Data Sheet for Product

Siemens Data Sheet 6192

Smart Infrastructure -Building Products usa.siemens.com/fire

Product Overview

Model OH121 from Siemens Industry ─ Fire Safety is a photo / thermal smoke

detector that contains a thermal sensor. When the sensor is utilized, an Alarm

condition will trigger when the temperature reaches 135°F ─ at this point, the

detector will also lock into Alarm condition.

The magnet-test feature allows for Model OH121 to be tested without the use of a

heat gun, providing quick testing for installers and test personnel to prove the

integrity of the wiring and proper connection to the fire alarm control panel

(FACP).

The auto-sensitivity feature for Model OH121 stems from the internal, self-

monitoring circuitry, and provides dynamic verification of sensitivity and / or

required maintenance. The auto-sensitivity feature is displayed by Siemens unique

(3) three-color LED provided locally on the detector ─ and optionally with the

various remote LED indicators.

Conventional Detection

Devices

Photo Thermal Smoke Detector

Model OH121

Architect & Engineer Specifications

 State-of-the-art, smoke-detection

chamber that yields quick response

 Incorporates one (1) state-of-the-art

chamber for rapid, uniform response

to alarm criteria (i.e. ─ heat, smoke)

 Magnet-test feature

 Automatic sensitivity test without

the need for a special tester (per

NFPA 72)

 Available optional sounder base,

providing an alert and evacuation

signal

 UL 268 Listed, ULC S529 Listed;

FM, CSFM Approved

Model TM121

Test Magnet Placement

Model OH121

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Conventional Detection Devices Photo Thermal Smoke Detector Model OH121 Architect & Engineer Specifications  State-of-the-art, smoke-detection chamber that yields quick response  Incorporates one (1) state-of-the-art chamber for rapid, uniform response to alarm criteria (i.e.
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Details for Ordering Environmental Ratings OPERATING TEMPERATURE: 32°F (0°C) ─ 100°F (38°C) 0 – 95% (non-condensing) HUMIDITY: ` AIR THERMAL ALARM TEMPERATURE: VELOCITY: 135ºF (57ºC) 0 ─ 4000 feet / minute [for open-area protection and direct, in-duct application] Electrical Ratings VOLTAGE: 16VDC – 27VDC RIPPLE: 3V (peak to peak) SUPERVISORY CURRENT: PART NUMBER PRODUCT OH121 S54372-F2-A1 Multi-Sensor Smoke Detector OP121 S54372-F1-A1 Photoelectric Smoke Detector HI121 S54372-F3-A1 The
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NOTICE – The information contained in this data-sheet document is intended only as a summary, and is subject to change without notice. The product(s) described here has/have a specific instruction sheet(s) that cover various technical, limitation and liability information. Copies of install-type, instruction sheets – as well as the General Product Warning and Limitations document, which also contains important data, are provided with the product, and are available from the Manufacturer.