Mg Electronics st123a Power Supply 12V Dc 3000ma Plug-in

Product Description

The MG ELECTRONICS st123a is a plug-in regulated DC power supply designed to deliver a steady 12 volts DC at 3000 milliamps (3 amps) for low-voltage professional installations. It accepts a wide input range of 100 to 240 volts AC at 50 or 60 Hz, making it compatible with standard North American and international electrical systems. Screw terminal output connections provide a secure, tool-friendly wiring interface. Built-in short-circuit and overcurrent protection guards connected equipment during fault conditions. UL, cUL, and FCC certifications confirm the unit meets established safety and performance standards. Licensed electricians and security system technicians are the primary installers for this type of supply.

The st123a is suited for powering security cameras, access control panels, door strikes, intercoms, and similar low-voltage devices that require a stable 12V DC source. Its wide-range AC input makes it a practical choice for both domestic and international deployment. The screw terminal output simplifies field wiring in retrofit and new-construction security and access control installations where reliable, regulated power is a baseline requirement.

Key Features

• 12V DC regulated output at 3000mA (3 amps) for consistent low-voltage device power
• Wide-range AC input: 100 to 240 volts AC, 50 or 60 Hz
• Screw terminal output connections for secure, tool-accessible field wiring
• Built-in short-circuit and overcurrent protection
• UL, cUL, and FCC certified
• Plug-in form factor for straightforward installation

Compatibility

Designed as an OEM-style plug-in power supply for security cameras, access control systems, and other low-voltage DC devices requiring a regulated 12V DC source at up to 3000mA.

Installation Notes

Installation should be performed by a licensed electrician or qualified low-voltage technician in accordance with NEC Article 725 for Class 2 and Class 3 circuits. Disconnect or de-energize all connected devices before terminating wiring at the screw terminals. Verify that the total current draw of connected loads does not exceed the 3000mA output rating before powering the supply. Do not expose the unit to moisture or install in locations that exceed the environmental ratings of the enclosure.

Technical Specifications

• Output Voltage: 12 volts DC
• Output Current: 3000mA (3 amps)
• Input Voltage Range: 100 to 240 volts AC
• Input Frequency: 50 or 60 Hz
• Connection Type: Screw terminal output
• Certifications: UL, cUL, FCC

Standard Information

• Brand: MG ELECTRONICS
• Manufacturer Part Number: st123a