• DSA-DO switching output safety barrier DSA-DO switching output safety barrier

DSA-DO switching output safety barrier

Item No: DYT12168148

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DSA-DO switching output safety barrier

·  1 in 1 out, 2 in 2 out. 12V/45mA intrinsically safe output, suitable for intrinsically safe equipment such as solenoid valves and alarms that drive dangerous areas. Open circuit voltage 22~26V. Current limit is 45mA. Terminal supply or DIN rail power supply is available.

·  DSA-DO digital output safety barrier is suitable for driving the safety zone's power supply through switch control or logic level signal to drive on-site intrinsically safe equipment in the danger zone, such as solenoid valves, alarms and other intrinsic safety equipment.

·  Output intrinsically safe signal: 45mA/12V (output voltage ≥12V when output current is 45mA

·  This product requires a separate DC power supply. Power-input-output and isolation between channels.

Model /Selection Table:


    Model and code


     Basic model


   Switch output safety barrier

     Channel form


   1 in 1 out


   2 in 2 out

     Input signal


   Contact switch


   OC signal


   Level signal

     Output signal


   45mA/12V (output voltage ≥12V when output current is 45mA)


   Special order

     Power supply voltage


   Power supply (terminal) 20~32VDC


   Power supply (rail) 20~32VDC (special power supply DIN rail required)

     Service Code


   Product Service Code

   Selection example
   Example 1: DSA-DO11-CE-V1-QC9A ...... (1 input and 1 output, switch output safety barrier, safety side contact switch signal input, dangerous side intrinsically safe output 45mA/12V, terminal power supply 20~32VDC)
   Example 2: DSA-DO22-CE-V2-QC9A ...... (2 in 2 out, digital output safety barrier, safety side contact switch signal input, dangerous side intrinsically safe output 45mA/12V, rail sub-power supply 20~32VDC)
   Optional accessories 
   Dedicated power supply DIN rail: PSDR-3000 series


Technical data:








    Housing Material / Color

   PC(Polycarbonate)+PPT Material / Black Gray

    Protection level



Environmental conditions:

    Ambient temperature


    Ambient temperature (storage or operation)


    Ambient humidity (operation)

   5~95RH (no condensation)



   Contact switch input

   Input switch closed


   Input switch is disconnected


   Input current

   ≤3mA / 24V

   Switch delay


   Level signal input

   High level

   ≥ 4.5V

   Low level


   OC signal input

   Electrical capacity

   30VDC, 100mA


Output(intrinsically safe):

   Maximum output current


   Output voltage

   When the current is 45mA, the output voltage is ≥12V

   Open circuit voltage



Power supply:

  Rated supply voltage


   Power supply voltage range


  Maximum current consumption

   <70mA (1 in 1 out); <110mA (2 in 2 out)  


General parameters:

  Electrical isolation

   Input-output-power supply: 2500V AC RMS / 1 minute

   Electromagnetic compatibility (EMC)

   in accordance with IEC 61326-1 (GB/T 18268), IEC 61326-3-1

   LED status indication

   · Power on, the product model on the panel is clearly visible through the LED backlight perspective, white.
  · Yellow LED, output status indication.

   Applicable occasions

   Installed in a safe place, can be connected with intrinsically safe equipment in Zone 0, Zone 1, Zone 2; IIC, IIB, IIA; T4~T6 danger zone

   Field device suitable for connection

   Intrinsically safe equipment such as solenoid valves and alarms

   Mounting method

   Horizontal or vertical mounting, can be mounted on standard 35mm DIN rail (or dedicated busbar backplane powered DIN rail)


Wiring parameters:

   Rigid conductor cross section (min/max)


   Flexible conductor cross section (min/max)


   Minimum Conductor Cross Section (AWG))


   Maximum Conductor Cross Section (AWG) 14


   Stripping length


   Connection type

   M3 screw fastening connection

   Screw torque

   Up to0.6Nm


Explosion-proof parameters:

   Maximum safety voltage (Um)


   Maximum output voltage (Uo)


   Maximum output current (Io)


   Maximum output power (Po)


   Maximum external inductance (Lo)


   Maximum external capacitance (Co)




    CE certification

   in line with CE standards

   National Explosion-proof Electrical Product Quality Supervision and Inspection Center (CQST) certification

   [Ex ia Ga] IIC conforms to GB 3836.1, GB 3836.4, GB 3836.20

Product drawing / terminal wiring diagram:


Product Image Details

DSA-DO switching output safety barrier 1

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