The factory motor listed here carries 24 V AC, model number BLSD4815B, documented exactly as the manufacturer publishes it. Made by Changzhou Songjie Electrical Machinery Co., Ltd. (6 years on the platform, factory-assessed). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of This Factory Motor
- Model Number: BLSD4815B
- Output Power: 800 W
- Control Circuit Power Supply: yes
- Rated Voltage: 24 V AC
- Voltage: 24v 48V
- Warranty: 3 months ~ 1 year
Technical Specifications
| Rated Voltage | 24 V AC |
|---|---|
| Output Power | 800 W |
| Protection Class (IP) | IP30 |
| Maximum Current | 5A |
| Warranty | 3 months ~ 1 year |
| Controller Model | Model B |
| Model Number | BLSD4815B |
| Brand Name | SOJMOTOR |
| Place Of Origin | Jiangsu, China |
| Name | BLDC Driver |
| Voltage | 24v 48V |
| Control Circuit Power Supply | yes |
| Brake Handing Function | Brake resistor external |
| Certification | CE |
| Control Mode | Location/Speed/Torque Mode |
| Function | Support brake control output |
| Compatible | 485 communication function |
| Selling Units | Single item |
| Single Package Size | 51X34X16 cm |
| Single Gross Weight | 12.0 kg |
Product Details




BLSD4815B Brushless dc motor driver
| Name | BLDC Driver |
| Certification | CE |
| Warranty | 3months-1year |
Brief introduction
BLSD4815B is mainly for BLDC motors of 48V less 440w or 24v less 300w.
Electrical parameters
| Driver parameter | Min Value | Typical Value | Max Value | Unit |
| Voltage input DC | 12 | 48 | 56 | V |
| Current output | – | – | 15 | A |
| Motor speed range | 0 | – | 20000 | RPM |
| Hall signal voltage | – | – | 5 | V |
| Hall drive current | 12 | – | – | mA |
| External potentiometer | – | 10 | – | KΩ |
Environmental indicators
| Environmental factors | Environmental indicators |
| Heat sinking method | Natural or forced cooling |
| Atmosphere | Avoid dust, oil mist and corrosive air |
| Operating temperature | 10℃-+50℃ |
| Ambient humidity | 90% or less(non condensing) |
| Vibration Resistance | 5.7m/S² max |
| Storage temperature | 0℃-+50℃ |
Dimensions(Unit:mm)


Driver interface and writing diagram
Driver interface


Port signal description
| Signal category | Terminal | Function Description |
| Power connection | DC+/DC- | Dc voltage input terminal (12-56VDC) |
| Motor connection | U | Motor line U phase |
| V | Motor line V phase | |
| W | Motor line W phase | |
| Hall signal | REF- | Hall sensor signal- |
| Hu | Hall sensor signal Hu | |
| Hv | Hall sensor signal Hv | |
| Hw | Hall sensor signal Hw | |
| REF+ | Hall sensor signal+ | |
| Control signal | SV | External potentiometer speed setting input; External analog voltage input terminal ;PWM speed setting input |
| COM | Common port(0V) | |
| F/R | Motor direction control terminal;F/R and COM disconnection,motor will rotates Clockwise,and otherwise,motor will rotate anticlockwise. | |
| EN | Stop signal terminal; EN connects COM ,motor runs,otherwise motor stops. | |
| BRK | Motor brake stop control signal;BRK and COM connect in default,motor brake stops when BRK and COM disconnect. | |
| Output signal | SPEED | Speed signal output terminal |
| ALARM | Motor or driver fault signal output. It is 5V in normal situation and 0V when fault occurs. |
Output signal connection diagram




Products Drawing












Ordering and Pricing
- Minimum order quantity: 2 piece
- Volume pricing:
- 2–199 piece: US $30 / piece
- 200–1999 piece: US $28 / piece
- 2000+ piece: US $23 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this factory motor?
The standard minimum order quantity is 2 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 3 months ~ 1 year warranty. Spare parts and technical support remain available after the warranty period.
Which certifications does this factory motor carry?
It is supplied with CE documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.
Can the factory motor be supplied for my local voltage?
The standard configuration is 24 V AC. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Changzhou Songjie Electrical Machinery Co., Ltd., based in China. The company 6 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Changzhou Songjie Electrical Machinery Co., Ltd. range on HVACR Nexus.
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