Rittal 7030140 CMC III Analog Airflow Sensor - CAN bus
Part Number: 7030140
Quick Summary
Rittal CMC III analog airflow sensor monitors enclosure environments and supports IT, industrial, and facility-management applications. Engineers often grapple with unreliable airflow data and lengthy commissioning, which can disrupt uptime and increase maintenance costs. While certifications like CE marking and IP protection are common expectations for safety and reliability, always verify these requirements in the official datasheet. The DK 7030.140 design emphasizes plug-and-play deployment, direct CAN bus connectivity, and bus-link capability, delivering scalable monitoring across multiple enclosures. This combination helps reduce risk, accelerate deployment, and improve energy management, aligning IT and facility programs with procurement standards.
Product Information
Extended Description
7030140 Rittal: DK CMC III Analog airflow sensor, WHD: 110x30x40 mm
Article number
DK 7030.140
Design
Analog airflow sensor
Product description
CMC III sensors are used for monitoring the physical environment and can be connected directly to the PU via a CAN bus connection cable RJ45. The sensors may also be linked together to form a bus.
Benefits
Fast connection and automatic detection via plug & play
Applications
Enclosure monitoring in IT, industry and facility management
Function principle
Settings can be made via the CMC III processing unit or IoT interface
Material
Plastic | Front: Smooth | Enclosure: Textured
Colour
Front: RAL 9005 | Enclosure: RAL 7035
Supply includes
Sensor | Mounting plate | Assembly parts | External airflow sensor including assembly parts
Connection to the CAN bus
Direct
Interfaces
2 x RJ45 CAN bus
No. of participants per IoT interface (max.)
10
No. of participating PU compact (max.)
4
No. of participating PU (max.)
10
No. of PDU devices (max.)
5
Number subscribers per PDU note
Max. 5 p. for power supply with PoE
Measuring technique
Differential temperature measurement
Dimensions
Width: 110 mm | Height: 30 mm | Depth: 40 mm
Operating temperature range
0 °C...55 °C
Ambient humidity (non-condensing)
5...95 %
Packs of
1 pc(s).
Weight/pack
0.427 kg
PCF per pack (cradle-to-gate)
1.6 kg CO2 eq (Cat B)
Note on PCF category
Category B: PCF value (cradle-to-gate) based on the product weight, approximately calculated and self-declared
Customs tariff number
85319000
EAN
4028177659520
ETIM 9
EC002627
ECLASS 8.0
27189253
Product description
DK CMC III Analog airflow sensor, WHD: 110x30x40 mm
CAN bus connectivity with direct RJ45 interfaces enables fast installation, automatic device detection, and scalable sensor networks. Business impact includes reduced commissioning time and lower wiring costs, with straightforward expansion as system needs grow. The application spans IT enclosure monitoring, industrial facilities, and building management where reliable airflow data keeps critical equipment within safe operating margins. The differential temperature measurement provides precise airflow assessment, translating into proactive cooling control and energy efficiency. The compact form factor (WHD 110 x H 30 x D 40 mm) and included mounting plate save space inside crowded enclosures, simplifying retrofits and new installations alike. Operating conditions of 0 °C to 55 °C and non-condensing humidity of 5–95% ensure dependable operation in data centers and harsh industrial environments. The system supports bus linking for multi-sensor configurations, with up to 10 subscribers per IoT interface and 4 PU compact participants, enabling scalable, IP-based monitoring across larger sites. Sustainability metrics are addressed with a PCF of 1.6 kg CO2 eq per pack, category B, reflecting responsible manufacturing and packaging choices. Overall, this sensor balances performance, ease of deployment, and long-term maintenance, making it a robust choice for enclosure-monitoring programs in IT, industrial, and facility-management ecosystems.
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FAQs
The DK 7030.140 is designed for direct CAN bus connection via RJ45 cables. Begin by mounting the sensor with the included hardware, connect the two RJ45 CAN bus interfaces to your PU or IoT interface, and link multiple sensors as needed to form a bus. The plug‑and‑play capability automatically detects new devices, reducing commissioning time and wiring complexity on IT racks or industrial enclosures.
Its differential temperature measurement provides accurate airflow data critical for IT cooling. The compact dimensions (W 110 mm x H 30 mm x D 40 mm) fit tight enclosure spaces, and the two CAN bus interfaces support scalable sensor networks. Direct CAN bus connection and easy bus linking enable reliable monitoring across multiple IT racks with minimal misconfiguration risk.
Key specs include differential temperature measurement, operating range 0 to 55 °C, ambient humidity 5–95% non-condensing, dimensions 110x30x40 mm, and weight 0.427 kg per pack. Interfaces are 2 x RJ45 CAN bus with up to 10 subscribers per IoT interface, suitable for IT, industrial, and facility-management monitoring networks.
The product references ETIM 9 EC002627 and ECLASS 8.0 27189253 classifications, supporting procurement interoperability. Customs tariff is listed as 85319000, and the EAN is 4028177659520. For compliance certifications such as CE or IP ratings, consult the official datasheet to confirm current approvals and regional applicability.
Benefits include reduced commissioning time due to plug‑and‑play deployment, lower wiring complexity from CAN bus networking, and proactive cooling management that can decrease energy consumption. The sensor’s durable enclosure and operational range support long-term reliability in data centers and industrial facilities, contributing to lower maintenance costs and improved uptime.