C3 Main power unit

DIN rail power supply unit, for DIN rail mounting

Type designation:

C3 Main power unit
DIN rail power supply unit,
primary-switched mode,
slim design,
Output: 24V DC / 1,5A
Input: 100V AC - 240V AC


  • Supply of C3 modules via the DIN rail connector (internal bus) with a regulated 24V DC
  • The electronic short-circuit and idling-proof device is connected to single-phase AC networks with nominal voltages of 100V AC to 240V AC or to two of the phase conductors of three-phase networks with a linked voltage of this value. In the event of a malfunction, the output voltage is limited to 30V DC
  • Operating voltage display LED green

Input data

  • Nominal input voltage 100V AC to 240V AC, AC
    input voltage range 85V AC to 264V AC, approx. 0,75A
  • AC frequency range 45Hz to 65Hz
  • Power failure bypass > 35ms (120V AC), > 150ms (230V AC)

Output data

  • Nominal output voltage 24 V DC ±1 %, 1,5 A (-25 °C ... 60 °C)

Mechanical characteristics

  • Compact Snap-on plastic housing 35 x 99 x 95mm (WxHxD)with DIN-rail-bus
  • Screw-type terminals, plug connection for connection max. 2,5mm²


  • Connection in parallel for redundancy and increased capacity, maximum of 2 devices for redundancy on DIN rail connector

Block diagram C3 Main power unit

Technical data:

  • Type of construction:
    snap-on plastic housing (polyamide)
    with DIN-rail-bus 35 x 99 x 95mm (WxHxD)

  • Degree of protection:

  • Weight:
    approx. 250g

  • Climatic conditions:
    ambient temperature (operation):
    -25°C to 70°C (> 60°C derating)
    ambient temperature (storage/transport):
    -40°C to 85°C 
    max. permissible relative humidity (operation):
    ≥ 95% (at 25°C, no condensation)

  • Connection:
    screw-type terminals/ plug connection max. 2,5mm²

  • Supply voltage:
    nominal input voltage: 100V AC-240V ACAC
    input voltage range: 85V AC-264V ACAC
    frequency range AC 45Hz-65Hz

  • Current consumption:
    approx. 0,75A (120V AC), 0,45A (230V AC)

  • Inrush surge current:
    < 15A (0,6A2s)

  • Power failure bypass:
    > 35ms (120V AC), > 150ms (230V AC)

subject to change