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Siemens OOH740-A9-EX Cerberus PRO Multi-Sensor Fire Detector for Ex Areas
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Siemens OOH740-A9-EX Cerberus PRO Multi-Sensor Fire Detector for Ex Areas

Cerberus PROMulti-sensorEx iaC-NET-ExDNV/MED

A multi-sensor fire detector for potentially explosive areas, addressed individually on a C-NET-Ex line or used on a collective Ex line.

  • ASAtechnology signal processing with event-controlled detection behaviour
  • Multiple protocol: C-NET-Ex or collective Ex
  • Redundant sensor system; address issued automatically during commissioning
  • Suitable for wind speeds of 1 to 20 m/s
  • DC 13 to 28 V; -25 to 70 °C; IP43, IP44 with sealing kit; Ex ia IIC T4 Ga
  • Siemens lists EN 54-5, EN 54-7, DNV, MED, VdS and UKCA

Standards and approvals: EN 54-5, EN 54-7, DNV, MED, VdS, UKCA

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Download the official Siemens catalogue (PDF, 1.8 MB)

Specifications

Specifications
SpecificationOOH740-A9-EX
StandardEN 54-5 , EN 54-7 , IEC/EN 60079-0 , IEC/EN 60079-11
Operating voltageDC 13…28 V
Protection categoryIP43; IP44 with sealing kit
Relative humidity≤95 % rel. (short-term moisture condensation permitted)
Storage temperature-30…+75 °C
Operating temperature-25…70 °C
Quiescent current200...280 μA
Ex-classificationIECEx scheme: Ex ia IIC T4 Ga, Ta = -35…70 °C
Communication protocolC-NET-Ex , Collective Ex
System compatibilityC-NET-Ex > FS720
ColorPure white, ~RAL 9010

Specifications as published by Siemens. Please confirm the exact model with us before ordering.

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