Shanghai Chenzhu Instrument CO., LTD.
Shanghai Chenzhu Instrument CO., LTD.
  • gs8500 ex digital intrinsic safety barrier
  • gs8500 ex digital intrinsic safety barrier 4
  • gs8500 ex digital intrinsic safety barrier 1
  • gs8500 ex digital intrinsic safety barrier 3
  • digital input barrier
  • digital input barrier 1
  • gs8500 ex digital intrinsic safety barrier
  • gs8500 ex digital intrinsic safety barrier 4
  • gs8500 ex digital intrinsic safety barrier 1
  • gs8500 ex digital intrinsic safety barrier 3
  • digital input barrier
  • digital input barrier 1

GS8500-EX Digital Intrinsic Safety Barrier

Digital input, relay output isolated barrier, transfers digital signals (dry contact or NAMUR proximity switch) from hazardous area to safe area. Each channel can be provided to select phase reversal and to enable line fault detection. And digital output isolated barrier, with 12V/45mA output to the hazardous area, is controlled by switches and logic signal in the safe area. 


This intrinsic safety equipment is suitable for driving IS devices such as solenoid valves, LED and some other low-power loads located in the hazardous area. Digital input barrier needs an independent power supply and galvanic isolation among power supply, input and output.

Advantages of GS8500-EX Digital Intrinsic Safety Barrier

  • Ultra-thin 12.5mm

  • High reliability and precision

  • Strong EMC performance

  • G3 anti-corrosion

  • Flexible power mode

Parameter of GS8500-EX Digital Intrinsic Safety Barrier


1/1: GS8512-EX.11
1/2: GS8512-EX.12
2/2: GS8512-EX/22
3/3: GS8512-EX.33
4/4:GS8114-EX
Supply Voltage20~35V DC20~35V DC
Current Consumption≤30mA(GS8512-EX.11)
≤40mA(GS8512-EX.12 / GS8512-EX.22)
≤65mA(GS8512-EX.33)
≤75mA
Open circuit voltage≈8V≈8V
Short-circuit Current≈8mA≈8mA
Input signalDry contact or NAMUR proximity switchDry contact/proximity switch
Output signalRelayRelay
Relative humidity10%~90%10%~90%
Response time≤10ms≤20ms
Ambient Temperature-20℃~+60℃-20℃~+60℃
WeightApprox. 100gApprox. 150g



1/1:GS8519-EX.11
1/2:GS8519-EX.12
2/2:GS8519-EX.22
1/2:GS8519-EX.12A
With LFD function
Supply Voltage20~35V DC20~35V DC
Current Consumption≤40mA(GS8519-EX.11)
≤60mA(GS8519-EX.12 / GS8519-EX.22)
≤40mA
Open circuit voltage≈8V≈8V
Short-circuit Current≈8mA≈8mA
Input signalDry contact/proximity switchDry contact/proximity switch
Output signalTransistorRelay
Digital Output4.5V≤VH≤12V,VL≤0.5V
Drive current≤10mA, Load resistance≥1kΩ
4.5V≤VH≤12V,VL≤0.5V
Drive current≤10mA, Load resistance≥1kΩ
Relative humidity10%~90%10%~90%
Ambient Temperature-20℃~+60℃-20℃~+60℃
WeightApprox. 150gApprox. 100g




1/2:GS8515-EX
Supply Voltage20~35V DC
Current Consumption≤50mA
Control InputON/OFF control(9,10)
Upper limit/lower limit control(9,10,11)
Input signalDry contact/proximity switch
Output signalRelay
Input signalDry contact/proximity switch
Response time≤20ms
Ambient Temperature-20℃~+60℃
WeightApprox 150g



Dimensions of GS8500-EX Digital Input Barrier



Typical Applications of GS8500-EX Digital Intrinsic Safety Barrier


GS8500-EX Digital Intrinsic Safety Barrier   GS8500-EX Digital Intrinsic Safety Barrier

GS8500-EX Digital Intrinsic Safety Barrier   GS8500-EX Digital Intrinsic Safety Barrier

GS8500-EX Digital Intrinsic Safety Barrier   GS8500-EX Digital Intrinsic Safety Barrier

GS8500-EX Digital Intrinsic Safety Barrier

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