Delta FFB0624SHE Axial Cooling Fan

This is a 6038 (60×60×38 mm) 24 VDC industrial axial fan without heating elements. It is used for heat dissipation of inverters, servo drives, industrial control cabinets and servers, equipped with rotor lock alarm (tachometer speed feedback signal). The common suffix is -R00.

Key Specifications

Model: FFB0624SHE-R00

Brand: Delta Electronics (DELTA)

Dimension: 60×60×38 mm (6038 size)

Rated Voltage: 24 VDC (operating range: 14~27.6 VDC)

Rated Current: 0.40 A

Power: 9.6 W

Bearing: Dual ball bearings

Wiring: 3-wire (Red: +24 VDC; Black: GND; Yellow: tachometer / rotor lock alarm signal)

Typical Speed: 7000 RPM

Applications: Inverters, servo drives, UPS, industrial control cabinets, laser equipment, telecom power supply cooling

Material: Frame and impeller with UL94V-0 flame retardant plastic

Operating Temperature: -10 ~ +70 ℃

Part Number Decoding (FFB Series Nomenclature)

FFB: Series code, dual-ball high-speed industrial axial fan

06: 60 mm frame size

24: 24 VDC rated voltage

SHE: High-speed grade with tachometer output

-R00: Open-collector alarm output (rotor lock detection)

Replacement & Selection Guidelines

1. Select the same 6038 size, 24 VDC fan with tachometer speed feedback (FG signal) (e.g., FFB0624EHE). If no fault alarm is required, a 2-wire standard 6038 24 VDC fan can be used, but inverters will trigger fan fault alarms.
2. Mounting hole spacing: Standard 50×50 mm for 60 mm fans.
3. Airflow direction: Must match the intake/exhaust direction of the original fan.

Common Troubleshooting

Fan does not spin: Check 24 VDC power supply, wiring harness and rotor jamming.

Fan runs but the drive reports a fan fault: Broken yellow tachometer wire or damaged Hall sensor inside the fan.

Abnormal noise: Worn ball bearings; direct replacement is required (ball bearing fans cannot be repaired after service life decay).

Mandatory requirements for direct interchange (failure to meet will trigger inverter fault alarms):

60×60×38 mm, 24 VDC, approx. 0.4 A, 3-wire (Red +24V / Black GND / Yellow FG tachometer), dual ball bearings, open-collector rotor lock tach signal.

1. Preferred Domestic Drop-in Replacements (Industrial Grade, Direct Pin-to-Pin Swap)

1) Dongxingyue (DXM, widely used for inverters)

Model: DF6038B24M-FG (3-wire with RD tach feedback)

Spec: 24 VDC, 0.4~0.55 A, dual ball bearing, 7000~9000 RPM, FG tach output

Fully compatible with FFB0624SHE-R00; no wiring modification needed.

2) KAKU (KAKU, highest stability for industrial fans)

Model: KA6038B24H-FG

Spec: 24 VDC, 0.42 A, 6038 size, 3-wire speed detection, IP55 rating

Ideal for 24/7 continuous operation; first choice for inverters and servo drives.

3) SNOWFAN (Cost-effective option)

Model: YY6038L24B-FG (3-wire tach version)

Spec: 24 VDC, 0.38~0.42 A, dual ball bearing with FG signal

Important: Only purchase the 3-wire FG tach model; avoid 2-wire non-feedback versions.

4) Yimeng (YM, commonly used for industrial power supplies)

Model: YM2406PTB3 (6038, 3-wire with feedback)

0.4 A current, 7000 RPM; pinout fully consistent with Delta fans.

1. General Alternative Models (Must specify: 3-wire + FG tach feedback when ordering)
2. Shengshida: 6038-24V-0.4A-FG
3. Weiyixin: RPM | 2-wire / 3-wire | Low speed / Low noise

III. Factory Upgrade Replacement (PFB0624 Series, In-Stock Direct Swap)

The FFB series is end-of-life; the corresponding Delta upgraded models are listed below:

1. FFB0624SHE-R00 → PFB0624SHE-R00 (3-wire with tach; pinout 100% compatible)
2. FFB0624EHE-R00 → PFB0624EHE-R00
3. Critical Purchase Notes
4. Inverter applications must select the -R00 (3-wire FG tach feedback) version; 2-wire -F00 versions will cause fan fault alarms.
5. Fixed pin assignment: Red = +24 VDC, Black = GND, Yellow = FG tach signal.
6. If only FFB stock is available, prioritize FFB0624SHE-R00; if out of stock, switch directly to PFB0624SHE-R00.

Delta PFB0624 Series (6038 24 VDC) – Applications

Core features: Dual ball bearings, industrial grade, high static pressure, optional -R00 3-wire FG tach feedback. It is the direct upgraded replacement for the obsolete FFB0624 series, designed for forced air cooling inside sealed equipment. Models with tach feedback (-R00) are required for systems with fan fault monitoring.

1. Industrial Drives (Primary Application; Original Fit for FFB0624SHE)
2. Variable Frequency Drives (VFDs) / High-power inverters (internal cooling for Siemens, Inovance, Infineon and Delta VFD high-power units; -R00 mandatory for rotor lock alarm)
3. Servo drives & servo power units (power module cooling for CNC and robot controllers)
4. High-power DC speed controllers and motor drive units
5. New Energy Power Equipment
6. PV inverters, PCS energy storage converters
7. BMS power cabinets and battery cluster control cabinets for commercial energy storage
8. On-board charger (OBC) modules for DC charging piles and electric vehicles
9. Off-grid inverters and high-power DC-DC power modules
10. Industrial Power Supplies & UPS
11. Industrial uninterruptible power supplies (UPS): cooling for power units and inverter boards
12. High-power 24 V / 48 V industrial switching power supplies and embedded telecom power supplies
13. High-voltage DC power supplies, laser power supplies and plasma power supplies
14. Automation & CNC Equipment
15. Electric control cabinets for CNC machine tools, operation boxes and spindle drives
16. Robot control cabinets and manipulator power units
17. High-power PLC cabinets, industrial IPC and machine vision enclosures
18. Electrical cabinets for textile, packaging, injection molding and printing machinery
19. Laser & Precision Equipment
20. Laser power supplies for fiber laser cutters and marking machines
21. Welding equipment and plasma cutting main units
22. High-power heat source cooling for 3D printing systems
23. Telecom & Server Hardware
24. Industrial switches and embedded power units for 5G base stations
25. Industrial servers, storage and compact high-density chassis (high static pressure suits sealed enclosures with high airflow resistance)
26. Other Special Industrial Scenarios

On-board electrical control cabinets for railway rolling stock (24 VDC vehicle electrical systems)

High-power medical equipment power supplies (CT, ultrasound power modules)

Thermal testing instruments and aging chamber power module cooling

Application-Based Model Selection

1. Inverters / Servo Drives / Energy Storage Converters → PFB0624XX-R00 (3-wire FG tach feedback) for system rotor lock fault detection
2. General power supplies & simple chassis cooling (no fault monitoring required) → PFB0624XX-F00 (2-wire version)

Environmental Compatibility

Dual ball bearing construction; operating temperature -10 ℃ ~ +70 ℃, resistant to vibration, suitable for 24/7 continuous operation inside factory cabinets.

Limitation: High-speed variants generate relatively high noise; not recommended for quiet indoor environments without noise reduction housing.