D-120B 120W Logic System Power Supply – 5V/24V Dual Output

LASER PARTS | POWER SUPPLIES & ELECTRICAL

D-120B 120W Dual-Output Logic System Power Supply – 110/220VAC

The D-120B is a dual-output switching power supply designed to provide 5VDC and 24VDC power for compatible CO2 laser machines and industrial control systems.

This power supply converts incoming AC electricity into regulated DC voltage for compatible electronic components. Its dual-output design allows equipment requiring both 5V and 24V power to receive those voltages from a single power supply.

The unit features a vented metal enclosure, screw-terminal connections, an LED output indicator, and overcurrent and overvoltage protection.

Important: Confirm the input voltage, output current ratings, terminal arrangement, and physical dimensions of your original power supply before ordering.

Key Features

• Dual DC Outputs: Provides separate 5VDC and 24VDC connections for compatible electronic components.
• 110/220VAC Input: Designed for equipment using the appropriate supported AC input configuration.
• Switching Power Supply: Converts incoming AC power into regulated DC outputs.
• Overcurrent Protection: Helps protect the power supply when current exceeds its operating limits.
• Overvoltage Protection: Helps protect connected circuits from excessive output voltage.
• LED Output Indicator: Provides a visual indication of power supply operation.
• Vented Metal Housing: Allows airflow around internal electrical components.
• Screw-Terminal Connections: Provides connection points for AC input, grounding, and DC outputs.
• Replacement Component: Intended for compatible laser machine logic and electrical control systems.

Product Specifications

Product Type	Dual-Output Switching Power Supply
Model	D-120B
Listed Power Rating	120W
AC Input Voltage	110/220VAC
DC Output 1	+5VDC
DC Output 2	+24VDC
Output Current Ratings	Verify against actual unit label
Electrical Protection	Overcurrent and Overvoltage
Status Indicator	LED Output Indicator
Connection Type	Screw Terminals
Housing	Vented Metal Enclosure
Listed Dimensions	8" L × 4.375" W × 2" H
Application	Compatible Laser Machine Logic and Control Systems
Quantity Included	1 Power Supply
Rabbit Laser USA SKU	116

Understanding the Dual Outputs

Some laser machine electrical systems require more than one DC voltage to operate their electronic components.

The D-120B provides two separate voltage outputs:

• 5VDC Output: Intended for compatible low-voltage logic circuits and electronic controls.
• 24VDC Output: Intended for compatible electrical control components and other devices requiring 24VDC power.

Each output must be connected to equipment designed for its voltage. The total electrical load must remain within the power supply's confirmed ratings.

Important: The original catalog lists 5V at 8A and 24V at 4A. These figures require confirmation against the actual unit label because their combined maximum loads exceed the listed 120W rating. Do not assume both outputs can operate at those maximum currents simultaneously.

Compatibility

This power supply is intended for compatible CO2 laser machines and other electrical control systems requiring matching 5VDC and 24VDC outputs.

Before ordering, compare the replacement power supply with your existing unit:

• Manufacturer and model number
• AC input voltage and input configuration
• 5VDC and 24VDC output ratings
• Total power capacity
• Electrical terminal arrangement and polarity
• Overall dimensions and mounting points
• Ventilation and installation clearance

Important: Power supplies with similar housings may have different voltage outputs, current capacities, and terminal arrangements. A matching appearance does not guarantee electrical compatibility.

This unit should only replace a power supply whose electrical ratings and connection requirements have been verified.

Installation & Safety

• Disconnect the laser machine from its electrical supply before inspecting or replacing the power supply.
• Allow internal capacitors to discharge according to the equipment manufacturer's instructions.
• Verify that the AC input voltage matches the power supply's configuration before applying power.
• Connect the AC input, protective ground, and DC outputs according to the markings on the actual unit.
• Confirm correct DC output polarity before connecting electronic components.
• Keep the ventilation openings clear to prevent excessive heat buildup.
• Do not exceed the manufacturer's confirmed output current or combined power ratings.
• Have installation and electrical testing performed by a qualified technician.

Safety Note: Switching power supplies contain hazardous electrical voltages. Never open the housing or work on exposed electrical connections while the unit is energized. Incorrect wiring may cause electrical shock, fire, or damage to the laser machine's electronic components.