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Comitronic BTI SSR Series

Comitronic-BTI FURTIF 4SSR24BX Polyamide Non contact coded safety switches - Stand alone operation


  • Coded ACOTOM®
  • Easily replaces mechanical safety swicthes
  • High switching capacity
  • LED status display of the correct code recognition
  • 4SSR24BX and 5SSR24BXUS: bicolor red/green LED
  • 5SSR24BX: monocolor LED


Switching distance Sn (closing) : 7mm
Switching distance Sn (opening) : 10mm
Hysteresis/Misalignment : +2mm / ±10mm
Power supply : 24V AC/DC –15% / +10%, 50/60Hz
Current consumption : 45mA/DC, 50mA/AC
Safety outputs : outputs 250V/2A 2NO (4SSR24V and 5SSR24BX and 5SSR24BXUS) 1NO/NC (3SSR24V)
Auxiliary outpu t: 1 PNP/NC 250mA (5SSR24BX)
Coding principle : ACOTOM®
Temperature operation : -20°C…+60°C
Max. switching frequency : 2Hz
Resistance to vibration : 10g / 11ms
Shock stress : 10…55Hz, 1.5mm
Protection class : IP67
Mechanical life expectancy : 50.000.000 operations
MTTFd/DC : 50 years / 90
Housing: STAR2E, yellow
Connection: Cable 8-pin., 3m/6m/12m, or M12 pigtail 8-pin (on 5SSR24BX)
Standards : Electromagnetic immunity : EN60947-5-1, EN954-1, EN13849-1 Acc. to IEC 61000-6-2, acc. to IEC 61000-
Weight Emitter/Receiver : 70g / 205g
Safety classification : Acc. to EN ISO 13849-1 : switch up to PLc cat.1 Serie wiring possible with 30 switches on a safety relay, up to PL3c (PL4c if only one)
Certification : CE

The 4SSR24BX is a coded electronic autonomous sensor using our process ACOTOM allowing to detect the opening of the mobile protectors on dangerous machines. Housed in two polycarbonate cases (transmitter and receiver), it provides two NO contacts free of potential.

Additional Information

Manufacturer Comitronic - BTI
Product Name / Options Price (ex VAT)
Comitronic-BTI FURTIF 4SSR24BX with 3m Cable - 2NO Call for Prices

Comitronic-BTI FURTIF 4SSR24BX with 6m Cable - 2NO Call for Prices

Comitronic-BTI FURTIF 4SSR24BX with 12m Cable - 2NO Call for Prices