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SiemensRooftop Unit Controller Kits

Siemens Thermostat Controller: BACnet/IP/BACnet MS/TP/Climatix IC/Modbus/IP/Modbus RTU/OPC

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

Brand
Siemens
Item
Thermostat Controller: BACnet/IP/BACnet MS/TP/Climatix IC/Modbus/IP/Modbus RTU/OPC
Category
Rooftop Unit Controller Kits
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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
View Full Spec Sheet

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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.

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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