Security Camera and Access Control Cooling Cooling Solutions -- DC Fans | Herays
Application Solution

Security Camera and Access Control Cooling

Small-format airflow for security devices and intelligent access systems

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Problem Space

Industry Challenges

Understanding the specific thermal and environmental demands of Security Camera and Access Control Cooling environments is the foundation of every Herays solution.

Security surveillance and physical access control equipment — PTZ cameras, multi-channel NVR systems, outdoor enclosure controllers, biometric access terminals, and gate barrier electronics — operates in environments that combine high reliability requirements with limited space, low-power auxiliary supplies, and exposure to outdoor conditions that degrade uncertified components rapidly. As AI-enabled edge inference accelerates on-device, the thermal load from embedded SoC processors is increasing significantly — what once ran cool enough without a fan now requires active cooling to maintain inference accuracy and component life.

Cooling engineering requirements for security and access control equipment:

  • 12V DC operation for PoE and DVR integration — NVR enclosures, DVR chassis, and access control panels predominantly operate on 12V auxiliary power, sourced from PoE switches or dedicated 12V PSU rails. Fans must match this voltage without an intermediate converter that would consume power from a budget-constrained supply.
  • Compact 60–80 mm format for enclosure constraints — security equipment enclosures are designed for wall or ceiling mount; internal dimensions typically accommodate 60, 70, or 80 mm fans rather than the 120 mm standard industrial size. Herays supplies compact format fans for these applications.
  • IP66 or higher for outdoor PTZ enclosures — PTZ camera housings and outdoor access control terminals must withstand rain jets, high-pressure cleaning, and in some climates, salt fog and sand. The fan assembly in actively-cooled outdoor enclosures must meet the same IP rating as the enclosure itself.
  • Ultra-low noise for indoor access control — biometric terminals and access readers in office lobbies, hospital corridors, and hotel entrances operate within arm’s reach of occupants. Audible fan noise is unacceptable; fans must operate at 25 dBA or below in these environments.
  • Wide temperature range for outdoor operation — outdoor security infrastructure in northern climates must cold-start reliably at −30°C and continue operating at +55°C summer ambient. This range eliminates sleeve bearings and requires motors with low-viscosity lubricants specified for low-temperature operation.
  • Long maintenance-free service — security cameras are typically mounted at height and cannot be serviced without a lift. Fan MTBF must support a 5-year service-free interval as a minimum, which at actual operating temperatures requires careful specification against manufacturer curves.

Herays supplies DC axial fans in both 120 mm standard and compact formats for security camera and access control cooling applications. The 12V variants serve NVR enclosures and access control panel cooling; outdoor IP-rated variants are available for sealed enclosure applications.

  • HR1225 12V — 120×120×25 mm, 134 CFM, ball bearing, CE/RoHS. For NVR enclosures, multi-channel DVR chassis, and access control server cabinets with standard 120 mm fan bays.
  • Compact 60–80 mm fans (12V, ball bearing) — available for smaller enclosures, PTZ housings, and embedded access control terminal cooling. Contact Herays with enclosure dimensions and power budget for specific model recommendations.

For sealed outdoor enclosures with active cooling, Herays can supply IP-rated fan assemblies with gasket sealing appropriate for PTZ camera housings and outdoor access control equipment rated to IP66.

Does a PTZ camera housing really need a fan if it has a thermal path through the housing? Traditional analog PTZ cameras with passive housing cooling are marginal at best in direct-sun summer conditions — enclosure temperatures routinely exceed 70°C, accelerating lubricant degradation in pan/tilt mechanisms and reducing image sensor life. AI-capable PTZ cameras with on-device inference have 3–5× higher SoC power than their predecessors; passive cooling is generally insufficient for these platforms without a significant increase in housing mass and fin area.

How do I manage condensation risk in a fan-cooled outdoor enclosure? Use a fan with a sealed motor (IP54 or higher) and design the enclosure ventilation path to include a labyrinthine or downward-facing inlet that prevents direct water ingress. A small desiccant pack in the enclosure absorbs residual moisture. Avoid designs that draw warm moist air in during the day and then cool it below the dew point at night — this is the most common cause of condensation damage in outdoor electronics enclosures.

What is the minimum fan specification for an NVR enclosure running AI analytics? An NVR with 16 channels of AI motion detection and object classification may dissipate 25–40 W from the inference SoC alone. At 20°C temperature rise allowance in a 40°C ambient, you need approximately 6–8 CFM of clean airflow across the SoC heatsink — a compact 80 mm fan at 1,500 RPM is the practical minimum; a 120 mm fan at 800 RPM provides equivalent airflow at significantly lower noise.

Contact Herays for compact fan specifications, IP-rated outdoor variants, and OEM pricing for security equipment manufacturing programs.

Herays Approach

Our Solution

Precision-engineered DC fan technologies tailored to the performance and reliability requirements of Security Camera and Access Control Cooling applications.

Why Herays

Key Features for Security Camera and Access Control Cooling

Compact cooling

Small fan choices for cameras, controllers, and smart access devices.

Always-on reliability

Options for continuous operation in security electronics.

Low-voltage support

5V, 12V, and other DC options for embedded systems.

Application Engineering

Ready to find the right cooling solution for Security Camera and Access Control Cooling?

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