3115RL-05W-B69 NMB fan 24V 0.50A

Description

The NMB 3115RL-05W-B69 is an industrial-grade, high-static pressure DC axial cooling fan designed for demanding thermal management within power conversion equipment, automation enclosures, and variable frequency drives (VFDs). Manufactured to exact Original Engineering standards, this high-output 80 mm x 80 mm x 38 mm unit provides dedicated cooling across heatsink assemblies and power semiconductor modules (IGBTs). It serves as a direct-fit replacement for Schneider Electric frequency converters and industrial motor control units, ensuring uninterrupted duty cycles and preventing catastrophic thermal trips.

Technical Specifications:
Manufacturer: NMB Technologies / MinebeaMitsumi
Model Series: 3115RL-05W-B69
Frame Dimensions: 80 mm x 80 mm x 38 mm
Rated Nominal Voltage: 24 V DC
Operating Voltage Range: 18.0 V DC to 27.6 V DC
Rated Operating Current: 0.50 A
Rated Power Consumption: 12.0 W
Nominal Speed: 6,000 RPM (±10%)
Maximum Airflow: 85.0 CFM (2.41 m³/min)
Maximum Static Pressure: 185 Pa (0.74 in H₂O)
Acoustic Noise Level: 52.0 dB(A)
Bearing System: Dual Precision Ball Bearings
Housing Material: Reinforced PBT Thermoplastic (UL 94V-0 Flame Retardant)
Impeller Material: Reinforced PBT Thermoplastic (UL 94V-0 Flame Retardant)
Motor Protection: Locked Rotor Auto-Restart and Polarity Protection
Wiring Configuration: Multi-Conductor Lead Wire with Integrated Connector
Operating Temperature Range: -10 °C to +70 °C
Storage Temperature Range: -40 °C to +75 °C
Expected Service Life (L10): 70,000 Hours at 40 °C Continuous Duty
Weight: 210 g
Compliance & Certifications: RoHS Compliant, UL Recognized, CSA Certified, CE

Application Architecture & Critical Problem Solving:
In high-power industrial inverter assemblies, continuous switching loads generate localized junction heating that must be rapidly dissipated. Generic fans often fail to overcome the high backpressure created by dense heatsink fins, resulting in reduced airflow, thermal derating, and Overheat Fault (OHF) trip states. The NMB 3115RL-05W-B69 is aerodynamically tuned with deep 38 mm rotor blades to produce maximum static head pressure, forcing cooling air through restricted internal ducts to maintain power module temperatures well below critical limits.

Technical Compatibility & Integration:
Technical Compatibility: Schneider Electric Altivar series frequency converters, industrial servo drives, robotic control units, and industrial switchgear requiring 24V DC 8038 frame cooling components.
Installation Interface: Direct-fit 4-hole flange mount with pre-terminated wiring harness for seamless mechanical and electrical drop-in replacement.
Original Engineering: Built with tight manufacturing tolerances to eliminate electrical noise interference (EMI) and resist high vibration environments.

Commercial & Procurement Data:
Component Condition: Brand New, Unused
Lead Time: Immediate Dispatch / In-Stock Availability
Quality Verification: Factory Specification Compliant