Rittal 7338121 Fire Alarm & Extinguisher System - Novec 1230
Part Number: 7338121
Manufacturer
Rittal
Part number
7338121
Category
Alt Part Number
DK 7338.121
Quick Summary
Rittal 7338121 Fire Alarm & Extinguisher System delivers integrated fire protection for closed server racks and security safes. Engineers often grapple with bulky, costly standalone systems that complicate maintenance and limit enclosure density. The DET-AC III Master combines early fire detection with automatic extinguishing using Novec 1230 and supports 100–240 V operation with a practical 4 h uninterruptible runtime, simplifying installation in data centers and secure facilities. Designed to streamline procurement and installation, it aligns with European safety expectations and procurement standards, while delivering tangible business value through reduced footprint, faster response, and lower total cost of ownership. This solution complements data-center safety programs and secure cabinet protection, making it easier to meet compliance and operational goals.
Product Information
Extended Description
7338121 Rittal: DET-AC III Master, fire alarm and extinguisher system, active smoke extraction system, early fire detection, automatic extinguishing.
Article number
DK 7338.121
Product description
The active extinguisher system includes the smoke extraction system and the extinguisher unit. The smoke extraction system is identical to the smoke extraction system in the EFD III. The extinguishing process begins automatically when a main alarm is activated. For the extinguishing process, the tank is pressurised via a propellant cartridge. The extinguisher gas Novec™ 1230 evaporates at the extinguisher nozzle and is distributed in the server enclosure.
Benefits
Early fire detection
Technical specifications
Extinguisher is emitted via a propellant cartridge, with integral electrical activation unit
Material
Sheet steel
Colour
Enclosure: RAL 7035 | Front: RAL 9005
Extinguisher gas
Type: Novec™ 1230 | Fill volume: 1.8 l
Tank
Material: Aluminium | Volume: 2 l
Interfaces
4 x/3 x relay outputs for alarms and faults (terminals/RJ12 jacks)
Uninterruptible mains electricity operation
approx. 4 h
Note
This system is designed solely for use in closed, non-accessible enclosure systems with a maximum volume of 2.8 m³.
Display
Plain-language display with 6 LEDs
Sensors
Optical smoke detector (sensitivity: approx. 3.5%/m light obscuration)
Dimensions
Width: 482.6 mm | Height: 44 mm | Depth: 660 mm
Operating temperature range
10 °C...40 °C
Storage temperature range
-20 °C...65 °C
Storage temperature range of batteries
-15 °C...40 °C
Relative humidity (non-condensing)
96 %
Rated operating voltage
100 V - 240 V, 1~, 50 Hz/60 Hz
Air flow monitoring
approx. ±10% of total airflow
Packs of
1 pc(s).
Weight/pack
21.5 kg
PCF per pack (cradle-to-gate)
81.9 kg CO2 eq (Cat B)
Note on PCF category
Category B: PCF value (cradle-to-gate) based on the product weight, approximately calculated and self-declared
Customs tariff number
84241000
EAN
4028177699311
ETIM 7.0
EC002685
ECLASS 8.0
40040104
Product description
DET-AC III Master, fire alarm and extinguisher system, active smoke extraction system, early fire detection, automatic extinguishing.
Feature → Business Impact → Application: Integrated DET-AC III Master with active smoke extraction and automatic extinguishing reduces the time to mitigation and minimizes potential damage in secured enclosures; this translates to lower downtime and predictable recovery in data centers and bank-grade server rooms. Application: data centers, secure safes, closed server racks. Feature → eco-friendly extinguishing with Novec 1230 gas (1.8 L fill; 2 L tank) provides effective protection with low environmental impact; result is regulatory compliance and safer handling of extinguishing agents during maintenance. Application: high-density IT cabinets and secure enclosures. Feature → four relay outputs plus options for alarms and faults enables direct signaling to BMS or monitoring systems; impact is simpler integration, faster alarms, and improved incident management. Application: OEM racks and facility management. Feature → robust sheet steel enclosure with clear status display (6 LEDs) ensures durable protection and quick diagnostics; impact is reduced maintenance time and higher uptime. Application: field service and onsite protection in server halls. Feature → compact footprint (width 482.6 mm; depth 660 mm; height 44 mm) fits standard rack zones and tight spaces; impact is easier installation and lower retrofit costs. Application: data-center cabinets and wall-mounted enclosures. Feature → designed for closed non-accessible enclosures with max volume 2.8 m³; impact is ensured containment and optimized extinguishing agent distribution; application: secure vaults and protected server zones. Feature → operating range 100–240 V 1∼ 50/60 Hz with 4 h of uninterruptible operation provides resilience during power interruptions; impact is continuous protection during outages. Application: critical IT infrastructure. Feature → comprehensive documentation and multi-language instructions support rapid commissioning; impact is faster deployment and reduced risk during handover. Application: IT rooms, data centers, and secure facilities.
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FAQs
Installation is designed for compact integration into closed server racks or security safes with a maximum enclosure volume of 2.8 m³. The unit provides 4 x/3 x relay outputs for alarm and fault signaling, supports 100–240 V mains supply, and uses a 2 L tank with a 1.8 L Novec 1230 charge. Ensure mounting space matches the 482.6 mm width and 660 mm depth footprint and that the enclosure permits passive venting for smoke extraction.
Novec 1230 is a low-GWP clean agent selected for rapid heat absorption and controlled dispersion through the extinguisher nozzle. In this system, the gas from a pressurized cartridge provides automatic extinguishing when the main alarm is triggered, while the 1.8 L fill and 2 L tank are sized for the enclosure volume up to 2.8 m³, aligning with safe, compliant IT protection.
Yes. The DET-AC III Master offers 4 x/3 x relay outputs for alarms and faults and interfaces suitable for building management and alarm integration. Its standardized dimensions and material (sheet steel) support installation in common rack footprints, while the 6 LED display simplifies field diagnostics during maintenance.
The unit is designed for European use with safety-focused features such as early fire detection and automatic extinguishing; it also aligns with common industry classifications (ETIM EC002685, ECLASS 8.0 40040104) to support reliable data-modeling for procurement and integration in IT environments. Please verify site-specific regulatory requirements for CE or other certifications applicable in your region.
The system provides uninterruptible mains operation for approximately 4 hours, ensuring continued protection during short power outages. It operates on 100–240 V single-phase input at 50/60 Hz, making it compatible with most data center power configurations. This capability helps maintain enclosure security during maintenance windows or transient outages.