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SB4 safety control units – Modular evaluation for SLA12 and SLA29 light barriers
Photoelectric Sensors
sensori-fotoelettrici
Pepperl+Fuchs

SB4 safety control units – Modular evaluation for SLA12 and SLA29 light barriers

SB4

Pepperl+Fuchs SB4 (SafeBox) modular safety control units for SLA12 and SLA29 light barriers: SIL 3, type 4, sensor, OSSD and emergency stop modules, relay or PNP outputs, TÜV-certified.

SIL
UL
CE
Description
Technical Specifications
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Datasheets

SB4 units (SafeBox) evaluate the signals of SLA12 and SLA29 single-beam safety light barriers and drive the machine's safety outputs. The system is modular: ready-to-use complete units or individual modules (sensor modules, OSSD/supply modules, OSSD/emergency stop modules) to be combined in SB4 housings.

Key features

  • SIL 3, type 4 self-monitoring to IEC/EN 61496-1, TÜV certification
  • 4- or 6-channel sensor modules, operating mode selectable via DIP switches
  • Relay or PNP OSSD safety outputs, start/restart interlock, relay monitoring
  • 2E modules with cat. 0 or cat. 1 stop functions and time function
  • 7-segment diagnostic display and status LEDs (complete units)
  • Screw or spring terminals, 19.2…28.8 V DC supply

Use the filters in Variants and codes to find the exact part number: every code links to the official Pepperl+Fuchs datasheet and to a quote request. For versions not listed, accessories or availability, contact us.

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# General Product type: Safety control unit Brand: Pepperl+Fuchs Compatible sensors: SLA12, SLA29 safety light barriers Configuration: Complete units · individual modules # Certifications Certifications: TÜV, UL Functional safety: SIL 3 · type 4 Area: safe (non-classified) # Electrical Supply voltage: 19.2…28.8 V DC Outputs: Relay or PNP OSSD # Mechanical Dimensions (L × W × H): 100.5 × 22.6 × 99 mm (modules) · 112.7 × 45 × 99 mm (complete units) Connection: Screw or spring terminals
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SB4 safety control units – Modular evaluation for SLA12 and SLA29 light barriers