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DK7338.121 Rittal DET-AC III MASTER FIRE DETECTION AND EXTINGUISHING SYSTEM
Rittal DK7338.121 DET-AC III Master compact 1 U 19 inch fire detection and automatic extinguishing system with smoke extraction for closed server racks.
£5,998.52
Why Choose the Rittal DK7338.121 DET-AC III Master Fire Detection and Extinguishing System?
The Rittal DK7338.121 DET-AC III Master is a compact and advanced fire detection and active extinguishing system designed to protect closed server racks, security safes and critical IT enclosure systems. Combining early smoke detection, automatic extinguishing and active smoke extraction in a single 19" rack module, it provides reliable protection for sensitive electronic equipment.
As part of the Rittal CMC III monitoring and enclosure protection ecosystem, the DET-AC III Master provides intelligent integration options including CAN bus communication, alarm relay outputs and connection capabilities for external devices. Its compact 1 U design allows installation directly into standard 482.6 mm (19") rack levels while saving valuable enclosure space.
The system uses Novec™ 1230 / FK-5-1-12 extinguishing agent, which is non-conductive and suitable for protecting IT components. With a maximum protected volume of 2.8 m³, the DK7338.121 is designed for use in closed, non-accessible server enclosure systems where early fire response is essential.
Key Advantages
- Compact fire detection and automatic extinguishing system for server racks and enclosure systems.
- Early fire detection through integrated smoke extraction and optical smoke sensors.
- Automatic extinguishing activation following a main alarm condition.
- 1 U 19" rack mounting design for space-efficient installation.
- Novec™ 1230 / FK-5-1-12 extinguishing agent suitable for sensitive electronic equipment.
- Integration with Rittal CMC III monitoring systems via CAN bus interface.
Key Features
- Rittal DET-AC III Master fire detection and extinguishing system.
- 482.6 mm (19") rack installation.
- 1 U height format.
- Integrated active smoke extraction system.
- Automatic extinguishing using pressurised extinguishing agent release.
- Novec™ 1230 / FK-5-1-12 extinguishing agent.
- CAN bus interface for CMC III monitoring integration.
- Floating relay outputs for pre-alarm, main alarm and collective fault.
- USB interface for service and configuration functions.
Advanced Fire Protection for Critical IT Enclosures
The Rittal DET-AC III Master provides a complete protection solution by continuously monitoring air extracted from the protected enclosure. Integrated smoke sensors detect developing fire conditions at an early stage, allowing alarms and automatic extinguishing processes to be initiated before major damage occurs.
Designed for critical infrastructure environments, the system protects valuable electronic equipment without using electrically conductive extinguishing materials. Its compact rack-mounted format makes it ideal for professional server cabinets and secure enclosure applications.
Typical Applications
- Closed server racks and IT cabinets.
- Industrial automation enclosure protection.
- Security safes containing electronic equipment.
- Network infrastructure cabinets.
- Data centre rack protection systems.
- Critical control and communication enclosures.
Technical Specifications
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| Material | Steel | |
|---|---|---|
| Manufacturer | Rittal | |
| Series | DET-AC III Master | |
| Model | DK7338.121 | |
| Alternative part number | 7338121 | |
| Product type | Fire alarm and active extinguishing system | |
| Mounting format | 19" rack mounting | |
| Height | 1 U / 44 mm | |
| Width | 482.6 mm | |
| Depth | 660 mm | |
| Rated operating voltage | 100–240 V AC, 1-phase, 50/60 Hz | |
| Emergency power operation | approx. 4 h | |
| Protection rating | IP30 | |
| Housing material | Sheet steel | |
| Housing colour | RAL 7035 | |
| Front colour | RAL 9005 | |
| Extinguishing agent | Novec™ 1230 / FK-5-1-12 | |
| Extinguishing agent fill volume | 1.8 l | |
| Tank volume | 2 l | |
| Tank material | Aluminium | |
| Maximum protected volume | 2.8 m³ | |
| Operating temperature | +10 °C to +40 °C | |
| Relative humidity | up to 96%, non-condensing | |
| Weight | approx. 21 kg |
Frequently Asked Questions
What is the Rittal DK7338.121 DET-AC III Master used for?
The Rittal DK7338.121 is used for early fire detection and automatic extinguishing protection in closed server racks, security safes and critical enclosure systems.
How much rack space does the DET-AC III Master require?
The system requires only 1 U of standard 19" rack mounting space.
What extinguishing agent is used in the DK7338.121?
The system uses Novec™ 1230 / FK-5-1-12 extinguishing agent, which is non-conductive and suitable for electronic equipment protection.
What enclosure volume can the DET-AC III Master protect?
The DK7338.121 is designed for closed enclosure systems with a maximum protected volume of 2.8 m³.
Can the DK7338.121 connect to Rittal CMC III systems?
Yes, the system includes a CAN bus interface for integration with Rittal CMC III monitoring systems.
Trusted by IT and Industrial Protection Specialists Worldwide
Rittal DET-AC III fire detection and extinguishing systems provide reliable protection for critical electronic infrastructure by combining early warning, automatic fire suppression and intelligent enclosure monitoring.
