3SU1851-0NB00-2AA2 SIEMENS Power module

Description

3SU1851-0NB00-2AA2 SIEMENS Power module

Product Dimensions：

Product Description

A SIEMENS Power Module is a specialized industrial electronic unit responsible for converting, conditioning, or controlling electrical energy within an automation system or a motor drive application.

In Drive Systems (VFD Power Modules): The module is a modular component of a frequency converter (drive). It contains the power electronic circuitry (e.g., IGBTs) to convert the incoming AC or DC line supply into a variable-frequency, variable-voltage output to precisely control the speed and torque of an AC motor.

In Automation Systems (Power Supply/PSU Modules): These modules convert the primary supply voltage (typically $120/230VAC$ or higher) into the required stable low voltage for operating the control system electronics (e.g., $24VDC$ for PLCs and I/O modules). They also include modules for redundancy, selectivity, and buffering to ensure system availability.

Product Parameters

Product Advantages

1. Energy Efficiency: Advanced power electronic technology (like high-efficiency IGBTs and energy recovery capabilities) minimizes power loss, leading to reduced energy consumption and lower operational costs.
2. Modular and Service-Friendly: Designed for quick installation, easy replacement (often plug-and-play), and scalability, allowing users to adapt the system power or motor control capacity as needs change.
3. High Reliability and Uptime: Integrated protection functions (overload, short-circuit, undervoltage) and optional redundancy/buffering modules (for power supplies) ensure maximum system availability and protect connected loads.
4. Optimized for Industrial Loads: Specifically designed to handle the high demands and dynamic load changes of industrial electric motors and automation devices.
5. Seamless Integration: Fully compatible with the Siemens control and engineering platforms (e.g., SINAMICS and SIMATIC, configured via TIA Portal), simplifying commissioning and diagnostics.

Important Notes (Precautions)

• Thermal Management: Adhere strictly to the required mounting orientation (e.g., vertical only) and ensure adequate cooling air flow in the cabinet, as operating temperature directly impacts module lifespan.
• Earthing and Shielding: Correct grounding practices and the use of specified shielded cables are critical to minimize electromagnetic interference (EMI) and ensure stable operation.
• Load Matching: For VFD Power Modules, ensure the module’s continuous current rating and overload capacity match the motor’s full-load current and the application’s duty cycle.
• Braking Requirements: Determine if the application requires dynamic braking or regenerative feedback and select a module with the appropriate hardware (e.g., integrated braking chopper) accordingly.
• Hazardous Voltages: Installation and maintenance must only be performed by qualified personnel due to the presence of high voltages and the large capacitors that can store dangerous charge even after power-off.

Product Applications

• Motor Control: Providing precise speed and torque control for industrial applications like pumps, fans, compressors, conveyors, extruders, and machine tools (part of a VFD system).
• Process Power Supply: Delivering stable and regulated $24VDC$ power to the entire automation infrastructure, including PLCs, I/O, HMI panels, and sensors (SITOP Power Supply Modules).
• Infrastructure: Used in large-scale building automation and water/wastewater treatment for efficient operation of flow control and ventilation systems.
• Safety-Critical Systems: Utilizing integrated safety functions to implement controlled stopping, preventing unexpected motor startup, and limiting speed for safe interaction with machinery.
• Energy Recovery: Employing regenerative power modules to feed braking energy back into the main power grid, reducing overall energy consumption in highly dynamic applications like lifts and centrifuges.

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

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