LAD-360B — 360W low-profile AC/DC power supply for security and fire alarm systems with battery charger and UPS function

LAD-360B is an economical 360W low-profile AC/DC power supply with a built-in battery charger and DC-UPS function. It supports a wide 90–264 VAC input range, provides a 27.6 VDC output, delivers efficiency up to 86%, and is designed for integration into security, fire alarm, emergency evacuation, and backup power systems. The unit supports TTL status signals for AC OK, battery disconnect or reverse polarity, battery low, battery full, and discharge monitoring. The series also includes built-in AC and battery ON/OFF switches for easier maintenance.

Technical characteristics

• Rated power: 358.8W

• Output voltage: CH1 27.6V, CH2 27.6V

• Rated current: CH1 11.5A, CH2 1.5A (battery charger)

• Current range CH1: 0–13A

• Output voltage adjustment range CH1: 21.6–29V

• Ripple and noise: 150mVp-p

• Voltage tolerance: ±1.0%

• Line regulation: ±0.5%

• Load regulation: ±0.5%

• Input voltage range: 90–132VAC / 180–264VAC, switch selectable

• Also supports 240–370VDC input

• Frequency range: 47–63Hz

• Efficiency: 86%

• AC current: 8A / 115VAC, 4A / 230VAC

• Inrush current: 60A

• Leakage current: <0.5mA / 240VAC

• Hold-up time: 16ms / 230VAC, 12ms / 115VAC

• Battery cutoff: 21.5V ±0.5V

• Battery static discharge current: <100μA

• Working temperature: -20 to +60°C

• Working humidity: 20–95% RH, non-condensing

• Dimensions: 215 × 115 × 30 mm

• Weight: 0.75 kg

• Battery compatibility: lead-acid and lithium-ion batteries

• Form factor: 1U low profile, 30 mm

• Warranty: 3 years