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Welcome to use the products of Quanzhou Hengtong Digital Co., Ltd. in Fujian Province. This series of products is a rack mounted power supply, which is our latest independently developed high-end export-oriented product suitable for large-scale project centralized and partial centralized power supply projects. The standardized individual protection output interface has a maximum protection output current of 2.5A per channel, and can be used in parallel with multiple channels. The transmission distance can reach up to 120 meters. The products are convenient, stable, and beautiful to use, suitable for various terminals such as gun guns, infrared cameras, dome cameras, listeners, etc. It is the preferred highly integrated project product for security projects such as shopping malls, hotels, schools, residential areas, banks, and prisons.
HT-SDPS-D12/36/I(P3)
Wall mounted centralized power supply
● Standard 1U industrial chassis appearance, convenient for wall mounted installation.
● External partition voltage regulation, external partition current and voltage display.
● Adopting an efficient and environmentally friendly switch mode power supply circuit structure.
● Total output power of 450W (12V/37.5A).
● Low ripple ensures more stable video signal output and clearer images for the camera.
● Each circuit has electronic short-circuit protection function.
● Adopting an efficient resonant topology circuit design, the efficiency can reach up to 90%.
● Power protection function: overvoltage protection OVP, overload protection, short circuit protection.
● The product is produced using strict processes, with 100% aging and full functional testing before leaving the factory.
Input parameter Input Voltage 180V~264Vac The input voltage is single-phase voltage and has a reliable grounding wire
Input voltage frequency 47~53Hz Suitable for voltage range of 220-238V
Surge current A 50A max When starting the power supply at an ambient temperature of 25 ° C, the surge current should not exceed 50A
Conversion efficiency ≥90% The product adopts a resonant topology circuit design with a conversion efficiency of ≥ 90%
Power factor ≥0.5 The local power supply does not come with a power factor correction circuit (PFC)
Standby power ≤1W The power consumption of the product when not connected to a load should be less than 1W (input voltage is 230V)
Start and rise time 100ms/25ms Product startup time<100ms, input voltage rise time<25ms
Hold time 2ms At standard 230V input, its holding time is ≥ 2ms
Output parameters Output voltage 12V The standard voltage at the branch end when leaving the factory is 12.2V~12.4V
Output voltage regulating range 12V~14V Adjust the knob on the front panel to adjust the output voltage between 12V and 14V
Output current 37.5A Output current 37.5A
Output power 450W Total output power 450W
Peak output power 37.5A/450W The peak output power is 450W, with a duration of 1 minute and a 5-minute interval between two adjacent peaks
Voltage ripple ≤200mVp-p When testing ripple, connect a 10U electrolytic capacitor and a 0.1U ceramic capacitor in parallel at the input end of the electronic load
Voltage regulation < ± 1% When the input voltage changes between 180-264V under full load, the rate of change of the output voltage is less than ± 1%
Load Regulation < ± 3% The rate of change in output voltage is less than ± 3% when the load changes from 0 to 100% at the nominal input voltage
LED indication Each branch has a separate green LED indicator, which does not light up when there is a fault or load short circuit in the branch
Voltage detection display Supports up to three partitions to display the current output voltage value
Current detection display Supports up to three partitions to display the current load usage current value
Protection function Output current limiting <37.5A When the load exceeds the specifications, the local current limiting circuit will limit the total output current to within 37.5A
Overvoltage protection OVP 14V~15V When overvoltage occurs, the power supply stops working to protect the safety of the load. After the overvoltage fault is eliminated, the power supply automatically resumes normal operation
Short circuit protection Separate branch protection When a group of loads is short circuited, the protection circuit of that group will not affect the normal output of other branches
Environmental parameters Working temperature/humidity Temperature:- 10℃~+40C; Humidity: 20%~80% RH
Storage temperature/humidity Temperature:- 20℃~+70C; Humidity: 10%~90% RH
Voltage withstand test 3000V The test conditions are: input-output can withstand AC3KV/60 seconds of testing
Insulation impedance >20MQ At standard 500VDC, the insulation impedance between the input circuit and the output circuit is greater than 20MQ
Lightning voltage testing standard IEC61000-4-5 and GB17626.5 standards, 10KA 8/20 μ s protection level, common mode>4KV, differential mode>6KV
MTBF 50000 hours The MTBF time of the power supply at an ambient temperature of 25 ° C is 50000 hours, MIL-HDBK-217F（25）
Product size Size L392mm*W378mm*H43mm(P3)