Technical Information & Specifications for MEAN WELL LAD-120C Power Supply
- Output Power: 121.4 W (Primary CH1: 107.9 W + Charger CH2: 13.5 W)
- Output Voltage: CH1: 41.5 V DC (adjustable 32.4 – 43.5 V), CH2: 41.5 V DC
- Output Current: CH1: 0 – 2.6 A, CH2: 0.33 A (Battery Charging)
- Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC, 47 – 63 Hz
- Efficiency: 88%
- Ripple & Noise: ≤ 240 mVp-p
- Inrush Current: max. 30 A @ 115 VAC / 55 A @ 230 VAC
- Standby Consumption: < 100 µA (Battery static discharge current)
- Operating Temperature: −20 °C to +60 °C
- Cooling: Fanless free air convection
- Protections: Short circuit, Overload, Over voltage, Over temperature, Battery low voltage, Battery reverse polarity
- Overvoltage Category: OVC II
- Isolation Voltage: 3000 V AC between input and output
- Dimensions (L x W x H): 159 mm x 97 mm x 30 mm
- Weight: approx. 420 g
- Safety & EMC Standards: UL 62368-1, BS EN/EN 62368-1, AS/NZS 62368.1, EAC TP TC 004, GB 17945-2010
- Status Indicators & Signals: TTL signals (AC OK, Battery disconnect/reverse polarity, Battery low, Battery full, Discharge)
- Warranty: 3 Years
Information about MEAN WELL LAD-120C
Delivering a specialized 41.5 V DC supply voltage, the MEAN WELL LAD-120C combines an industrial switch-mode power unit with a dedicated battery charger and backup UPS unit in a compact 30 mm low-profile housing. Hardware damage from accidental battery miswiring is completely eliminated through non-destructive reverse polarity protection, while manual circuit breakers enable quick isolation during routine servicing. Built-in TTL status monitoring outputs continuously output logic-level diagnostics covering mains health, battery capacity limits, and battery discharge events. Engineered with a high 3 kVAC isolation voltage and convection cooling, it provides stable backup power for public safety infrastructure, fire alarms, and central monitoring systems.