Emerson SK4402 Frequency Converter
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Emerson |
| Product Model | SK4402 |
| Product Series | Commander SK |
| Product Type | AC Frequency Converter |
| Main Function | AC motor speed control and variable-frequency operation |
| Input Voltage | 380–480 V AC ±10% |
| Input Phase | Three-phase |
| Input Frequency | 48–65 Hz |
| Input Current | 76.3 A (typical rating; verify against operating conditions) |
| Output Voltage | 0–480 V AC |
| Output Phase | Three-phase |
| Motor Power – Normal Duty | 45 kW |
| Motor Power – Heavy Duty | 37 kW |
| Output Current – Normal Duty | 83 A |
| Output Current – Heavy Duty | 74 A |
| Control Modes | V/F control and sensorless vector control |
| Speed Control Range | 0–1500 Hz |
| Communication Interface | RJ45 serial port |
| Communication Protocol | Modbus RTU |
| Analog Inputs | 1 analog input and 1 analog/digital input |
| Digital Inputs | 4 digital inputs |
| Analog Output | 1 analog output |
| Digital I/O | 1 digital input/output |
| Relay Output | 1 relay contact set |
| Braking | Supports an external braking resistor |
| Protection Rating | IP20 |
| Installation Type | Wall-mounted or cabinet-mounted |
| Cooling Method | Forced-air cooling |
| Dimensions | 510 × 298 × 310 mm |
| Weight | 29.9 kg |
FAQ
Q1: What is the main function of the Emerson SK4402 frequency converter?
The SK4402 is designed to regulate the speed and torque of three-phase AC motors by adjusting the output frequency and voltage. It is commonly used in industrial machinery, pumps, fans, and other motor-driven equipment that requires variable-speed operation.
Q2: What is the rated motor power of the SK4402?
The SK4402 supports two operating ratings: 45 kW under normal-duty conditions and 37 kW under heavy-duty conditions. The correct rating should be selected according to the motor load and required overload capacity.
Q3: What input power supply does the SK4402 require?
The drive is designed for a three-phase AC supply of 380–480 V, with an allowable voltage tolerance of ±10%. The supply frequency range is 48–65 Hz. It should not be connected to a single-phase supply.
Q4: Which motor control modes are available?
The Commander SK series supports V/F control and sensorless vector control. V/F control is suitable for many general-purpose applications, while sensorless vector control provides improved motor control performance where more demanding speed and torque response is required.
Q5: Can the SK4402 communicate with a PLC?
Yes. The SK4402 provides an RJ45 serial communication port and supports Modbus RTU. It can exchange operating commands, status information, and parameter data with a compatible PLC or control system after the communication settings are correctly configured.
Q6: Does the SK4402 support external braking resistors?
Yes. The drive supports an external braking resistor for applications that require controlled motor deceleration or frequent stopping. The resistor must meet the manufacturer’s resistance and power specifications to avoid damage to the drive.
Q7: What should be checked if the SK4402 reports an overcurrent fault?
Check for motor cable short circuits, motor insulation problems, mechanical overload, incorrect acceleration settings, and unsuitable motor parameters. Also inspect the drive output connections and confirm that the motor rating matches the selected operating mode. Disconnect power before inspecting electrical connections.
Q8: What should be considered when replacing an SK4402 frequency converter?
Before replacement, verify the input voltage, motor power rating, duty classification, output current, control wiring, communication settings, and braking resistor requirements. Back up the original parameter configuration where possible, and confirm that the replacement drive is compatible with the motor and machine before commissioning.
Emerson SK4402 Frequency Converter is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.
