24V DC fire linkage power supply fire power box Hongsheng High tech

Description :

　　※ Complies with the requirements for power supply in GB4717-2005, GB14287.1-2014, GB/T21197-2007, and GB16806-2006

　　Master Seamless switching of backup power supply

　　Meet the requirements of lightning surge. Electrostatic discharge Electrical transient fast pulse group interference Conducted harassment Test requirements for AC power supply frequency drop and instantaneous power failure

　　Good weather resistance and insulation safety, meeting the requirements of insulation withstand voltage and wet heat test

　　Long term overcurrent Short circuit protection function Self recoverable

　　Complete battery charging and discharging management Constant current voltage limiting charging method

　　※ Backup power single switch function

　　Technical Specifications

　　1. Working environment temperature: -10 ℃ -42 ℃, temperature: ≤ 95% RH (40 ℃)

　　2. AC input voltage: AC187V-242V, 47-63HZ

　　3. DC output voltage output current

　　Explanation: (1) Output voltage Current testing environment: 0-40 ℃, 45% -75% RH

　　(2) When powered by batteries, the output voltage of the 24V power supply is the battery voltage.

　　4. Output mainstream voltage ripple noise:

　　Ripple ≤ 1%, noise ≤ 2%

　　5. Insulation resistance (15-35 ℃, 45% -75% RH): Input casing>50M Ω: Output to casing>20M Ω

　　6. Voltage resistance strength (15-35 ℃, 45% -75% RH): Input - chassis AC1500V (effective value) Frequency 50HZ, time 1 minute (leakage current ≤ 5mA)

　　Output - chassis AC500V (effective value) Frequency 50HZ, time 1 minute (leakage current ≤ 5mA)

　　7. Protection function

　　(1) Overcurrent protection: When there is an output short circuit or overcurrent, the protection will activate and automatically recover after the fault is eliminated.

　　(2) Battery undervoltage protection: When the battery voltage drops to 20V ± 0.5V during backup operation, the power supply cuts off the discharge circuit to prevent battery damage caused by overdischarging.

　　(3) Battery grounding protection: When the battery is positive When the negative terminal is connected to the power supply casing or the ground, it does not damage the battery and power supply.

　　8. Battery charging function

　　The charging method is constant current voltage limiting, with an average charging current of 0.5A and a floating charging voltage of 28V ± 0.5V

　　9. Work status indication function

　　The system generates the following 6 working status signals, which are indicated by LED lights on the panel.

　　Main power operation: refers to the system being in normal working output state with AC220 AC power input that meets the requirements.

　　Backup operation: refers to the working state where the AC220 AC input voltage is below AC170 ± 15V, and the battery is controlled by the system to supply power to the load separately.

　　Main power failure: refers to the situation where the effective value of the AC220 AC input voltage is lower than AC170 ± 15V when the main power is working.

　　Backup power failure: refers to the situation where the connecting wire between the system and the battery is short circuited or disconnected.

　　Output fault: refers to the occurrence of an output fault.

　　Charging status: refers to the charging state of the charger in this system.

AfterSalesService :

• DC fire linkage power supply