Generic Unbranded 48-122 Switching Power Supply 12VDC 2A

Product Description

The 48-122 is a plug-in switching power supply rated at 12 volts DC and 2 amps output. Switching power supplies regulate output voltage with high efficiency by rapidly switching an internal transistor, making them well-suited for powering low-voltage control equipment, sensors, and accessory devices commonly found in HVAC, security, and building automation systems. The compact plug-in form factor allows direct connection to a standard AC outlet without additional wiring hardware. HVAC technicians, electricians, and building automation professionals typically install this type of supply to power controllers, thermostats, or ancillary low-voltage devices.

This power supply is used in applications requiring a stable 12-volt DC source at up to 2 amps of continuous current. Typical installations include powering low-voltage control boards, zone controllers, access control panels, and small electronic devices in residential and light commercial settings. The plug-in design makes it practical for retrofit and replacement scenarios where a dedicated transformer or hardwired supply is not available or practical.

Key Features

• 12 volts DC regulated output at 2 amps continuous
• Plug-in design connects directly to standard AC outlet
• Switching topology provides stable output with high efficiency
• Compact form factor suited for retrofit and replacement installs
• Compatible with a wide range of low-voltage control and automation devices

Compatibility

Designed as a general-purpose replacement plug-in switching power supply for devices requiring a regulated 12-volt DC input at up to 2 amps.

Installation Notes

Installation is performed by a qualified electrician or HVAC technician. Verify that the device being powered accepts 12 volts DC and draws no more than 2 amps before connecting. Power down or de-energize the target device before connecting or disconnecting the supply. Ensure the AC outlet is properly grounded and rated for the load per applicable NEC requirements.

Technical Specifications

• Output Voltage: 12 volts DC
• Output Current: 2 amps
• Supply Type: Switching
• Form Factor: Plug-In

Standard Information

• Brand: GENERIC / UNBRANDED
• Manufacturer Part Number: 48-122