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Zener Barrier SB4420

  • 2-channel
  • DC version, positive polarity
  • Working voltage 24 V at 2 µA
  • Series resistance max. 177.5 Ω
  • Fuse rating 32 mA
  • Terminal Base or Termination Board mounting, pluggable
  • Replaceable back-up fuse

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Hent hele databladet som PDF:

Uddrag af datablad: Tekniske data for   SB4420

General specifications
TypeDC version, positive polarity
Electrical specifications
Nominal resistancewithout back-up fuse 152 Ω , with back-up fuse 168.5 Ω
Series resistancewithout back-up fuse max. 157.5 Ω , with back-up fuse max. 177.5 Ω
Fuse ratinginternal fuse 32 mA , back-up fuse 32 mA
Hazardous area connection
Connectionterminals 13; 23
Safe area connection
Connectionterminals 11, 12; 21, 22
Working voltage24 V at 2 µA
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Storage temperature-40 ... 80 °C (-40 ... 176 °F)
Mechanical specifications
Degree of protectionIP20 (installed on Terminal Base or Termination Board)
Connectionwiring via Terminal Base or Termination Board
Massapprox. 70 g
Dimensions9.7 x 70.4 x 68.2 mm (0.4 x 2.8 x 2.7 inch)
MountingTerminal Base or Termination Board mounting on 35 mm DIN rail acc. to DIN EN 60715
Data for application in connection with hazardous areas
EC-Type Examination CertificateTÜV 99 ATEX 1449 X , for additional certificates see
Group, category, type of protectionEx-Hexagon II (1) G [Ex ia] IIC
Ex-Hexagon II (1) D [Ex iaD]
Directive conformity
Directive 94/9/ECEN 60079-0:2012, EN 60079-11:2012, EN 60079-26:2007
DesignationTerminal Base for 1 Zener Barrier: SB9101
Termination Board for 6 Zener Barriers: SB9106
Termination Board for 10 Zener Barriers: SB9100
grounding rail for 20 units: SB9220
grounding rail for 10 units: SB9221
grounding rail for 6 units: SB9222

Documents: SB4420

Instruction manualsSprogFil typeFil størrelse
Operating instructions Zener Barriers SB-SystemENGPDF375 KB
Betriebsanleitung Zenerbarrieren SB-SystemGERPDF377 KB


Prolist Fil typeFil størrelse
Prolist device specification / Prolist GerätespezifikationXML32 KB