Hochiki Conventional Shunt Diode Safety Barrier (Z787)
SKU
Z787
£122.65
£102.21
Hochiki Conventional Shunt Diode Safety Barrier (Z787)
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Product Details for Hochiki Conventional Shunt Diode Safety Barrier (Z787)
The Hochiki Z787 is an intrinsically safe, zone-powered, Zener-diode barrier for use in conventional fire detection systems for protection within hazardous areas.
Each Zone contains two stages of pulse-tested Zener or forward-connected diodes and an 'infallible' terminating resistor. In the event of an electrical fault in the safe area, the diodes limit the voltage that can reach the hazardous area and the resistor limits the current. A fuse protects the diodes, and the two stages of voltage limitation ensure continued safety if either stage should fail. No active output-current limiting circuits are employed.
The unit is certified 'ia' for all zones and 'IIC' for all explosive atmospheres.
Key Features of the Z787 |
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> Simple installation onto standard DIN railing
> Removable colour-coded terminals for easy connection > Can accommodate conductors up to 2.5 mm > Supports up to two zones of I.S. products |
| Brand | Hochiki |
|---|---|
| Manufacturer Part No. | Z787 |
| Product Series | Hochiki Intrinsically Safe |
| Primary Power Source | 24V DC |
| System Type | Conventional |
| Warranty | 3 Years |
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Product Specification for Hochiki Conventional Shunt Diode Safety Barrier (Z787)
| Description | Hochiki Shunt Diode Safety Barrier |
| Product Code | Z787 |
| Usage: | In conventional fire detection systems for protection within hazardous areas.n the event of an electrical fault in the safe area, the diodes limit the voltage that can reach the hazardous area and the resistor limits the current. A fuse protects the diodes, and the two stages of voltage limitation ensure continued safety if either stage should fail. No active output-current limiting circuits are employed |
| Certification: | The unit is certified 'ia' for all zones and 'IIC' for all explosive atmospheres |
| Device type: | Barriers |
| Lens colour: | No light |
| Tone specifiable: | No |
| Colour: | Green |
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