Atlas PCG150FLW43-32G
150mm x 150mm x 32mm Frame
24V DC Platform
Marine-Grade Thermal Solutions for Naval & Shipboard Electronics
Engineered for Salt Fog Corrosion, Acoustic Stealth, and High-Impact Shock Survival
Naval Cooling | Shipboard Electronics | Salt Fog Resistant | MIL-DTL-901E | Acoustic Stealth | Sonar Systems | AESA Radar | Submarine | MIL-STD-461 | IP68 | 28VDC | 400Hz
Solution Overview
Modern naval platforms—from surface combatants to nuclear submarines—operate in one of the most electrically and mechanically hostile environments on earth. Shipboard electronics face relentless salt-fog corrosion, high-humidity condensation, underwater explosion shock loads, and strict acoustic signature requirements that standard commercial cooling hardware cannot survive. Perseus delivers marine-grade thermal management systems validated to the full suite of naval defense specifications. Our fan assemblies, blower modules, and integrated chassis solutions provide mission-critical cooling for AESA radar arrays, sonar processing cabinets, combat management systems, and submarine life support electronics—engineered to remain operational through the most demanding maritime combat scenarios.
Application Scenarios
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Shipboard Radar & Weapon Control Systems
High-reliability cooling for AESA radar arrays and fire control consoles, maintaining thermal stability through salt-fog, humidity, and combat shock loads.
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Sonar Signal Processing
Ultra-low-noise thermal management for passive and active sonar electronics, meeting the strictest acoustic stealth requirements of ASW and submarine platforms.
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Below-Deck Communication & Data Centers
Reliable forced-air cooling for satellite terminals, bridge systems, and shipboard data centers in high-humidity, condensation-prone below-deck compartments.
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Submarine Life Support & Mission Electronics
Acoustically silent, low-vibration fan systems for confined submarine compartments with zero tolerance for mechanical failure or noise signature.
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Electronics Cabinet & PC Card Rack Cooling
Rack-mounted fan and heat exchanger assemblies for high-density electronics cabinets and PC card racks aboard surface combatants
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Radar Antenna & Mast-Mounted Component Cooling
Specialized spot cooling solutions for mast-mounted radar antennas and exterior ship surface equipment exposed to direct salt spray, UV radiation, and extreme thermal cycling.
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Power Supply & Transformer Cooling
Forced-air and liquid-assisted cooling for shipboard power supplies, frequency converters, and transformer units, maintaining MIL-STD-461 EMI compliance to protect adjacent signal systems.
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Electronic Warfare (EW) & SIGINT Systems
EMI-stealth cooling for shipboard EW suites and SIGINT receivers, where any conducted or radiated emissions from cooling hardware risk compromising sensitive signal interception and jamming operations.
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Chilled Water Heat Exchanger & Rack Cooling Units
Liquid-cooled heat exchanger and fan assemblies utilizing the vessel's chilled water supply for high-heat-load rack cooling on Columbia-class and Virginia-class submarines and San Antonio-class transport docks.
Core Challenges
- Salt Fog Corrosion & Marine Environment Degradation：Continuous exposure to saline-laden air and sea spray rapidly degrades unprotected metals, motor windings, and PCB assemblies. Standard industrial cooling hardware fails within months in shipboard environments, creating critical system vulnerabilities.
- Acoustic Stealth & Low-Noise Signature：Anti-submarine warfare (ASW) platforms and submarines require cooling systems that generate zero detectable acoustic emissions. Any airborne or structure-borne noise from fan systems risks compromising sonar detection capability and vessel stealth signature.
- High-Impact Shock from Underwater Explosions (UNDEX)：Naval vessels are subject to shock loads from near-miss underwater explosions and combat maneuvers. MIL-DTL-901E Grade A shock requirements demand that cooling systems survive extreme transient impulse loads without mechanical failure or operational interruption.
- Extreme Humidity & Condensation in Sealed Compartments：Below-deck compartments maintain near-100% relative humidity with frequent condensation cycles. Unprotected motor electronics experience dielectric breakdown and PCB corrosion, causing unpredictable failures in mission-critical cooling systems.
- Multi-Standard EMI Compliance in Dense Signal Environments：Shipboard electronics operate in extremely dense RF environments where cooling system emissions can interfere with radar, sonar, and communication systems. EMC evidence should be reviewed against the vessel cable layout, grounding path, operating mode, and final acceptance plan.
How we solve it
1. Multi-Layer Marine Corrosion Defense:
Unprotected cooling hardware corrodes rapidly in salt-laden shipboard environments, creating critical failure points in mission systems. Our fan assemblies utilize marine-grade anodized aluminum and 316L stainless steel construction with multi-layer PTFE protective coatings, reviewed against salt-fog exposure planning such as MIL-STD-810H Method 509.7 where required—delivering reduced corrosion risk across the intended service interval when coating, drainage, and maintenance conditions are controlled.
2. Aero-Acoustic Optimization for Stealth Operations:
Cooling fans operating near sonar arrays and ASW electronics risk generating acoustic signatures that compromise detection capability and vessel stealth. Our aero-acoustically optimized blade profiles, precision dynamic balancing, and vibration-isolated mounting systems minimize both airborne and structure-borne noise emissions to meet the strictest submarine and ASW platform acoustic requirements—without sacrificing thermal performance.
3. MIL-DTL-901E Shock-Hardened Construction:
Underwater explosion shock loads and combat maneuvers subject shipboard cooling systems to extreme transient impulse forces that destroy standard hardware. Our housings are engineered from high-strength marine alloys with shock-hardened bearing assemblies and GMZ/GMX series adaptive damping isolators, designed for program-specific review against MIL-DTL-901E shock requirements, with continued-operation acceptance defined by the final vessel test plan.
4. Full-Spectrum EMI Stealth & IP68 Sealing:
Dense shipboard RF environments demand cooling systems that reduce emission risk near radar, sonar, and communication chains, while sealed compartments require moisture-ingress control. Our BLDC motors feature advanced internal EMI filtering and conductively grounded housings designed for MIL-STD-461G CE102/RE102 review, combined with fully encapsulated IP68-rated motor windings and PCBAs—reducing electromagnetic-emission and moisture-ingress risk when the final installation is correctly sealed and grounded.
| Cooling Method | Corrosion Resistance | Acoustic Impact | Shock Tolerance | Best For |
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| Air-Cooled (Marine-Grade Sealed) | IP68 / 500hr Salt Spray | Low (with aero-acoustic optimization) | MIL-DTL-901E Rated | Radar arrays, combat management, comms racks |
| Liquid-Cooled (Closed Loop) | None (sealed system) | None | High | High-power sonar processors, power converters |
| Conduction-Cooled | None (no airflow) | Zero | High | Submarine sealed enclosures, stealth-critical pods |
Recommended Products
Frequently AskedQuestions (FAQ)
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What environmental protection should I specify for salt fog, rain, dust, and humidity?
A: Environmental qualification can be planned against MIL-STD-810H. Program-specific conditions may include high and low temperature from -55°C to +85°C, temperature shock, humidity, salt fog per Method 509.7, fungus resistance, sand and dust ingress, rain, and immersion where applicable. IP67 and IP68 rated variants are available for applications requiring water ingress protection, with final exposure duration and acceptance criteria defined by the platform test plan. -
What shock and vibration data matters for ground vehicle and shipboard cooling?
A: The useful vibration question is not only whether a fan has passed a generic test, but whether the test matches the platform spectrum. Ground vehicles may require tracked or wheeled-vehicle profiles under MIL-STD-810H Method 514.8, while shipboard systems often require sinusoidal vibration and shock review against the naval test plan. Provide mounting orientation, RMS level, frequency range, dwell requirements, and whether the fan is mounted directly to a panel, an electronics rack, or an isolator.
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How should EMC be reviewed for fans near radar, EW, or communication receivers?
A: Fans near radar, EW, SIGINT, datalink, or communication receivers should be reviewed for both conducted and radiated emissions. CE102 is commonly used to evaluate conducted emissions on power leads from 10 kHz to 10 MHz, while RE102 evaluates radiated electric-field emissions from the unit and cables across the range defined by the platform test plan. Practical risk reduction comes from filtering, cable routing, shield termination, grounding strategy, and testing the fan in the same operating mode used by the host equipment.
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Can fans run in reverse for purge or dust-clearing cycles?
A: Some fan configurations can support reverse rotation or controlled purge operation, but it must be confirmed by model. Reverse operation changes airflow, pressure, noise, motor loading, and bearing stress. In shelter, ground vehicle, or dusty electronics applications, purge cycles may help clear loose particles, but the host controller should verify direction, startup behavior, and thermal margin. Do not assume a standard cooling fan can run continuously in reverse without a model-specific review.
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What test documentation should I request before qualification or RFQ?
A: For a serious RFQ, request the P-Q curve, outline drawing, electrical interface definition, connector or lead specification, inrush-current data, PWM/FG/RD logic, acoustic data, bearing-life basis, and environmental test references. For defense and aerospace programs, also request the applicable MIL-STD-810H method matrix, CE102/RE102 pre-screening data when EMC risk exists, and the power-quality reference such as MIL-STD-704 or MIL-STD-1275. The best supplier response ties each document to your platform test plan rather than sending a generic catalog page.