Technical Information & Details for MEAN WELL AD-155B Power Supply Output Power: 151.55 W (Total Output) Output Voltage: CH1: 27.6 V DC, CH2 (Battery Charger): 27.1 V DC Output Current: CH1: 5 A, CH2: 0.5 A (Current Range 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 (CH1) Inrush Current: Max. 23 A @115 VAC / 45 A @230 VAC (Cold Start) Power Factor (Typ.): PF > 0.92 at full load Working Temperature: −10 °C to +60 °C (Refer to derating curve) Cooling: Free air convection (Fanless option / 21.6 CFM forced air option) Protections: Short circuit, Overload, Overvoltage, Battery low protection Isolation Voltage: 3000 V AC (I/P-O/P), 2000 V AC (I/P-FG), 500 V AC (O/P-FG) Dimensions (L x W x H): 199 mm x 110 mm x 50 mm Weight: approx. 880 g Safety & EMC Certificates: UL62368-1, TUV EN62368-1, EAC TP TC 004, BS EN/EN55032 Class B Warranty: 2 Years Information about MEAN WELL AD-155B Designed for critical backup applications, the MEAN WELL AD-155B features a built-in UPS function with battery charger to keep essential hardware running seamlessly during power interruptions. The primary channel allows precise fine-tuning via its CH1 voltage adjustment range of 24–29 V DC, giving system builders flexibility across varying load requirements. Power quality is optimized through an active power factor correction exceeding PF>0.92 at full rated load. Engineered for industrial durability, it easily withstands demanding environments thanks to its vibration resistance rated up to 2G.

Technical Information & Details for NEXTYS NUPS24 DC-UPS Module Load Rated Voltage: 24 V DC (Vin - 0.4 V) Maximal Load Current: 10 A Charging Current Limit: 2.0 A or 4.0 A (selectable) Input Voltage Range: 26 – 28.5 V DC Input DC Rated Current: 3 – 10 A Battery Compatibility: Lead Acid and Lithium batteries Deep Discharge Protection: Cut-off at 18.0 V DC ± 0.5 V Battery Fuse: 15 A Mini blade type (user replaceable) Operating Temperature: −40 °C to +70 °C (derating above 60 °C) LED Indicators: PS OK, LOAD OK, BATT OK, BATT LOW, REVERSE POLARITY Status Signaling: Dry contact (SPDT, 24 V DC / 1 A) Protection Functions: Reverse polarity, Short-circuit, Overload, Deep discharge Isolation to Enclosure: 0.75 kV DC Case Material: High-quality Aluminum Dimensions (W x H x D): 54 mm x 115 mm x 110 mm Weight: approx. 300 g Safety & EMC Standards: UL508, CE, IEC/EN61010, EN55011 Manufacturer Warranty: Standard Factory Warranty (Nextys Switzerland) Information regarding NEXTYS NUPS24 The NEXTYS NUPS24 serves as a high-performance DC-UPS and battery management module, engineered for 24V industrial systems requiring maximum uptime. As specified in the datasheet_nups12_-_nups24_v10-0.pdf, this device facilitates parallel battery charging and load supply, ensuring that the connected equipment remains powered even during primary supply failures. The module's instantaneous switch-over to backup mode is a critical advantage for sensitive digital controllers, while its customizable charging current (2A or 4A) allows for optimal adaptation to various battery capacities and types, including Lead Acid and Lithium. Designed for reliability in harsh environments, the NUPS24 features a slim aluminum chassis that fits perfectly onto standard DIN-rails while saving valuable cabinet space. Beyond its integrated 15A overcurrent fuse, it offers comprehensive system transparency through a multi-LED diagnostic display and a built-in SPDT dry contact relay for remote status alerts. With its wide operating temperature range and adherence to strict UL508 safety standards, the NUPS24 is a robust and intelligent choice for securing PLC networks, sensor systems, and emergency lighting infrastructures.

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.

Technical Information & Details for the MEAN WELL SDR-480-24 Power Supply Output Power: 480 W (720 W Peak) Output Voltage: 24 V DC Output Current: 20 A Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC, 47 – 63 Hz Efficiency: 94% Ripple & Noise: ≤ 100 mVp-p Inrush Current: 40 A @ 115 VAC / 80 A @ 230 VAC Power Factor: PF > 0.94 Operating Temperature: -25 °C to +70 °C Cooling: Free air convection Protection Functions: Short circuit, Overload, Over voltage, Over temperature Voltage Adjustment Range: 24 – 28 V Isolation Voltage: 3000 V AC I/P-O/P Dimensions (W x H x D): 85.5 mm x 125.2 mm x 128.5 mm Weight: 1.6 kg Safety & EMC Certificates: UL 508, TUV EN62368-1, BS EN/EN61000-6-2, EAC, CE Status Indicators: DC OK relay contact and LED indicator Manufacturer Warranty: 3 Years Information about the MEAN WELL SDR-480-24 The MEAN WELL SDR-480-24 stands out as a high-performance solution for demanding industrial environments, boasting an impressive efficiency of up to 94%. This high efficiency significantly minimizes power dissipation, allowing the unit to operate reliably using only free air convection cooling within a slim 85.5mm chassis. One of its most critical advantages is the 150% peak load capability, which enables the power supply to deliver up to 720W for 3 seconds. This feature is particularly vital for powering loads with high startup currents, such as motors or capacitive loads, ensuring system stability without the need to over-dimension the power supply unit. Engineered for maximum reliability, the SDR-480-24 includes a built-in active PFC function and a DC OK relay contact for remote monitoring of the output status. The unit is fully compliant with industrial immunity levels (EN61000-6-2) and carries UL 508 approval, making it a robust choice for industrial control systems, fabrication equipment, and automation machinery. With its constant current limiting circuit and comprehensive protections against short circuits and over-temperature, this DIN rail power supply ensures long-term operational safety and minimal maintenance requirements in complex hardware setups.