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Siemens Cerberus PRO OH720 Manual

Automatic fire detectors
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Cerberus™ PRO
OH720, OP720, HI720, HI722
Automatic fire detectors
A6V10202198_m_en_--
2018-06-15
For the automatically addressable detector bus C-NET
The ideal fire detector for every application
Signal processing with detection algorithms
Address automatically issued during commissioning
Communication via C-NET (addressed individually)
Building Technologies
Control Products and Systems

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  Summary of Contents for Siemens Cerberus PRO OH720

  • Page 1 Cerberus™ PRO OH720, OP720, HI720, HI722 Automatic fire detectors For the automatically addressable detector bus C-NET The ideal fire detector for every application Signal processing with detection algorithms Address automatically issued during commissioning Communication via C-NET (addressed individually) A6V10202198_m_en_-- Building Technologies 2018-06-15 Control Products and Systems...
  • Page 2 Properties Features Resistant to environmental and interfering influences such as dust, fibers, insects, moisture, extreme temperatures, electromagnetic interference, corrosive vapors, vibration Shock resistant, protection against sabotage Protected electronics, high-quality components Integrated line separator: The defective part on the detector line is located by the fire control panel and isolated between two C-NET devices.
  • Page 3 OP720 smoke detector Smoke detector consisting of: Point detector Detector dust cap to protect the point detector during the construction phase Function: Functions according to the scattered light principle with one sensor, optical forward scattering Opto-electronic measuring chamber which obstructs disruptive extraneous light but provides excellent detection of smoke particles Selectable detection behavior thanks to two parameter sets –...
  • Page 4 Type Overview Type Designation Order number Weight [kg] OH720 Multi-sensor fire detector S54310-F2-A1 0.144 OP720 Smoke detector S54310-F1-A1 0.094 HI720 Heat detector (static and differential) S54310-F4-A1 0.130 HI722 Heat detector (static only) S54310-F3-A1 0.130 DB721 Detector base with loop contact S54319-F11-A1 0.052 DB722...
  • Page 5 Accessories Detector base DB721 Function: Universal base for all point detectors of the Cerberus™ PRO FD720 series Use: For recess-mounted supply lines For surface-mounted supply lines with cables up to max. Ø 8 mm The detector base DB721 has a loop contact. When using the DB721, the detector line is also not interrupted when there is no point detector mounted in the detector base.
  • Page 6 Detector locking device LP720 For protection against theft of the point detector Set screw M3 x 12 mm prevents the point detector being unscrewed from the detector base Point detector can only be removed with the appropriate Allen key Base attachment BA720 Function: For routing surface-mounted ducts (max.
  • Page 7 Detector heating unit FDBH291 For operating point detectors in critical ambient conditions during icy conditions or when there is a danger of moisture condensation. Examples of application: Cold stores, attics, loading ramps, cheese cellars Optimum function is only guaranteed in conjunction with base attachment wet BA721.
  • Page 8 Notes Installation Universal detector base with two break-out points for surface-mounted cable entry at the side. Max. cable diameter: 8 mm. Extra-long mounting slits allow existing drill holes from other systems to be reused. Hole spacing 40…90 mm Screw terminals for conductors up to 2.5 mm² Space for auxiliary terminals: –...
  • Page 9 Technical data OH720 OP720 HI720 / HI722 Operating voltage DC 12…33 V DC 12…33 V DC 12…33 V Operating current (quiescent) ~230 µA ~220 µA ~200 µA Max. number of external alarm indicators that can be connected Operating temperature -10...+55 °C -10...+55 °C -10...+55 °C Storage temperature...
  • Page 10 The declared performance and conformity can be seen in the Declaration of Performance (DoP) and the EU Declaration of Conformity (DoC), which is obtainable via the Customer Support center: Tel. +49 89 9221-8000 or https://siemens.com/bt/download DoP No.: 0786-CPR-20711; DoC No.: CED-OH720 Siemens Schweiz AG;...
  • Page 11 Dimensional drawings OH720 OP720 HI720, HI722 OH720 with base OP720 with base HI720, HI722 with base Building Technologies A6V10202198_m_en_-- Fire Safety 2018-06-15...
  • Page 12 A6V10406006 Installation Base attachment wet BA721, Detector designation plate DBZ1193A, Protective cage DBZ1194, EMC-protective cage FDBZ294 Issued by © Siemens Switzerland Ltd, 2008 Siemens Switzerland Ltd Technical specifications and availability subject to change without notice. Building Technologies Division International Headquarters...