Siemens Room Operator Unit Wall 133.4 mm 88.4 mm IP30 30V

RS Stock No.:: 287-8866
Mfr. Part No.:: QMX3.P74 / S55624-H106
Brand:: Siemens

Siemens Room Operator Unit Wall 133.4 mm 88.4 mm IP30 30V

Subtotal (1 unit)*

$2,277.73

(exc. GST)

$2,505.50

(inc. GST)

FREE delivery for orders over $80.00 ex GST

Stocked by manufacturer

Ready to ship from 10 December 2026

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Units	Per unit
1 +	$2,277.73

*price indicative

RS Stock No.:: 287-8866
Mfr. Part No.:: QMX3.P74 / S55624-H106
Brand:: Siemens

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Device Type	Room Operator Unit
	Product Type	Room Device
	Mount Type	Wall
	Height	133.4mm
	Length	88.4mm
	Width	133.4mm
	Maximum Supply Voltage	30V
	Minimum Operating Temperature	0°C
	Maximum Operating Temperature	+50°C
	IP Rating	IP30
	Standards/Approvals	CSA, UL
	Series	QMX3

	Select all
	Brand Siemens
	Device Type Room Operator Unit
	Product Type Room Device
	Mount Type Wall
	Height 133.4mm
	Length 88.4mm
	Width 133.4mm
	Maximum Supply Voltage 30V
	Minimum Operating Temperature 0°C
	Maximum Operating Temperature +50°C
	IP Rating IP30
	Standards/Approvals CSA, UL
	Series QMX3

RoHS Status: Not Applicable

COO (Country of Origin):: CN

Siemens QMX3 Series Room Device, 0 to 50°C Operating Temperature, IP30 - QMX3.P74 / S55624-H106

This room device is a wall-mounted room operator unit designed for building automation environments using KNX PL-Link, KNX S‑mode or KNX LTE‑Mode. It measures and displays room conditions such as temperature, humidity and CO2 (depending on type), provides touchkey operation and LEDs for status indication, and receives power and configuration from the automation station via the KNX/PL‑Link interface.

Features and Benefits:

• 0 to 50°C measuring range enables broad commercial temperature monitoring
• KNX PL-Link Interface allows plug & play commissioning
• 30V maximum supply supports low‑voltage bus powering
• IP30 rating permits protected indoor wall installation
• UL and CSA approvals support standards‑based integration

Applications

• Used with automation stations for room‑level control functions
• Suitable for controlling lighting, blinds and scene selection
• Ideal for CO2, humidity and temperature monitoring in offices
• Used with KNX S‑mode for PID temperature or ventilation control
• Suitable for LTE‑Mode sensor reporting where supported