Achieving 88% typical efficiency, it uses a built-in DC fan for forced-air cooling through its perforated 225 × 124 × 30 mm metal case—maintaining the signature 30mm 1U profile. It operates reliably from -20°C to +60°C (with derating). Comprehensive protection includes short circuit, overload, over voltage, and over temperature safeguards. A power-on LED, no-load consumption below 0.75W, 5G vibration resistance, 100% full-load burn-in, and 3-year warranty make the LRS-450-12 the definitive choice for maximum 12V power in space-constrained industrial installations.
444W Maximum Output: 12V @ 37A—the most powerful LRS model; drives CNC systems, laser cutters, large LED walls, and high-current automation.
Switch-Selectable Universal Input: 90–132 / 180–264V AC and 255–370V DC; 300V AC surge immunity for 5 seconds.
1U Slim with Forced Cooling: 30mm profile, built-in DC fan for active cooling—balances ultra-high power with space-saving design.
Four-Way Protection: Short circuit, overload (110–150%, hiccup/auto-recover), over voltage (13.8–16.2V), and over temperature protection.
Industrial Reliability: -20°C ~ +60°C operation, 5G vibration, <0.75W no-load loss, power-on LED, IEC/UL 62368-1 compliance, 3-year warranty.
MODEL: LRS-450-12
BRAND: Mean Well
TYPE: Enclosed AC/DC Single-Output Switching Power Supply
|
Category |
Specification |
|---|---|
|
DC Output Voltage |
12V |
|
Rated Current |
37A |
|
Current Range |
0 – 37A |
|
Rated Power |
444W |
|
Voltage Adjust Range |
10.2 – 13.8V |
|
Ripple & Noise (max.) |
150mVp-p |
|
Voltage Tolerance |
±1.0% |
|
Line Regulation |
±0.5% |
|
Load Regulation |
±1.0% |
|
Setup / Rise Time |
1500ms / 50ms (full load) |
|
Hold-up Time (Typ.) |
16ms @230V AC, 12ms @115V AC |
|
Input Voltage Range |
90–132V AC / 180–264V AC (switch); 255–370V DC |
|
Input Frequency |
47–63Hz |
|
Efficiency (Typ.) |
88% |
|
AC Current (Typ.) |
8.5A @115V AC, 4.3A @230V AC |
|
Inrush Current (Typ.) |
Cold start 60A @115V AC, 60A @230V AC |
|
Leakage Current |
<2mA @240V AC |
|
Overload Protection |
110–150% rated power, hiccup mode, auto-recovery |
|
Over Voltage Protection |
13.8–16.2V, shut down output, re-power to recover |
|
Over Temperature Protection |
Shut down output, recover after temperature drops |
|
Short Circuit Protection |
Hiccup mode, auto-recovery |
|
Cooling |
Built-in DC fan, forced air convection |
|
Operating Temp. |
-20°C ~ +60°C (refer to derating curve) |
|
Operating Humidity |
20–90% RH, non-condensing |
|
Storage Temp. |
-40°C ~ +85°C |
|
Vibration |
10–500Hz, 5G |
|
Isolation |
I/P-O/P: 3kV AC; I/P-FG: 2kV AC; O/P-FG: 0.5kV AC |
|
Dimensions (L×W×H) |
225 × 124 × 30 mm |
|
Weight |
Approx. 0.86 kg |
|
Indicator |
Green LED for power-on |
|
No-load Power |
<0.75W |
|
Certifications |
IEC/UL 62368-1, BSMI CNS14336-1, EAC TP TC 004, KC K60950-1, AS/NZS 62368.1 |
|
Warranty |
3 years |
