Technical Information & Details for MEAN WELL AD-155B Power Supply
- Output Power: 156.5 W (CH1: 27.6 V / 5 A, CH2: 27.1 V / 0.5 A)
- Output Voltage: CH1: 27.6 V DC (24–29 V adjustable), CH2: 27.1 V DC
- Output Current: CH1: 0–5.5 A, CH2: 0–0.5 A
- Input Voltage Range: 88 – 264 V AC / 124 – 370 V DC, 47 – 63 Hz
- Efficiency: 84%
- Ripple & Noise: 150 mVp-p
- Inrush Current: Cold Start 23 A @ 115 VAC / 45 A @ 230 VAC
- Power Factor (PFC): PF > 0.92 at full load
- Operating Temperature: −10 °C to +60 °C
- Cooling: Free air convection (expandable via 21.6 CFM forced air)
- Protections: Short circuit, Overload, Over voltage, Battery low shutdown, Battery polarity protection
- Isolation Voltage: 3000 V AC between Input and Output (I/P-O/P)
- Dimensions (L x W x H): 199 mm x 110 mm x 50 mm
- Weight: approx. 880 g
- Safety & EMC Certifications: UL62368-1, TUV BS EN/EN62368-1, AS/NZS 62368.1, EAC TP TC 004, BS EN/EN55032 Class B
- LED Indicator: Power On Indicator
- Warranty: 2 Years
Information about MEAN WELL AD-155B
Unlike conventional single-output power modules that require external charging controllers, the MEAN WELL AD-155B provides a complete DC backup ecosystem in a single chassis. Operating as a hybrid combination power supply and integrated battery charger, it supplies primary power at 27.6 V DC while simultaneously maintaining secondary battery backup lines. The inclusion of active PFC (Power Factor Correction) offers superior line efficiency and lower harmonic distortion compared to legacy power supply units. To protect connected battery banks against damage, the module features built-in battery low shutdown and polarity protection circuitry. Designed for 24 V nominal control panels, security systems, and remote telemetry, this unit optimizes board space while ensuring uninterrupted operations during main grid failures.