MEAN WELL DRS-240 & DRS-480 DIN Rail Security Power Supplies

MEAN WELL DRS-240, and DRS-480 AC/DC DIN Rail-Type Security Power Supplies are 240W and 480W all-in-one intelligent security power supplies. In addition to the primary output, the MEAN WELL DRS-240 and DRS-480 AC/DC DIN Rail-Type Security Power Supplies feature an additional charger circuit that automatically adjusts the charge current depending on the primary output current. DRS-240 and DRS-480 accept a universal 90VAC and 305VAC input voltage. DRS-240 supports output 12VDC, 24VDC, 36VDC, and 48VDC nominal systems, while DRS-480 supports 24VDC, 36VDC, and 48VDC. With high efficiency of up to 93.5% (DRS-480) or 92% (DRS-240), these power supplies can operate with free air convection cooling under -30°C through +70°C ambient temperature. Key protection features include overload, over-voltage, battery low voltage disconnect, and battery reverse polarity protection. DRS-240 and DRS-480 also provide Form-C contacts and LED indicator alarm signals for AC-fail, battery low, charger circuit fail, and DC-OK to allow easy integration into security systems that comply with local alarm codes.

Features

  • 240W or 480W rated wattage
  • 90VAC to 305VAC (277VAC available) universal input
  • Output voltage
    • 12V to 48V (DRS-240)
    • 24V to 48V (DRS-480)
  • All-in-one function with power supply, DC-UPS, battery charger, and status monitoring in one compact unit
  • Protections
    • Short circuit
    • Overload
    • Overvoltage
    • Over-temperature (auto derating)
    • Battery reverse polarity (No damage)
    • Battery cut off / Battery low protection
    • Battery reverse polarity protection
  • Signal and alarms design meet UL2524.NFPA 1221, BS EN/EN54-4, and GB17945 requirements, with adjustable parameters configurable by the communication interface
  • Form C relay contacts and LED indicators for AC Fail, Battery Low, Charger Fail, and DC-OK
  • Load-dependent high-speed battery charging
  • Built-in MODBus protocol, CANBus optional
  • -30°C to +70°C operating temperature range
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • Charging curve can be set with SBP-001
  • 20% to 100% charging current adjustable by VR
  • 2- or 3-stage selectable by DIP S.W
  • Suitable for lead-acid and lithium-ion batteries
  • 3-year warranty

Applications

  • Public safety battery back-up (red box)
  • Security systems
  • Emergency lighting systems
  • Alarm systems
  • Uninterruptible DC-UPS systems, battery detection systems
  • Central monitoring systems
  • Industrial automation

Block Diagram

Block Diagram - MEAN WELL DRS-240 & DRS-480 DIN Rail Security Power Supplies

MEAN WELL DRS-240 & DRS-480 DIN Rail Security Power Supplies