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JT 12V 33.3A 400W Rainproof Power Supply

Designed for outdoor use, rainproof power supply offers reliable performance in harsh weather conditions. With perfect rainproof protection, they provide stable power for LED advertising signs, outdoor displays, LED lightboxes, and LED signage. Available in 5V, 12V, 24V options with power capacities ranging from 60W to 1000W, Factory-direct pricing—contact us for more information!

  • Model Number JT-400W 12V
  • Input voltage 200-240V
  • Output voltage 12V DC
  • Output Power 400W
  • Size 182*118*50mm
  • Warranty 2 years
  • Protection Over voltage, over current, short protection

Feature

◎ 100% full load, 100% aging test 
◎ Quality aluminum shell with oxidation gold finish
◎ Good quantity can customize shell color and LOGO
◎ All 100% new component, long life and high reliability 
◎ Intelligent chip control, over voltage, over current, short protection
◎ High speed and quality Fan cooling, with good dissipation and reliable

specification

Model JT-12V 400W JT-24V 400W
OUTPUT DC voltage 12V 24V
Rated current 33.3A 16.7A
Cuttent range 0-33.3A 0-16.7A
Rated output power 400W 400W
Ripples and noise ≤200mVp-p ≤300mVp-p
Output current range 11.5-12.5V 23-25V
Precision of output voltage regulation ±0.5% ±0.5%
Rate of lenear adjustment ±0.5% ±0.5%
Load adjustment rate ±0.5% ±0.5%
The startup time ≤2s/230VAC
INPUT Keep time 10ms/230VAC
Voltage range 176-264VAC
Frequency range 50Hz
Power factor PF≥0.6/230VAC
Efficiency ≥89% ≥91%
Alternating current 3.4A/230VAC
Surge current 50A/230VAC
Leakage current <5mA/230VAC
PROTECTION Overload 110%-140%: rated 110%-140% of the total power input
protection mode:Auto recovery mode.the system automatically recovers when abnormal load conditions are removed
Short circuit protection mode:Auto recovery mode.the system automatically recovers when abnormal load conditions are removed
Over voltage protection mode:self-recovery mode,automatic recovery when the overvoltage is removed
Over temperature protection mode:self-recovery mode,automatically recover when the temperature drops
ENVIRONMEN working temperature -35~+50°C
working humidity 20-90% RH
storage temperature;humidity -30~+85°C; 10~95% RH
temperature coefficient ±0.1%/°C(0-35°C)
resistance to vibration 10-500Hz, 3G 10min. / 1 cycle,  60 min. each axes
SAFETY&EMC safety norms EN60950 , GB4943.1 -2011
withstand voltage l/P-O/P:1.5KVAC l/P-FG:1.5KVAC O/P-FG:0.5KVAC
insulation impedance l/P-O/P, l/P-FG, 0/P-FG:100M Ohms / 500VDC / 25°C/ 70% RH
EMC --
other protection grade IP62
MTBF ≥30khour 25℃
power supply size L182*W118*H50mm
 power supply weight 457g
NOTE 1.Unless otherwise specified , all specification are measured at an input of 230VAC,rarted negative cut,and ambient temperature of  25°C
2.Ripple and noise measurement method:the measured end is connected in parallel with a 0.1uF+10uF capacitor,the oscilloscope is set to 20MHZ bandwidth,and the probe is tested with cap off and full load at 25°C
3.Accuracy :includes setting error , linear adjustment rate and load adjustment rate .
4. The output power is reduced when the input voltage is less than 200VAC.

Caution

● The product MUST be installed vertically and the wiring terminals downwards.
● For the heat dissipation, distance of 10cm from 4 sides (up/down/right/left) and 5cm from the ventilation hole side should be kept
Installation-instruction-1

OEM Customer design

01020304

Model List

Our factory offers OEM customization, allowing us to tailor various models and parameters to meet your specific needs. Feel free to contact us for more information and personalized solutions.
Model Power Out Input Voltage Output Voltage Output Current Efficiency IP Size(mm) Package
JT-60W 12V 60W 200-240V AC 12V 5.0A 93% IP43 130*74*42 100
JT-100W 12V 100W 200-240V AC 12V 8.3A 93% IP43 148*74*42 100
JT-150W 12V 150W 200-240V AC 12V 12.5A 93% IP43 148*74*42 100
JT-200W 12V 200W 200-240V AC 12V 16.7A 92% IP43 195*74*42 80
JT-300W 12V 300W 200-240V AC 12V 25.0A 92% IP43 182*93*50 50
JT-400W 12V F 400W 200-240V AC 12V 33.3A 80% IP43 182*118*50 48
JT-400W 12V E 400W 200-240V AC 12V 33.3A 80% IP43 182*118*50 48
JT-400W 12V C 400W 200-240V AC 12V 33.3A 92% IP43 182*118*50 48
JT-500W 12V 500W 200-240V AC 12V 41.7A 90% IP43 205*118*50 30
JT-600W 12V 600W 200-240V AC 12V 50.0A 90% IP43 205*118*50 30
JT-700W 12V 700W 200-240V AC 12V 58.3A 90% IP43 220*118*50 30
JT-1000W 12V 1000W 200-240V AC 12V 83.3A 90% IP43 220*118*50 30
JT-400W 24V 400W 200-240V AC 24V 16.7A 92% IP43 182*118*50 48
JT-700W 24V 700W 200-240V AC 24V 29.1A 90% IP43 220*118*50 30
JT-200W 5V 200W 200-240V AC 5V 40.0A 92% IP43 182*118*50 48
JT-300W 5V 300W 200-240V AC 5V 60.0A 92% IP43 182*118*50 48
JT-350W 5V 350W 200-240V AC 5V 70.0A 90% IP43 205*118*50 30
JT-400W 5V 400W 200-240V AC 5V 80.0A 90% IP43 205*118*50 30
JT-500W 5V 500W 200-240V AC 5V 100.0A 89% IP43 220*118*50 30

application

The MIJI LED Rainproof Power Supply is ideal for powering LED channel letters, illuminated signs, and outdoor LED advertising. Designed with a rainproof structure, it provides reliable performance for outdoor LED signage, LED lightboxes, and advertising displays. Perfect for storefront signs, commercial billboards, and various outdoor LED lighting applications, MIJI power supplies ensure stable and durable power in all outdoor environments.
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