Protection module
24V, 4A

  • Protection module with one input and four outputs
  • Ensures sufficient supply voltage (21V) for critical loads
  • Protects small cable sizes against overload
  • Integrated control for remote monitoring and operation
  • Hassle free turn-on of loads with large input capacitors
  • Maximum total output current: 4A

Output DC 24V
1A , 1A , 1A , 1A
Input DC 18V-30V
Size (WxHxD) 45 x 75 x 91mm
Weight 120g
Order information Stock Item 
Product Description
This protection module fulfils two basic functions: Firstly, it distributes the current of a large power source to four lower current output channels and therefore allows for smaller wires to be used. The second function is to permit only as much current on the outputs that the input voltage of this unit (which corresponds to the output voltage of the power supply) does not drop below 21V. This ensures a safe and an uninterrupted supply voltage for sensitive equipment, such as PLCs, controls or sensors, when they are connected directly to the same power supply as the PISA module. Less critical loads that are not affected by short voltage interruptions or that could even be the cause of a fault on the 24V power supply are connected to one of the four current controlled output channels of the PISA module.
Technical Data
Input Data
DC-Input Voltage DC 18V-30V
DC Input Current at no load, typ.43mA
Required Input Voltage for turning on the outputs, typ21.4Vdc
Turn-on Delay of Outputs270ms
Input voltage protection level min./max.21.0-21.8Vdc
Output Data
Adjustment Range 24-28V
Output Current 1A , 1A , 1A , 1A
Output Current (all 4 outputs together) 4A
Output current limination min./max.9.0/12.7A
Shutdown-times at short circuit, typ110ms
Voltage drop, typ.41:
Size (WxHxD) 45mm x 75mm x 91mm
Weight per Piece (excluding packing) 120g
Operat. Temperature Range-25°C ... +70°C
Mounting Method Din-Rail
Power Losses, typ.1.0W
Power Losses no Load1.0W
MTBF SN 29500 @ 40°C (h)2.347.000h
Connection methodScrew Terminals
Commercial Information
Article Number PISA11.401
UPC Code 875404001751
Country of origin CZ
Order information Stock Item 
E Classification eClass 5.1 27141116
eClass 6.x 27141116
eClass 7.x 27141116
eClass 8.0 27141116
eClass 9.0 27141116
ETIM 4.0 EC000899
ETIM 5.0 EC000899
HS Code HS 85044082
Warranty Period (Month) 36
Packaging Unit 1pc
Accessories / Complementary Units
Wall / panel mount bracket ZM3.WALL