LAD-120B — 120W Security/Fire Alarm PSU with UPS Function (27.6V)

The LAD-120B is a 120W low-profile AC/DC security power supply with built-in battery charger and UPS function for 24V systems.

It provides a regulated 27.6V DC output from a 90–264VAC input.

Key Specifications

• Output voltage: 27.6V DC

• Rated current: 3.8A

• Output power: 120W

• Voltage adjustment range: 21.6–29V

• Battery charging current: 0.5A

• Efficiency: up to 88%

UPS & Battery Features

• Built-in 24V battery charger

• Supports lead-acid and lithium-ion batteries

• Automatic transfer to battery backup

• Forced UPS start function

• AC and battery ON/OFF switches

Protection Features

• Short Circuit Protection

• Overload Protection

• Overvoltage Protection

• Over Temperature Protection

• Battery low protection

• Battery reverse polarity protection

IP20. 3-year warranty.