SB3 Safety barrier

SB3 Safety barrier

  • Suitable for applications with Ex detectors
  • Input/Output Module included
  • Impact-proof and scratch-resistant synthetic material
  • Large opening for reuse of existing boreholes
  • Screwless connection terminals

The SB3 Safety Barrier limits the electrical energy between non-inherently safe and inherently safe circuits and thus prevents the ignition of gas mixtures by electrical sparks. The Safety Barrier must always be installed outside the explosive area. The DCA1192 Input/Output Module is the galvanical isolation between the fire panel and SB3 Safety Barrier.

   
Max. voltage 28 V DC
Max. permissible current 100 mA
Max. output 0.7 W
Wire gauge 0.2 mm2. . . 2.5 mm2
Cable bushings PG16 (6x)
Dimensions (W x H x D) 135 x 135 x 65 mm
Housing material Plastic, PC
Housing color White, RAL 9010
Weight Approx. 450 g
Protection class as per EN 60529 IP 56
Permissible operating temperature -25 °C . . . +70 °C
Permissible storage temperature -30 °C . . . +75 °C
Ignition protection according to EN 50014/20 Inherent safety EEx ia IIC / IIB
External supply  
Operating voltage 18 V DC . . . 32 V DC
Current consumption Max. 5 mA
Line resistance 50 Ω . . . 250 Ω
Line termination EOL22(Ex)
Line termination  
Operating voltage 18 V DC . . . 22 V DC
Standby current ≤45 mA
Operating current ≤150 mA
Line resistance 50 Ω . . . 250 Ω
Line termination EOL22(Ex)
Wire gauge 0.2 mm2. . . 2.5 mm2
Cable bushings PG16 (6x)
Housing material Plastic, PC
Housing color White, RAL 9010
Dimensions (W x H x D) 135 x 135 x 65 mm
Weight Approx. 425 g
Protection class as per EN 60529 IP 56
Permissible operating temperature -25 °C . . . +70 °C
Permissible storage temperature -30 °C . . . +75 °C
Permissible relative humidity ≤100% at T≤34 °C
   
Output voltage (V) ≤ 28
Output current (mA) ≤ 100
Output power (mW) ≤ 700
External inductivity (mH) ≤ 1.6
External capacity (nF) ≤ 83