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Siemens 6SL3255-0VA00-5AA0 CU230P-2 HVAC Control Unit for SINAMICS G120X

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Siemens 6SL3255-0VA00-5AA0

by Siemens

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OverviewElevate your building’s climate management with the Siemens 6SL3255-0VA00-5AA0, a specialized CU230P-3 HVAC control unit crafted for SINAMICS G120X inverters. This robust unit is engineered to deliver exceptional performance and efficiency across heating, ventilation, and air conditioning (HVAC) systems, integrating seamlessly into modern automation networks. Developed for precise regulation and energy savings, the 6SL3255-0VA00-5AA0 is a vital element for intelligent climate regulation. Its advanced capabilities streamline the management of intricate HVAC setups, from regulating air handling units and modulating pumps to enhancing fan operation. It empowers facility managers and system integrators to achieve superior comfort levels while significantly reducing operational expenses through sophisticated energy management features. Incorporating Siemens’ renowned engineering excellence, the 6SL3255-0VA00-5AA0 guarantees dependability and enduring performance, making it an essential component for any advanced HVAC infrastructure.Key Features Dedicated HVAC Optimization: Designed for air conditioning, ventilation, and pumping systems, providing customized control functions for peak efficiency and energy conservation. Seamless G120X Integration: Connects flawlessly with SINAMICS G120X series inverters, creating a unified, high-performance drive system for various HVAC applications. Integrated Safety Functionality: Includes Safe Torque Off (STO) functionality, meeting Safety Integrity Level 2 (SIL2) and Performance Level d (PL d) for enhanced operational security. Versatile Communication Protocols: Supports industry-standard communication via BACnet MS/TP and Modbus RTU, ensuring flexible and easy integration into existing automation networks. Comprehensive I/O Connectivity: Features multiple configurable digital and analog inputs, along with relay outputs, allowing extensive connectivity with sensors, actuators, and other system components. Built-in PID Controller: Incorporates an integrated PID controller for precise regulation of temperature, pressure, and flow rates, optimizing system performance and stability. Effortless Commissioning: Facilitates rapid and straightforward setup through SINAMICS Startdrive within the TIA Portal, simplifying the commissioning process for installers and engineers. Technical Specifications Siemens Code: 6SL3255-0VA00-5AA0 Series: SINAMICS G120X Control Unit Type: CU230P-3 HVAC Application Area: Heating, Ventilation, Air Conditioning (HVAC) Systems Safety Function: Safe Torque Off (STO) according to SIL2 / PL d Communication Interfaces: Modbus RTU, BACnet MS/TP Digital Inputs: 6 (configurable) Analog Inputs: 2 (selectable 0–10 V or 4–20 mA) Relay Outputs: 2 (programmable) Integrated Control: Proportional-Integral-Derivative (PID) Controller Operating Temperature Range: –10 °C to +50 °C Mounting: Direct mounting onto SINAMICS G120X Power Module Applications Advanced Air Handling Units (AHU): Provides precise regulation for fans, dampers, and coils within air handling units, ensuring optimal indoor air quality and temperature management. Energy-Efficient Pumping Systems: Optimizes the operation of pumps in heating and cooling circuits, reducing energy consumption and extending equipment lifespan. Smart Fan and Ventilation Control: Manages ventilation and air extraction systems in commercial and public buildings, dynamically adjusting airflow based on demand. Climate Control in Commercial Facilities: Enhances the efficiency and comfort of climate control systems in offices, retail spaces, and other commercial environments. Building Automation Integration: Acts as a pivotal component in comprehensive building automation systems, facilitating centralized control and monitoring of HVAC infrastructure. Why ChooseOpt for the Siemens 6SL3255-0VA00-5AA0 to integrate a robust, high-performance HVAC control solution into your SINAMICS G120X inverter system. This unit is meticulously designed for precision, efficiency, and seamless operation, ensuring your climate control systems run optimally for comfort and cost savings. Its advanced safety features and versatile communication options make it an intelligent choice for modern building management.Order NowEnhance your HVAC system’s capabilities. Order the Siemens 6SL3255-0VA00-5AA0 today and experience superior climate control and energy efficiency.FAQWhat is the primary application of the Siemens 6SL3255-0VA00-5AA0?It is specifically designed for Heating, Ventilation, and Air Conditioning (HVAC) systems, providing tailored control functions for optimal efficiency.Which series of inverters is this control unit compatible with?This control unit is designed for seamless integration with SINAMICS G120X series inverters.Does this unit include safety features?Yes, it features Safe Torque Off (STO) functionality, achieving Safety Integrity Level 2 (SIL2) and Performance Level d (PL d).What communication protocols does it support?It supports industry-standard communication via BACnet MS/TP and Modbus RTU.Can this control unit help with energy savings?Absolutely, it provides dedicated HVAC optimization and an integrated PID controller to maximize efficiency and achieve significant energy savings.

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PRODUCT DETAILS

Siemens 6SL3255-0VA00-5AA0

Overview

This is a genuine Siemens component from the Variable Frequency Drives family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Siemens catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Siemens automation ecosystem
  • Engineered to integrate inside Variable Frequency Drives installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Siemens equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Siemens platform with documented conversion notes for the Variable Frequency Drives family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Siemens Code: 6SL3255-0VA00-5AA0
  • Series: SINAMICS G120X
  • Control Unit Type: CU230P-3 HVAC
  • Application Area: Heating, Ventilation, Air Conditioning (HVAC) Systems
  • Safety Function: Safe Torque Off (STO) according to SIL2 / PL d
  • Communication Interfaces: Modbus RTU, BACnet MS/TP
  • Digital Inputs: 6 (configurable)
  • Analog Inputs: 2 (selectable 0–10 V or 4–20 mA)
  • Relay Outputs: 2 (programmable)
  • Integrated Control: Proportional-Integral-Derivative (PID) Controller
  • Operating Temperature Range: –10 °C to +50 °C
  • Mounting: Direct mounting onto SINAMICS G120X Power Module

Applications

  • Advanced Air Handling Units (AHU): Provides precise regulation for fans, dampers, and coils within air handling units, ensuring optimal indoor air quality and temperature management.
  • Energy-Efficient Pumping Systems: Optimizes the operation of pumps in heating and cooling circuits, reducing energy consumption and extending equipment lifespan.
  • Smart Fan and Ventilation Control: Manages ventilation and air extraction systems in commercial and public buildings, dynamically adjusting airflow based on demand.
  • Climate Control in Commercial Facilities: Enhances the efficiency and comfort of climate control systems in offices, retail spaces, and other commercial environments.
  • Building Automation Integration: Acts as a pivotal component in comprehensive building automation systems, facilitating centralized control and monitoring of HVAC infrastructure.

Why Choose the 6SL3255-0VA00-5AA0?

Opt for the Siemens 6SL3255-0VA00-5AA0 to integrate a robust, high-performance HVAC control solution into your SINAMICS G120X inverter system. This unit is meticulously designed for precision, efficiency, and seamless operation, ensuring your climate control systems run optimally for comfort and cost savings. Its advanced safety features and versatile communication options make it an intelligent choice for modern building management.

Availability & Shipping

  • In stock: 6SL3255-0VA00-5AA0 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 6SL3255-0VA00-5AA0 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

It is specifically designed for Heating, Ventilation, and Air Conditioning (HVAC) systems, providing tailored control functions for optimal efficiency.

Machine down? We ship parts the same day.

New, surplus, and refurbished Siemens inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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Product Condition & Firmware

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