Reference only — this item is no longer available. This product has been discontinued and cannot be ordered. We keep the page online so the specifications and documentation stay available to anyone still running the equipment. Current replacements are listed further down.

Discontinued

Variable Speed Fan Control Switch (DJ-SC40) 110-120vAC Rheostat

Reference only — not for sale

Model	DJ-SC40
Manufacturer	National Safety
Category	Electrical Components
Status	Discontinued

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Product details (archived)

The information below is retained for reference only. This item is discontinued and cannot be ordered.

Vari-Speed Solid State AC Motor Speed Fan Control Switch (DJ-SC40) 110 to 120 volts AC

The DJ-SC40 (2200W) regulator allows for smooth regulation of both inductive and resistive voltage from 0 to 100%, applicable for fans, lights, drills, and other devices with a power consumption of up to 2200W (9.5A). The increase and decrease of the output voltage are easily controlled via the main rotary knob. The device is housed in a sturdy plastic case, ensuring reliable and long-lasting operation even in extreme conditions.

Description

The DJ-SC40 AC motor speed controller rheostat is designed to provide adjustable power and speed control for compatible AC devices. It supports resistive loads up to 4000 W and inductive loads up to 1500 W when operated on a 110–120 V AC power supply. The unit is rated for 9 A continuous current and includes built-in 15 A overload protection that automatically disconnects power in the event of excessive current.

The controller is housed in a flame-retardant ABS enclosure and features an integrated US Type A/B outlet for direct device connection. A LED voltage display and adjustable control knob allow for real-time monitoring and precise output adjustment. A belt clip is included for portable use in workshops, testing environments, and job sites.

Features

Supports resistive loads up to 4000 W.
Supports inductive loads up to 1500 W.
Rated for 9 A continuous current.
15 A overload protection with automatic power shutoff.
LED voltage display for real-time monitoring.
Adjustable control knob for precise output regulation.
Flame-retardant ABS housing.
Integrated US Type A/B outlet.
Belt clip for portable operation.

Specifications

Material: Flame-retardant ABS.
Input Voltage: 110–120 V AC.
Rated Current: 9 A.
Maximum Current: 15 A.
Load Capacity: 4000 W resistive / 1500 W inductive.
Plug Standard: US Type A/B.
Dimensions: 12 × 6.5 × 5.5 cm (4.72 × 2.55 × 2.16 inches).
Color: Black.

Compatibility Notice

Not compatible with devices containing built-in circuit boards.
Not suitable for use with induction cookers, energy-saving lamps (CFL or LED), or brushless motors.