ZETA Zener Barrier

 258,500.00 275,000.00 (-6%)

In stock

Key Features

  • Removable, colour-coded terminals
  • Bussed power feed to other modules
  • Relay and solid state switch modules
  • Dual channel variants - 6.3mm per channel
  • Proximity detector inputs
  • Compatible terminal numbering and safety descriptions
  • Dimensions: 105 x 90 x 12.6mm
  • Number of Channels: 1
  • Supply Voltage: 28 V dc
  • Safety Voltage Maximum: 26 V dc
  • Safety Current Resistance: 300oh
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Zener Safety Barrier for Conventional Detection Circuits

The Zeta zener barrier 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

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.

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Additional information

Dimensions 10.5 × 1.26 × 8.2 cm
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