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KONAN ELECTRIC CO., LTD is a Japanese leading manufacturer and supplier of Pneumatic and Hydraulic Fluid Components for factory automation and energy-saving applications.

Konan’s highly reliable and durable products have been developed with superior technologies to meet the needs and demands especially in the heavy industries such as power plants, steel mills, chemical plants, as well as many other industrial fields. Our products and services are highly used not only in Japan but over 50 countries around the world.

Explosion barrier


Explosion barrier


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


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 codeSAF100-5
Explosion-proof constructionIntrinsic safety construction(ExiaⅡC)
Rated voltageDC24V±10%
Maximum voltage of a intrinsic safety circuitDC29.4V
Max. allowable voltageDC25.95V
Maximum current of a intrinsic safety circuit93.8mA
Electric power of a intrinsic safety circuit0.689W
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


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