POL638.70/STD

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Overview of Siemens POL638-70-STD Climatix HVAC Controller

The Siemens POL638-70-STD is a freely programmable HVAC controller designed for ventilation, air conditioning, and refrigeration systems. It features 21 flexible I/O points, Ethernet communication, RS485, KNX, Modbus, JSON, and PL-Link interfaces for versatile building automation network integration. The controller supports graphical programming via the SAPRO tool and includes USB and SD card support for easy configuration and firmware updates.

Key Features

  • 21 universal I/O points including analog inputs, digital inputs, relay, and triac outputs.
  • Supports Ethernet, RS485, KNX, Modbus, JSON, and PL-Link communication protocols.
  • Freely programmable using SAPRO graphical programming editor.
  • Integrated web server for local or remote configuration via standard browsers.
  • USB interface for easy connection with service tools and programming.
  • SD card support for program backup and firmware updates.
  • Expandable with Climatix extension modules via peripheral bus.
  • Robust communication interfaces, including Modbus RTU and KNX-TP1 process bus.
  • Operating temperature range from -20 to +60 °C.

Technical Specs

Specification Details
Model POL638-70-STD
Power Supply AC 24 V ±20% or DC 24 V ±10%
Number of I/Os 21 (universal analog/digital, relay, triac)
Communication Ethernet, RS485, KNX, Modbus, JSON, PL-Link
Programming Tool SAPRO graphical editor
Interfaces USB, SD card, Ethernet port, RS485
Dimensions (L×W×H) 180 × 110 × 75 mm
Operating Temperature -20 to +60 °C
Protection Class IP20
Weight Approx. 400 g

Applications / Use Case

Used for flexible and scalable HVAC control in commercial and industrial buildings, enabling efficient management of ventilation, air conditioning, and refrigeration systems.

Siemens provides comprehensive support, firmware updates, and engineering tools for easy integration and maintenance.

POL638.70/STD

$0.00

  • ACHIEVING

    4.0

    average rating

  • With

    95%

    positive reviews

  • LESS THAN

    1%

    return rate

Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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