Product Overview

The LBBE(RT)320-PT-01 is a purpose-built EC backward curved centrifugal fan engineered exclusively for urban rail transit thermal management. As a heavy-duty industrial centrifugal blower designed for subway auxiliary inverter cooling, it features DC stepless speed regulation, IP54 dust and splash protection, and rugged all-metal construction to withstand continuous vibration and harsh onboard operating environments. This backward inclined EC fan delivers consistent high-static-pressure airflow, providing reliable, energy-efficient ventilation for metro power electronics and railway on-board equipment.

Product Advantages

1. Aerodynamic Backward Curved Centrifugal Design

This EC backward curved centrifugal fan adopts a precision-engineered backward inclined impeller profile, optimized specifically for high-resistance heat dissipation in rail transit power equipment. The all-metal backward curved blade structure delivers superior static pressure performance, maintaining consistent, uninterrupted airflow even when pushing air through tightly packed inverter cabinets and narrow duct passages. Unlike standard axial fans, this backward curved centrifugal blower generates higher pressure with far less airflow turbulence, making it perfectly suited for cooling dense power electronics inside subway auxiliary inverters. The rugged metal impeller also provides exceptional structural strength and fatigue resistance, built to endure the persistent vibration and jolting of moving rail vehicles over years of service.

2. High-Efficiency EC Motor with Intelligent Speed Control

Equipped with an advanced outer-rotor EC brushless motor, this rail transit EC fan achieves markedly higher energy efficiency and running stability than conventional AC motor fans. The EC drive system supports DC stepless speed regulation, enabling system integrators to dynamically adjust fan speed based on real-time inverter temperature and actual cooling demand. This intelligent variable-speed operation of the backward curved centrifugal fan dramatically cuts unnecessary power draw during low-load conditions, reducing overall energy costs for rail transit operators. The EC motor also integrates a soft-start function that suppresses inrush current, protecting onboard power circuits and extending the motor’s service life.

3. IP54 Protection & Rail-Grade Anti-Vibration Build

Rated IP54, this industrial centrifugal fan effectively blocks dust ingress and water splashes commonly found inside metro carriages and equipment bays. The fully sealed motor assembly safeguards internal windings and bearings from dust, moisture and particulate contamination, preventing performance drift and electrical faults in harsh onboard operating conditions. A reinforced mechanical frame and anti-vibration mounting design further allow this EC backward inclined fan to absorb continuous mechanical shock generated during train travel, eliminating fastener loosening and performance deviation. It meets the strict reliability standards required for 24/7 uninterrupted operation of urban rail transit equipment.

4. Wide Voltage Tolerance & Broad Temperature Range

The LWBE(RT)320-PT-01 backward curved centrifugal fan accepts a wide input voltage window of AC380–480V, adapting seamlessly to voltage fluctuations in rail transit power networks across different regions and routes. With Class B insulation, the motor withstands elevated operating temperatures under sustained heavy load while retaining stable insulation performance. This industrial EC blower operates reliably across an ambient temperature range of -25℃ to +60℃, coping with both frigid winter conditions and high-temperature summer environments. Its S1 continuous duty rating supports non-stop long-term running for onboard cooling systems without thermal derating.

5. Maintenance-Free Operation & Global Compliance

Fitted with high-precision sealed ball bearings, this rail transit centrifugal fan runs completely maintenance-free over its entire service life, removing the need for periodic lubrication and cutting field maintenance workload for rail operators. Standardized mounting dimensions simplify installation and replacement of the backward curved centrifugal fan inside inverter cabinets, minimizing equipment downtime during servicing. All units comply with CE, RoHS, ISO and BSCI international standards, ensuring safety, environmental compatibility and consistent build quality for rail transit projects worldwide.

Application Scenarios

• Subway Auxiliary Inverter Cooling: As a dedicated cooling solution for metro auxiliary inverters, this EC backward curved centrifugal fan delivers continuous high-pressure airflow to exhaust heat from power electronic modules, keeping inverter systems stable across all load conditions. It is the standard matching centrifugal blower for urban rail transit auxiliary power systems.
• Onboard Rail Transit Ventilation: This industrial centrifugal blower is widely deployed for ventilation and heat dissipation in urban rail transit passenger carriages, driver cabs and equipment compartments, maintaining air quality and protecting onboard electrical devices from overheating during long-distance operation.
• Railway Electrical Cabinet Cooling: The backward inclined EC fan is ideal for cooling various onboard electrical enclosures, including traction converters, control cabinets and power distribution boxes, delivering targeted airflow to critical heat-generating components and extending equipment service life.
• Ground-Side Rail Transit Equipment: This IP54 EC fan also serves ground-based rail facilities such as platform screen door systems, signal equipment rooms and station ventilation units, providing reliable cooling performance in semi-outdoor and industrial environments with dust and moisture exposure.

Frequently Asked Questions

Q: What is the minimum order quantity for this rail transit fan? A: The MOQ for the LWBE(RT)320-PT-01 backward curved centrifugal fan is 1 unit for sample testing. Volume-based discounts are available for bulk wholesale and project orders.

Q: Can this EC fan be customized for specific voltage or connector requirements? A: Yes, we offer customization on voltage range, speed curve, connector type and mounting configuration to fit different rail transit equipment specifications and OEM demands.

Q: What is the standard delivery lead time? A: Standard ready-to-ship models are delivered within 7–15 working days. Customized configurations require 15–25 working days depending on specification complexity.