Intrinsic safety explosion barrier is an explosion-proof device with single channel, Zener-diode DC circuit that enables interactive electric signaling without short circuit while controlling energy transmission in order to prevent ignition in explosive atmosphere.

1.Applicable to Zone 0.

2.A-class ground is not necessary since the input and output are insulated

   each other.

3.When serially connected to a transmission circuit, the barrier protects

   the circuit and components in hazardous area from being affected by

   a serious accident in the non-hazardous area.

4.Despite in the hazardous location, conventional wiring is available.

5.Intrinsical proof of operational signal is figured out easily and at lower

   cost.

6.SAF100-5 safety barrier employ crimping terminal wiring method.

7.As SAF100-5 safety barrier has protection circuit, it will be not broken

   if you wired in the wrong polarity.

8.LED indicates the condition of the input and output

Model code ＳＡＦ100-5

Explosion-proof construction Intrinsic safety construction(EｘｉａⅡC)

Rated voltage ＤＣ24Ｖ±10%

Maximum voltage of a intrinsic safety circuit ＤＣ29.4Ｖ

Max. allowable voltage ＤＣ25.95Ｖ

Maximum current of a intrinsic safety circuit 93.8ｍＡ

Electric power of a intrinsic safety circuit 0.689W

Ambient temp. -20～50℃

Basic circuit figure

Does not need A-class ground.

Operating condition

 1.Place the valve in non-hazardous area.

 2.Perform single grounding using type A ground.

 3. Parts and connections cannot be changed.

 4. Use with specified solenoid valves.

 5. Allowable inductance for external

    connection: 2mH / Capacitance: 0.05 μF