Early Smoke Detection with SECURUS 90

More Safety in the Switch Cabinet

Monitoring the interior of the switch cabinet with the Smoke Switch SECURUS 90 RSS detects fire hazards at a very early stage.

Application

The Smoke Switch SECURUS 90 RSS is used to increase the operational reliability and availability of technical facilities and installations like

Industrial plants and building technology facilities
Low-tension systems
Control and automation systems
Low-voltage main distribution boards
Sub-distributions

The Monitoring Concept

The Smoke Switch SECURUS 90 RSS detects both smoldering and open fires with smoke emission.

With its highly sensitive sensors for smoke and heat it constantly measures smoke concentration and temperature in the switch cabinet.

The Smoke Switch utilizes the scattered-light principle:

Light transmitter and receptor are arranged in the measuring chamber in that way that the light of the transmitter cannot hit the receptor directly. Only light which has been diffused by airborne particles reaches the receptor.

The thermal sensor responds at a temperature of approx. 70 °C.

A potential-free relay contact opens in case of alarm, malfunction and voltage failure and transfers information on possible hazards to downstream devices, e.g. a building control system.

The alarm is self-maintaining and can only be reset by a short break of the supply voltage.

The Smoke Switch SECURUS 90 RSS can be easily snapped on a head rail TS35 in the switch cabinet.

Technical Data

• Optical smoke detection based on the scattered-light principle
• Measurement chamber monitoring
• An integrated LED displays the following operating states: „operation“, „slight contamination“, „heavy contamination“, „fault“ and „alarm“
• Contamination compensation
• Alarm is released if threshold for smoke concentration or temperature limit of approx. 70°C are exceeded
• No use of radioactive materials
• Potential-free relay contact, opens in case of alarm and fault
• Designed for use in switch cabinets with standard field sections
• Quick assembly on DIN head rails TS 35
• Boltless assembly
• Two conductors per junction possible
• Standard communication interface for Smoke Switch data bus

For a detailed description as well as for further technical data and assembly instructions,

please refer to our >>>"Datenblatt/Montageblatt Rauchschalter SECURUS 90 RSS"

(only available in German language!)