Variable frequency drive
STEP has been focusing on the fields of power electronics and motor control for over two decades. It boasts a fully integrated value chain—from independent R&D platforms and design to manufacturing, sales, and inspection—as well as a fully automated intelligent assembly line for integrated drive and control systems. STEP's high- and low-voltage variable-frequency drive platform covers the entire power range, with an annual production capacity of 500,000 units.
Relying on a multi-brand strategy encompassing"STEP","iAStar"and"SIGRINER",STEP continues to lead the markets for smart water management, HVAC systems, and logistics & warehousing drive-control systems. It has earned deep trust in the field of electrical control systems for open-mill and closed-mill rubber tire machinery, and is also widely applied in industries such as elevators, lifting equipment, marine and offshore engineering, mining, and general energy-saving applications.
AS800 High-Voltage Frequency Converter
The AS800 high-voltage variable frequency drive meets the stringent IEEE 519-2014 requirements for current harmonic distortion; it features a standard protection rating of IP31, with an optional IP42 rating; and is suitable for use with asynchronous high-voltage motors, permanent-magnet synchronous high-voltage motors, and more.
ET6/EP6/EH6/ES6/EM6 Intelligent Flexible Variable Frequency Drive
Automatically matches motor types; no derating required at ambient temperatures up to 50°C; built-in industry application macros; CE-certified.
AS170NT HVAC Pump Dedicated Backpack Inverter
IP54 high protection rating; PCB coated to meet 3C4 environmental standards. Rated for operation at high temperatures up to 45°C, suitable for the high-temperature environment of heating stations. Entire series from 1.5 to 75 kW available in a back-mounted installation design, saving installation space. Multiple control modes: temperature/difference control, pressure differential control.
AS170Plus Backpack Pump Dedicated Inverter
Power range: 1.5–22 kW; Input voltage: 380 V AC ±10%; Compatible motors: asynchronous motor, synchronous reluctance motor, permanent magnet synchronous motor; Main functions: complete pump control functions, multi-type motor drive and protection, detection and protection against ambient temperature and mechanical vibration.
AS720S Liquid-Cooled Series Inverter
Airborne installation, wide temperature range, flexible and reliable.
AS800 High-Voltage Frequency Converter
The AS800 high-voltage variable frequency drive meets the stringent IEEE 519-2014 requirements for current harmonic distortion; it features a standard protection rating of IP31, with an optional IP42 rating; and is suitable for use with asynchronous high-voltage motors, permanent-magnet synchronous high-voltage motors, and more.
ET6/EP6/EH6/ES6/EM6 Intelligent Flexible Variable Frequency Drive
Automatically matches motor types; no derating required at ambient temperatures up to 50°C; built-in industry application macros; CE-certified.
AS170NT HVAC Pump Dedicated Backpack Inverter
IP54 high protection rating; PCB coated to meet 3C4 environmental standards. Rated for operation at high temperatures up to 45°C, suitable for the high-temperature environment of heating stations. Entire series from 1.5 to 75 kW available in a back-mounted installation design, saving installation space. Multiple control modes: temperature/difference control, pressure differential control.
AS170Plus Backpack Pump Dedicated Inverter
Power range: 1.5–22 kW; Input voltage: 380 V AC ±10%; Compatible motors: asynchronous motor, synchronous reluctance motor, permanent magnet synchronous motor; Main functions: complete pump control functions, multi-type motor drive and protection, detection and protection against ambient temperature and mechanical vibration.
AS720S Liquid-Cooled Series Inverter
Airborne installation, wide temperature range, flexible and reliable.
AS720D Series Refrigerant-Cooled Low-Harmonic Onboard Inverter Cabinet
Green, smaller in size, more energy-efficient, wide operating temperature range, flexible and reliable.
AS530UL Liquid-Cooled Series Inverter
Voltage range: Three-phase, 380–460V; Power range: 110kW to 400kW; Refrigerant cooling: R123a, R513a, R1233zd(E); Operating environment: Adaptable to a wide temperature range from -20℃ to 55℃; no power derating required even in outdoor environments up to 46℃; Product certification: UL-certified, suitable for sale in markets including the U.S.; Installation method: Wall-mounted, on-board installation—compared to air-cooled inverters, the unit’s volume is reduced by 50%, and it supports both horizontal and vertical installation.
AS570B Series Air-Cooled & Refrigerant-Plate Single-Unit Inverter
More reliable, more compact, and more flexible. The busbar capacitor is electrolyte-free, offering a longer service life and improved stability. It reduces the installation space required for circuit boards by 40%, and allows you to select the optimal algorithm based on different motor types and application scenarios.
AS710M Marine Engineering Dedicated Variable Frequency Drive
The Xindashida AS710M series inverter is a water-cooled engineering drive inverter featuring a common DC bus architecture. It can be configured as either a two-quadrant or a four-quadrant inverter through flexible unit combinations. Its control unit is equipped with a rich set of control programs, enabling it to meet the requirements of various applications—from power generation to power consumption. This product complies with CE certification requirements and holds a certification certificate from the China Classification Society.
ET6L Heavy-Duty High-Performance Inverter
Responding to the current characteristics and demands of the logistics market, Xindada has recently launched the ET6L series of variable frequency drives. Adhering to the latest-generation design philosophy, this product simplifies complexity while enhancing functionality, thereby effectively boosting production efficiency in logistics operations.
ME700 Air-Cooled Multi-Machine Drive Inverter for the Rubber Industry
Input voltage U4N: DC power supply: 517–800 VDC U6N: DC power supply: 816–1200 VDC
AS450 High-Performance Vector Inverter
The AS450 series variable frequency drives are the latest VFDs designed by Shanghai Xinglinna Xinshida Motor Co., Ltd. specifically for the Chinese market. This product is suitable for induction asynchronous motors. It adopts today’s internationally leading sensorless vector control technology, closed-loop vector control, and torque control technology. Not only does it deliver control performance that is just as excellent as those of high-end international VFDs, but it also takes into account China’s unique application characteristics, further enhancing the product’s reliability, environmental adaptability, and customization and industry-specific design capabilities. As a result, it can better meet the demands of various heavy-duty drive applications.
AS600 Series Frequency Converters for Lifting Applications
The AS600 series frequency converters specially designed for lifting applications are developed by Shanghai Xinglinna Xinshida Motor Co., Ltd. for the industrial crane sector, including such cranes as quay-side container gantry cranes, container portal cranes, pedestal cranes, and bridge cranes.
AS620 High-Performance Variable Frequency Drive for Lifting Applications
Input voltage: (380–460) V (-15% to +10%), three-phase power supply, voltage unbalance < 3% Input frequency: 45–65 Hz Transient voltage dip: When the input voltage drops below AC 300 V during operation with a three-phase AC (380–460) V power supply, undervoltage protection will be activated after 15 ms.
The AS180N(-B) builds upon the previous model with iterative upgrades, featuring a smaller footprint and increased power density. This unit comes standard with an LED operator; the B model comes standard with an LCD operator, both of which support external operator connections. The design boasts a more industrial aesthetic. Leveraging GVC vector control technology, this product further enhances its reliability, environmental adaptability, and customizable and industry-specific design capabilities, making it well-suited to meet a wide range of drive requirements.
AS-M210 Small High-Performance Inverter
Lightweight and compact design with consistent dimensions Achieves optimal product miniaturization in a rational and effective manner Combines light and heavy-load capabilities, enhancing product versatility All-aluminum base, 2g vibration resistance rating; fanless design for light loads up to 2.2kW
AS700 Air-Cooled Multi-Machine Drive Inverter
The AS700 series industrial-grade variable frequency drives are the latest-generation medium- and low-voltage high-power VFDs from Shanghai Xinglinna Xindada Motor Co., Ltd. They feature modularity, high reliability, and flexible scalability. These drives can provide complete motor drive system solutions or be supplied in modular form to meet OEM and system integration needs of users. They are suitable for applications in industries such as lifting equipment, pulp and paper, metals, mining, cement, power generation, chemical processing, oil and gas, and others.
S100 Logistics-Dedicated Distributed Starter
The Smart series of logistics-specific distributed drives comes in two configuration options: the S100 distributed starter and the S200 distributed variable-frequency drive. These drives are specially designed for conveying applications in industrial environments, featuring communication capabilities and I/O control functions. They are ideally suited for logistics distribution, airport and port operations, as well as various logistics conveying applications that require distributed drive systems.
PD110/PD210 High-Protective Inverter for Pump Applications
High protection rating IP55, 3C4-standard circuit board coating for enhanced resistance to high humidity, high dust levels, corrosion, and other harsh environmental conditions. Comprehensive and reliable protection features detect and safeguard against motor overload, water shortage, stall, and phase failure.
AS570 Light Commercial Multi-Split Air Conditioner Dedicated Inverter
Applicable whole-machine models: Heating units (coal-to-electric conversion), fan heaters, hot water units, water heaters, pool units, dryers, packaged units, multi-split systems, and more.
Full product line of variable frequency drives
Low-voltage general-purpose frequency converter
High-voltage frequency converter
Large-drive frequency converter