for any physical damage. Choose a well-ventilated, dry location away from excessive heat or moisture. Ensure the mounting surface is stable and level to support the device securely before proceeding.
- Connect the main power supply to the designated input terminals, ensuring proper insulation and secure fastening. Link the motor’s output terminals (U/V/W) to the soft starter’s corresponding output ports. Double-check all connections for reliability and confirm correct grounding to prevent electrical hazards during operation.
- Wire the control input signals (e.g., start/stop commands) to the designated control terminals, following the unit’s wiring diagram. If remote control or communication is required, integrate the 485 interface or other optional modules. Ensure all control wires are neatly organized and shielded to minimize interference.
- Power on the device and access the intuitive LED display interface. Configure fundamental settings such as start/stop modes and operational preferences using the keypad. Select from available control options (e.g., voltage ramping) and save configurations. Verify that all settings align with the motor’s operational requirements.
- Conduct an initial no-load test to observe the startup sequence, ensuring smooth acceleration and deceleration. Monitor for unusual noises, vibrations, or overheating. Validate the effectiveness of protective features and confirm stable performance. Adjust settings if necessary before proceeding to full-load operation.
Note：For SHR2DN series online soft starters, pay attention to proper installation per the manual. Ensure correct wiring to avoid short circuits. Regularly inspect for overheating. Operate within rated voltage and current limits.
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