24V 12-Inch Brushless Axial Fan | Replace SPAL 369

Specification of WBLF-1251-BS2350-B replace SPAL369

1,The motor black wire connect the positive,Brown wire connect the negative . clockwise rotation
2,Axial clearance: 0.25mm Max;
3,Pressure test,:660VAC 1S 5mA;
4,Protection:IP68
5,Insulation class:H
6,Insulation resistance:20MΩMIN(500VDC)
7,Operaing temperture:-40-85℃
8,Humidity:0-100°
9,Operaing life:25000 hours Min
10,Vibration :20ms 5G
11,Rated voltage:24VDC Voltage Range:16-32VDC
12,30A Insurance in controller
13,Lead length:500±20mm,A blace∅8 PVCtube length 450
14,Power line model:UL1015 12AWG
15,Weight Approx:3Kg

Features  of WBLF-1251-BS2350-B replace SPAL369

It is 24V & suction aiflow & 3300rpm & 3200m3/h & IP68 & PWM control

Max Fan Speed	3300rpm
Min Fan Speed	2000rpm
Weight	2.2KG
Operating supply voltage rang	16V -32V
Operating working temperature range	-40°C - 85°C
Storage temperature range	-40°C - 120°C
Life time	up to 40000 hours depending on missing profile
Time from 0 rpm to max speed	8 seconds
IP grade	IP68

The drawing of dimension (mm)  of WBLF-1251-BS2350-B replace SPAL369

Airflow  of WBLF-1251-BS2350-B replace SPAL369

The orange line is Current  &  The blue line is Airflow

PWM control diagram of WBLF-1251-BS2350-B replace SPAL369

Product Picture  of WBLF-1251-BS2350-B replace SPAL369

Application

This fan is widely used across heavy-duty vehicles and thermal systems, including:

• Trucks & buses (condenser / radiator cooling)

• Construction machinery (loaders, excavators, concrete mixers)

• Specialized vehicles (fire trucks, ambulances, snow plows)

• Refrigerated trucks / cold chain transport

• New energy systems (battery packs, inverters, chargers)

Usage Tips & Best Practices

• PWM Control: Use a PWM controller to adjust speed per cooling demand — giving better efficiency under varying loads.

• Soft Start: If your system supports soft-start, it can reduce mechanical stress on the fan.

• Temperature Monitoring: Use sensors upstream or downstream to control fan speed dynamically (e.g. via ECU or controller).

• Protect from Reverse Polarity: Ensure wiring includes reverse-polarity protection or diode in system.

• Avoid Long Idle: Prolonged idling in dusty / humid environments can deposit debris; periodic operation helps keep blades and internal parts clean.

• Operating in Harsh Environments: Despite IP68 rating, avoid exposure to strong corrosives, solvents, or direct high-pressure water jets.

• System Integration: When integrating into a thermal management system, ensure that fan’s pressure / airflow curves match system delta-P requirements.

About Sunlight

Since 1990, Sunlight has specialized in manufacturing high-performance brushless fans and blowers. Certified with ISO9001 and IATF16949, our products meet CE, RoHS, and EMC standards. Widely applied in automotive, machinery, refrigeration and energy industries. Sunlight is committed to delivering quality, innovation, and reliable cooling solutions.

All fans undergo 100% testing before shipment, with customization and technical support available.

Certifications

EMC Certificate

CE certificate

The Experimental Project 

Ordeing Information

Sample Lead Time: 14days

Mass Production: 21days

MOQ: 2

Customization: Voltage, control mode, wiring, housing treatment available

Contact Us:

Sunny Li: +86-18806140118 / sunny@sunlightmotor.com

Alisa Chen: +86-18806140198 / sales3@czsunlight.com

Frances Zhang: +86-18806140168/ sales1@czsunlight.com

Vicky Li: +86-18806140098/ sunlight@sunlightmotor.com 

FAQ:

• Q: Can this fan be reversed (reverse rotation)?
  A: No — this model is designed for clockwise rotation (viewed from motor side).

• Q: Is it safe to run at lower voltages (e.g. 12V)?
  A: Not recommended — performance will be severely compromised. Rated for 24V with tolerance 16–32V.

• Q: What is the guaranteed lifetime?
  A: Minimum 25,000 hours under nominal conditions; can reach ~40,000 hours in ideal environments.

• Q: Can I use this fan in humid / water-spray conditions?
  A: Yes — the fan has an IP68 protection rating, but direct high-pressure jets or corrosive liquids should be avoided.

• Q: How do I control its speed?
  A: Use PWM control or an external fan controller compatible with its wiring and voltage range.

• Q: How to ensure I choose the correct replacement for SPAL 369?
  A: Confirm physical dimensions, mounting hole layout, voltage & airflow specs, and electrical compatibility before ordering.