Description
The NMB-MAT 3615KL-04W-B76 is a specialized, high-static-pressure 92 mm x 38 mm DC axial cooling fan engineered for forced-air heat exchange in thermal-dense industrial enclosures and telecommunications infrastructure. Designed to meet Original Engineering standards, this unit provides exceptional operational stability under continuous full-load conditions, preventing localized hot-spots and system thermal throttling.
TECHNICAL SPECIFICATIONS:
Manufacturer: NMB Technologies / MinebeaMitsumi
Model Code: 3615KL-04W-B76
Form Factor: 92 mm x 92 mm x 38 mm (Ø 92 mm mounting pattern)
Operating Voltage: 12.0 V DC
Operating Voltage Range: 10.2 V DC to 13.8 V DC
Rated Current: 1.60 A
Power Consumption: 19.2 W
Nominal Speed: 5600 RPM ± 10%
Airflow Rate: 3.40 m³/min (120.0 CFM)
Static Pressure: 235 Pa (0.94 in H₂O)
Acoustic Noise Level: 59.0 dBA
Bearing Architecture: Dual Precision Steel Ball Bearings
Frame Construction: Glass-Reinforced Polybutylene Terephthalate (PBT UL94V-0)
Impeller Construction: Glass-Reinforced Polybutylene Terephthalate (PBT UL94V-0)
Termination: Multi-conductor lead wire assembly
Motor Protection: Reverse polarity protection, locked-rotor shutdown with auto-restart
Insulation Resistance: 10 MΩ or higher at 500 V DC
Dielectric Strength: 700 V AC for 1 minute
Weight: 270 g
Operating Temperature Range: -10 °C to +70 °C
Storage Temperature Range: -40 °C to +70 °C
L10 Bearing Life Expectancy: 70,000 Hours at 40 °C
Safety Approvals: UL Listed, CSA Certified, VDE, CE, RoHS Compliant
ENGINEERING PROFILE & APPLICATION:
The 3615KL-04W-B76 solves severe cooling constraints in high-impedance industrial environments. Standard 25 mm thick fans often stall or suffer catastrophic pressure drop when operating across densely packed electronics. With a 38 mm frame depth and steep-pitch aerodynamically optimized rotor blades, this model generates 235 Pa of static head pressure, driving constant laminar airflow directly through tightly spaced fin arrays, high-power server chassis, telecommunications switchgear, industrial rectifiers, and high-frequency inverter heat sinks.
TECHNICAL COMPATIBILITY & SYSTEM REPLACEMENT:
Technical Compatibility covers all standard industrial rackmount chassis, Dell, HP, and Cisco server enclosures, and automation cabinet cooling ducts requiring a high-draw 9238 format fan. The dual ball-bearing assembly ensures orientation-independent installation across vertical, horizontal, or inverted chassis mounts without lubrication migration or accelerated wear.
COMMERCIAL AVAILABILITY & LEAD TIME:
Quality Assurance: Every fan undergoes electrical load characterization, current draw verification, and locked-rotor recovery validation.
Lead Time: Stocked units dispatch within 24 to 48 hours. Staged wholesale deliveries and scheduled buffer inventory agreements available for recurring integration requirements.
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