MOSFET redundancy module
24V, 40A

  • For N+1 and 1+1 redundant systems
  • Dual input with single output
  • Suitable for all DIMENSION power supplies
    except QT20 and QTD20 series
  • Only 72mV voltage drop at 20A output current
  • Only 1.7W loss at 20A and 5.9Wat 40A output current
  • 160% (65A) Peak load capability
  • Reverse input polarity protection
  • Full power between -40°C and +60°C
  • Width only 36mm
  • Rugged metal housing
  • Easy wiring:
    Distribution terminal for negative pole included
DC Output12-28Vdc
Input DC 12V-28V
Size (WxHxD)36 x 124 x 127mm
Product Status Stock item 
Technical Data

Input Data
Input Current2*20A
Nominal Current Per Input20A
DC-Input Voltage DC 12V-28V
Voltage Drop72mV (H2)

Output Data
Output Current 40A
Output Current Range40A  (F2)
Output Current Short circuit max.26.00A (G2)

Size (WxHxD)36mm x 124mm x 127mm
Weight per Piece (excluding packing)280g
Operat. Temperature Range-40°C ... +70°C
Derating1W/°C at >+60°C
Mounting Method Din-Rail
Power Losses, typ.1.7W
Power Losses no Load0.2W
MTBF SN 29500 @ 40°C (h)4.500.000h
Connection methodscrew terminals
F2)50% higher currents are allowed up to 5s
G2)Current at voltage <6V
H2)1+1 -redundancy (=50% of the nominal current) and symmetrical input currents
Commercial Information

Article NumberYR40.242
UPC Code875404001935
Country of originCZ
Product Status Stock item 
E ClassificationeClass 5.1 27242213
eClass 6.x 27049005
eClass 7.x 27049005
eClass 8.0 27210902
eClass 9.0 27040701
ETIM 4.0 EC000599
ETIM 5.0 EC002540
HS Code HS 85044082
Warranty Period (Month)36
Packaging Unit1pc
Accessories / Complementary Units

Wall / panel mount bracketZM2.WALL
Wall / panel mount bracketZM10.WALL
Side mounting bracketZM11.SIDE
Adapter for Siemens S7-300 railSLZ10