Solutions for your safety

Type: SMP21 DC 24 V/20 A


Primary pulsed switched mode power supply (SMPS) for rail mounting, wide range input, integral active power factor correction (PFC), high power reserve and selectable parallel mode.

Features and Benefits:

  • Wide range voltage input from AC 90 to 264 V
  • Efficiency up to 90%
  • Integral power factor compensation
  • Parallel mode for performance improvement (selectable by switch)

Will be discontinued - available until 31.12.2018

Technical Data

Supply 1-phase
Operating voltage (V) AC 100 V - AC 240 V
Input voltage range (V) AC 90...264 V
Output voltage (V) DC 24 V
Output rated current (A) 20 A
Effective output (W) 480 W
Typical boost (%) 125%
Short circuit behaviour U/I
Typical efficiency (%) 90%
Mounting Symmetrical rail
Temperature range -40C...70C
Screw terminals Pcb mounted
Plug-in type
Certificates UL508, CSA C22.2 No. 107.1 (listed) UL 60950-1, CSA C22.2 No. 60950-1 (recognized) EN 60950-1 / EN61558-1 / EN61558-2-16



  • Automation
  • Automation & Process Control
  • Automotive Manufacturing
  • Chemical, Oil & Gas
  • Pharmaceutical & Food
  • Power Engineering DC 24 V