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SiemensRooftop Unit Controller Kits

Siemens Rooftop Unit Controller Kit POL648.10/RTU-P74

The SIEMENS Thermostat Controller (MPN POL648.10/RTU-P74) is a rooftop unit controller kit with 21 physical inputs and outputs, operating on 24V AC/DC. It supports BACnet/IP, BACnet MS/TP, Climatix IC, Modbus/IP…

SKU 3G-OTH-69136

Also listed as: POL64810RTUP74 · POL648 10 RTU P74 · POL648-10-RTU-P74

Brand
Siemens
Item
Rooftop Unit Controller Kit POL648.10/RTU-P74
Category
Rooftop Unit Controller Kits
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Manufacturer Part Number
POL648.10/RTU-P74
Type
IC/Modbus/IP/Modbus RTU/OPC, Gray
Voltage
24V AC/DC
Key Features
Standard USB Service Connection for Wi-Fi Stick Access
Housing Color
Gray
Compatible System Type
Rooftop Units
Humidification Control
Yes
Number of Relay Inputs/Outputs
21 Physical Inputs and Outputs

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Thermostat Controller (MPN POL648.10/RTU-P74) is a rooftop unit controller kit with 21 physical inputs and outputs, operating on 24V AC/DC. It supports BACnet/IP, BACnet MS/TP, Climatix IC, Modbus/IP, Modbus RTU, and OPC protocols, and includes a standard USB service connection for Wi-Fi stick access. This gray controller features humidification control and is designed for rooftop units.

Frequently Asked Questions

What is the SIEMENS POL648.10/RTU-P74 thermostat controller used for?

The SIEMENS POL648.10/RTU-P74 is a rooftop unit controller kit used in commercial HVAC systems to manage heating, cooling, ventilation, and humidification. It supports BACnet/IP, BACnet MS/TP, Modbus/IP, Modbus RTU, and OPC protocols for building automation integration.

What are the specifications of the SIEMENS POL648.10/RTU-P74?

The SIEMENS POL648.10/RTU-P74 operates on 24V AC/DC, has 21 physical inputs and outputs, and supports BACnet/IP, BACnet MS/TP, Climatix IC, Modbus/IP, Modbus RTU, and OPC protocols. It includes a standard USB service connection for Wi-Fi stick access and features humidification control.

Where to buy the SIEMENS POL648.10/RTU-P74 worldwide?

3G Electric supplies the SIEMENS POL648.10/RTU-P74 worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this rooftop unit controller kit.

How to install the SIEMENS POL648.10/RTU-P74 controller?

Install the SIEMENS POL648.10/RTU-P74 by mounting it in the rooftop unit control panel, connecting 24V AC/DC power, and wiring the 21 physical inputs and outputs per the wiring diagram. Use the USB port for Wi-Fi stick setup. Follow SIEMENS guidelines for BACnet or Modbus network configuration.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens rooftop unit controller kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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