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215x115x30mm Slim Profile | 12V DC Output | 29A Rated Current | 200% Peak Power | Built-in Fan | 3-Year Warranty
The LRS-350N2-12 is the 12V output model in MEAN WELL's LRS-350N2 series of 350W single-output enclosed industrial power supplies. Delivering 29A at 12V DC with 348W rated power, this model is optimized for high-current low-voltage industrial control systems, large LED lighting arrays, and automation equipment requiring a stable 12V rail with substantial current headroom.
Like all LRS-350N2 models, the LRS-350N2-12 uses a switchable 90~132VAC / 180~264VAC input (selected via built-in switch) and supports 240~370VDC input. It features the series' signature 200% peak power capability - delivering up to 696W momentarily to handle motor inrush and capacitive load startup without triggering protection circuits. With 29A continuous current, it handles demanding 12V loads that would overwhelm lesser power supplies.
The 12V output is the most commonly used voltage for PLC controllers, relay logic, sensor networks, LED strip lighting, and DC motors. The LRS-350N2-12's built-in DC fan with intelligent thermal control (activates at 50C, off at 40C) enables sustained full-load operation even in hot industrial environments - a critical advantage for sealed control cabinets.
The LRS-350N2-12 holds IEC/UL62368-1, BS EN/EN61558-1/-2-16, and GB4943.1 (CQC) certifications, is rated for operation at altitudes up to 2,000 meters, and comes with a 3-year warranty. Note: Not compliant with EN61000-3-2 for certain EU applications.
| Model | LRS-350N2-12 |
| DC Output Voltage | 12V |
| Rated Current | 29A (0 ~ 29A) |
| Rated Power | 348W |
| Peak Power (200%) | 696W (t <= 5s, duty <= 35%) |
| Ripple & Noise (max) | 150mVp-p |
| Voltage Adjustment Range | 10.2 ~ 13.8V |
| Voltage Accuracy | +/-1.5% |
| Line Regulation | +/-0.5% |
| Load Regulation | +/-1.0% |
| Efficiency (Typ.) | 85% |
| Overvoltage Protection | 13.8 ~ 16.2V (shutdown output, auto-recovery) |
| Input Voltage Range | 90~132VAC / 180~264VAC (switch-selectable); 240~370VDC (switch at 230VAC) |
| Input Surge Immunity | Withstands 300VAC surge for 5 seconds |
| Frequency Range | 47~63Hz |
| AC Current (Typ.) | 6.8A / 115VAC | 3.8A / 230VAC |
| Inrush Current (Typ.) | 60A / 115VAC | 60A / 230VAC (cold start) |
| Leakage Current | < 2mA / 240VAC |
| Overload Protection | >105% rated power for >5 sec -> output shutdown, auto-recovery; >200% -> hiccup mode, auto-recovery |
| Short Circuit Protection | Hiccup mode, auto-recovery after fault removal |
| Over-temperature Protection | Shutdown output, auto-recovery after temperature drops to safe level |
| Fan On/Off Control | RTH3 >= 50C fan on, <= 40C fan off (intelligent thermal management) |
| Operating Temperature | -20~+70C (refer to derating curve) |
| Operating Humidity | 20~90% RH, non-condensing |
| Storage Temp / Humidity | -40~+85C, 10~95% RH |
| Vibration Resistance | 10~500Hz, 5G, 10 min/cycle, 60 min each for X, Y, Z axes |
| Overvoltage Category | OVC III (EN61558, EN50178, EN60664-1, EN62477-1; up to 2,000m) |
| MTBF | >= 1,857.9K hrs (Telcordia SR-332); >= 226.2K hrs (MIL-HDBK-217F, 25C) |
| Dimensions | 215 x 115 x 30 mm (LxWxH) |
| Net Weight / Packaging | 0.76 kg / 15 pcs per carton / 12.4 kg / 0.67 CUFT |
| Safety Standards |
IEC/UL62368-1, BS EN/EN61558-1, BS EN61558-2-16 CQC: GB4943.1 | BSMI: CNS15598-1 | EAC: TP TC 004 BIS: IS 13252(Part1):2010 / IEC60950-1:2005 (except 48V) Design refers to: BS/EN/EN62368-1, AS/NZS 61558.1/2.16, AS/NZS 62368.1 |
| Withstand Voltage | I/P-O/P: 3.75KVAC | I/P-FG: 2KVAC | O/P-FG: 0.5KVAC |
| Insulation Resistance | I/P-O/P, I/P-FG, O/P-FG: > 100Mohm / 500VDC / 25C / 70% RH |
| EMC Emissions |
BSMI CNS15936, EAC TP TC 020 Note: Not compliant with EN61000-3-2 harmonic current limits for certain EU applications. |
| EMC Immunity | BS EN/EN55035, EAC TP TC 020 |
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