This compact rack extinguisher system DET-AC Plus (Detection Active Plus) is designed for use in the Rittal IT rack, fitted in the 482.6 mm (19″) level. The system is equipped with a 2-stage smoke analysis extractor system. A bayed rack may optionally be included in the monitoring and extinguisher system. The system is also suitable for use in racks with bayed air/water heat exchangers (Liquid Cooling Package, LCP). The ecofriendly, non-toxic Novec
1) 1230 is used as the extinguisher medium, which means that this extinguisher system is suitable for universal use. Sensitive hardware such as servers, storage and switches are not impaired by the extinguisher medium. Thanks to the extremely sensitive detection of smoke, even in racks with a high level of climate control (airflow speed), this ensures that there is plenty of time to forward an alarm message either acoustically, optically via the LC display on the enclosure front, or by connecting the integral floating contacts to the building management system or fire alarm centre and to the Rittal monitoring system CMC-TC. When opening an enclosure door, activation of the extinguisher system is blocked by the two access sensors (door monitoring). In order to ensure that proper functioning of the system is maintained even in the event of a power failure, an emergency back-up power supply with a stored energy time of 4 hours is integrated into the system.
The system can also be supplied purely as an early fire detection system without the extinguisher medium tank.
Early smoke detection:
Thanks to the two highly sensitive optical sensors, minute particles of smoke may be detected even in the early stages of a fire (pyrolysis phase) via the active smoke extraction. If the 1st alarm detects smoke aerosols, a pre-alarm is triggered, and if the 2nd alarm likewise detects smoke, the extinguisher system is activated. This prevents major fires from developing.
Rack requirements:
As a general principle, the racks must meet protection category IP 55, i.e. with sealed doors and screw-fastened side panels. Use of an air/water heat exchanger (LCP) is supported.
Optional smoke analysis, extension for bayed racks:
The basic DET-AC Plus system is designed for a single rack, but neighbouring enclosures may also be incorporated via an additional pipe kit, provided the total interior enclosure volume to be extinguished does not exceed 3 m3. Several extinguisher systems may also be linked together in the bayed enclosure suites, so that all systems may be activated jointly.
Automatic system deactivation (compulsory deactivation):
In conjunction with the Rittal enclosure monitoring system CMC-TC plus suitable switchable Rittal socket strips (Power System Module PSM/Power Control Unit PCU with active current measurement, display and switching options), in the event of an alarm, compulsory deactivation of the components installed in the rack may be triggered. This ensures that the servers are protected from further destruction.
The alarms (pre-alarm, main alarm) may be transmitted via any given IP networks and processed in corresponding monitoring programs. The extinguisher system is supplied complete with mounting accessories.
Technical specifications:
Protection/rack volume: 3.0 m3
Extinguisher medium: Novec
1) 1230
Weight of extinguisher medium: 3.2 kg
Power supply: 115 – 230 V AC/50 – 60 Hz
Emergency power supply (integral battery): max. 4 h
Contact rating (pre-alarm, alarm, blocking): max. 30 V DC/1 A
Sensors: 2x sensitive sensors, one each for pre-alarm/main alarm
Ambient temperature: 10 – 35°C
Display: LCD display with plain text information
Material of enclosure: sheet steel, spray-finished
Material of extinguisher tank: Aluminium
Dimensions (W x H x D): 447 x 1 U x 780 mm
1)Novec is a registered trademark of 3M.
NoteThe extinguisher system must be installed and maintained by qualified experts. Rittal is happy to offer such a service. When baying several different IT racks together, a combined enclosure interior volume of 3 m
3 must not be exceeded!
Protection categoryIP 30
Products in category "Rack extinguisher system DET-AC Plus, 1 U with integral early fire detection":
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