Speed controller for single-phase motors BLOW — up to 2000 W, up to 230 V AC

The BLOW speed controller for single-phase motors is designed to control the speed of motors with a maximum power of 2000 W and a supply voltage up to 230 V AC. This compact controller provides adjustable output to regulate motor speed smoothly and reliably. It is intended for installation in control panels or directly on machinery and is suitable for a range of applications including fans, pumps, conveyors and various workshop equipment. The device allows fine control of motor revolutions while keeping installation and operation straightforward.

Advantages

The controller offers precise analog speed adjustment that supports single-phase motors up to 2000 W without complex external circuitry. Its compact form factor simplifies mounting in control enclosures or machine housings and reduces space requirements. The unit delivers stable performance under typical supply conditions up to 230 V AC and includes features that help achieve smooth acceleration and deceleration of connected loads. Durable design and compatibility with common motor types make it suitable for continuous operation in industrial and domestic environments.

Suitable for

• Axial and centrifugal fans where variable airflow is required
• Small pumps for circulating or transfer applications
• Light conveyors and material handling equipment
• Workshop machinery such as grinders and buffing tools with single-phase motors
• Laboratory and prototype setups requiring adjustable motor speed

Key specifications

• Maximum motor power: up to 2000 W
• Supply voltage: up to 230 V AC
• Motor type supported: single-phase AC motors
• Speed control: continuous adjustable output for smooth regulation
• Mounting: compact unit suitable for installation in control panels or on machinery

How to use

Mount the controller in a dry, ventilated location inside a control panel or on machinery following applicable electrical safety rules. Connect the supply lines and motor leads according to the manufacturer’s wiring instructions and ensure correct grounding. After powering up, adjust the speed control knob or dial to set the desired motor speed; changes should be made gradually to avoid abrupt torque or current spikes. Verify that the connected motor does not exceed 2000 W and that wiring and protection devices are rated for the operating current.

Usage recommendations

For reliable long-term operation, use protective devices such as appropriately rated fuses or circuit breakers and ensure adequate ventilation around the controller. Avoid frequent rapid switching between extreme speeds and confirm that the controlled motor is compatible with phase-angle speed control methods. Regularly inspect wiring connections and mounting hardware for signs of overheating or wear.