S-250-36 250W Stepper Motor Power Supply – 36VDC 7A

LASER PARTS | ELECTRICAL & POWER SUPPLIES

S-250-36 250W Stepper Motor Power Supply – 36VDC 7A

The S-250-36 is a 250W switching power supply designed to provide regulated 36VDC power for compatible laser machine stepper motor drivers and industrial motion-control systems.

Stepper motors rely on their drivers to control movement along a laser machine's axes. This power supply provides the DC power required by compatible stepper drivers, helping support consistent and repeatable machine movement.

The S-250-36 features a nominal 36VDC output rated at 7A, a vented metal enclosure, and screw-terminal connections. Its compact design allows installation inside compatible laser machine electrical cabinets.

Important: The existing Rabbit Laser USA listing identifies this as a 110VAC power supply. S-250-36 models may also feature selectable 115/230VAC input. Confirm the actual unit's input-voltage markings and configuration before installation.

Key Features

• 250W Power Supply: Designed to provide DC power for compatible electrical control systems.
• 36VDC Output: Supplies the nominal operating voltage required by compatible stepper motor drivers.
• 7A Output Rating: Provides up to 7A of rated output current.
• Switching Power Supply: Converts compatible AC input into regulated DC output.
• Electrical Protection: S-250-36 reference specifications include overcurrent and overvoltage protection.
• Output Indicator: LED indicator for checking power supply operation.
• Vented Metal Housing: Perforated enclosure allows ventilation around internal electrical components.
• Screw-Terminal Connections: Provides connection points for AC input, protective grounding, and DC output.
• Replacement Component: Intended for compatible laser machine and motion-control electrical systems.

Product Specifications

Model	S-250-36
Rabbit Laser Part Number	PS-110-36V-250W
Product Type	Switching DC Power Supply
Rated Power	250W Class
AC Input	110VAC per existing listing; verify actual input configuration
DC Output Voltage	36VDC
Rated Output Current	7A
Output Configuration	Single-Voltage DC Output
Protection	Overcurrent and Overvoltage
Indicator	LED Output Indicator
Connection Type	Screw Terminals
Enclosure	Vented Metal Housing
Application	Compatible Stepper Motor Drivers and Motion-Control Systems
Quantity Included	1 Power Supply
Rabbit Laser USA SKU	81

How the Stepper Motor Power Supply Works

A laser machine's motion-control system uses stepper motor drivers to control motor movement. These drivers receive movement commands from the machine controller and regulate electrical current to the motors.

The S-250-36 converts compatible AC electrical input into a nominal 36VDC output that can supply compatible stepper motor drivers.

Supplying the correct voltage and sufficient current capacity helps the drivers operate as intended. However, motor speed, positioning accuracy, and missed steps also depend on driver settings, motor specifications, machine mechanics, and controller configuration.

Note: This power supply does not replace the stepper motor driver. It provides DC power to the driver, which controls the connected motor.

Understanding the 36VDC 7A Rating

The S-250-36 has a nominal output voltage of 36VDC and a rated current capacity of 7A.

The 7A rating represents the maximum rated output current available from the power supply, not the current continuously drawn by every connected component.

Multiple compatible drivers may share the same supply when the total electrical load remains within the power supply's operating limits.

The power supply may have multiple positive and negative output terminals for convenient wiring. These connections share the same nominal 36VDC output rather than providing separate output voltages.

Important: A higher-current power supply is not automatically a suitable replacement. The required voltage, connected load, driver specifications, and wiring must all be considered.

Compatibility

This power supply is intended for compatible CO2 laser machines and other motion-control equipment that require a regulated 36VDC electrical supply.

Before ordering, compare the following specifications with your original power supply:

• S-250-36 model number
• 36VDC output requirement
• 7A rated output capacity
• AC input voltage and voltage-selection requirements
• Total power requirements of connected components
• Terminal arrangement and electrical connections
• Overall dimensions and mounting-hole locations
• Electrical cabinet ventilation requirements

Important: Power supplies with similar housings may have different voltage ratings and current capacities. A visually similar power supply is not necessarily an interchangeable replacement.

Do not substitute this 36VDC power supply for a 24VDC or 48VDC model unless the connected equipment and its manufacturer specifically support that change.

Installation & Safety

• Disconnect the laser machine from its electrical supply before inspecting or replacing the power supply.
• Allow internal capacitors to discharge and verify the absence of hazardous voltage before handling connections.
• Confirm the correct AC input voltage and any required input-voltage selector setting before applying power.
• Connect AC line, neutral, and protective ground according to the markings on the actual power supply.
• Observe the correct positive and negative polarity when connecting the 36VDC output.
• Ensure all terminal connections are secure and properly insulated.
• Maintain sufficient clearance around ventilation openings.
• Have a qualified technician verify output voltage and operation before reconnecting sensitive machine electronics.

Safety Note: This power supply contains hazardous electrical voltages and exposed terminals. Installation should be performed by a qualified person familiar with electrical control systems.

If the replacement power supply fails, overheats, or provides an incorrect output voltage, disconnect power and investigate the connected circuitry before continuing operation.