3RT1916-2FK21 SIEMENS Power module

Description

3RT1916-2FK21 SIEMENS Power module

Product Dimensions：

Product Description

A SIEMENS Power Module (PM) is an electrical component designed to condition, convert, and supply power to either the internal electronics of an automation system or to the external motor/actuator.

In PLC Systems (Power Supply Modules): These modules convert incoming line voltage (AC or DC) into the required stable, regulated direct current (e.g., $24\text{V }DC$) needed to operate the CPU, I/O, and communication modules via the backplane bus. They are critical for the system’s electrical stability and fault tolerance.

In Drive Systems (Power Sections): These modules receive AC or DC link power and perform the final power conversion (typically using IGBTs) to provide the regulated, variable-frequency output required to precisely control the speed and torque of an industrial motor. They often contain power conditioning and safety circuitry.

Product Parameters

Parameters are specific to the type (Supply vs. Drive) but generally cover:

Product Advantages

1. High Reliability: Designed with robust components and circuits to ensure stable power delivery and long service life, even in challenging industrial environments.
2. Wide Input Tolerance: Often feature a broad input voltage range, allowing for stable operation even with significant fluctuations in the primary electrical supply.
3. Space Efficiency: Optimized design allows for side-by-side mounting or integrated placement in modular racks, minimizing control cabinet footprint.
4. Integrated Diagnostics: Provides status LEDs and system diagnostic messages (e.g., overload, low voltage) to the central controller, simplifying troubleshooting.
5. Safety and Compliance: Incorporates international standards for electrical safety, short-circuit protection, and electromagnetic compatibility (EMC/EMI).
6. Energy Efficiency (Drive PMs): Utilizes modern power electronics to minimize energy waste and, in some cases, features regenerative capabilities to feed braking energy back into the grid.

Precautions

• Qualified Installation: Installation, wiring, and high-voltage connections must be executed only by qualified electricians according to local electrical codes and safety regulations.
• Fusing and Protection: Ensure external protective devices (fuses or circuit breakers) are sized and installed correctly upstream of the module’s input.
• Thermal Management: Adhere strictly to the specified ambient temperature and maintain adequate ventilation clearances to prevent overheating and thermal derating.
• Grounding: Proper, low-impedance grounding of the module and the control cabinet is critical for safety and to ensure effective operation of integrated noise filters.
• Drive Load Matching (Drive PMs): The power module must be correctly sized and matched to the connected motor’s rated voltage, current, and load profile.

Product Applications

Power Modules are fundamental to system operation and performance across industrial automation:

• PLC System Power: Providing the reliable $24\text{V }DC$ control voltage for all CPU, communication, and I/O components in a rack or distributed system.
• Industrial Drive Systems: Forming the crucial power output stage of variable frequency drives (VFDs) for controlling pumps, fans, compressors, and conveyors.
• Decentralized I/O Power: Supplying power to remote I/O stations (field-level I/O blocks) via robust industrial networks.
• Critical Systems: Used in systems requiring enhanced reliability, often incorporating features for managing power loss, buffering, or supporting redundant power paths.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Please make an inquiry for more models：