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 100-5

Explosion-proof construction Intrinsic safety construction(EⅡC)

Rated voltage 24±10%

Maximum voltage of a intrinsic safety circuit 29.4

Max. Allowable voltage 25.95

Maximum current of a intrinsic safety circuit 93.8

Electric power of a intrinsic safety circuit 0.689W

Ambient temp. -2050℃

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

14. Konan Intrinsic Safety Solenoid Valves Explosion barrier SAF3-5, MTL728+

Intrinsic safety explosion barrier is an explosion-proof device with single channel, shunt-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.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.

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

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

   cost.

5.as SAF3-5 safety barrier has protection circuit, it will be not broken

   if you wired in the wrong polarity.

6.SAF3-5 safety barrier employ crimping terminal wiring method.

Model code 3-5 728+

Explosion-proof construction

Intrinsic safety construction(ExiaⅡB) Intrinsic safety construction(i2G4)

Rated voltage 24±5%-

Max. Working voltage - 25.5

Max. Allowable voltage - 26.6

Safety retention voltage /250

Rating of a fuse 50

Ambient temp. -2060℃ -1060℃

Basic circuit figure

Operating condition

1.Place the valve in non-hazardous area.

2. Parts and connections cannot be changed.

3. Use with specified solenoid valves.

 4. Allowable inductance for external connection: 10mH / Capacitance: 0.5 μF

 4. Allowable inductance for external connection: 1mH / Capacitance: 0.05 μF