Saving lives and securing property is our business
The history of LST dates back to 1924 when it was founded by the inventor of the roentgen-dosimeter; ever since it has developed a variety of electronic devices. Entry in the security technology market occurred in the year 1965 when the first burglar alarm control panel generation "AZ1" was introduced. A turnover of about one million Austrian Schillings was made then. The sixth generation of fire detection control panels "BC216" was introduced by LST in the year 2000; at present, 125 employees achieve a turnover of 18 million Euro.
LST is the leading Austrian manufacturer of professional fire alarm and burglar alarm technique. During its 80 years of successful history the family business traditionally ever combined highest quality and innovative ideas with every product generation developed and manufactured by LST.
Every single LST product offers you safety, security and quality.
Steady exchange of information with international test and approval authorities provides you products tested to meet the highest requirements.
New 24VDC power supply units according to EN 54-4:2006
The Power Supply Units Series NT24 serve for a safe and uninterrupted power supply which is required, for example, in fire detection systems and extinguishing systems.
For various applications, power supply modules with a maximum output current of 2.3A or 8.4A, as well as several housing versions for wall mounting and for installation into 19" switch cabinets are available.
Due to the sophisticated battery monitoring and the evaluation of different causes of faults, the power supply units fully comply with the standard EN 54-4:2006.
Each Power Supply Unit Series NT24 consists of a power supply module, a power supply housing, the optional stand-by batteries and optional auxiliary modules.
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Two versions of the integrated switched-mode power supply are available: the Power Supply Module NTM2402-1 with a maximum output current of 2.3A and the Power Supply Module NTM2408-1 with a maximum output current of 8.4A.
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The Power Supply Housings NTG24-1 and NTG24-2 for wall mounting can accommodate the power supply module as well as the batteries and optional auxiliary modules.
The 19" Power Supply Front Panel NTG24-1CE is designed for mounting into switch cabinets or 19” racks. The batteries are placed in the switch cabinet.
The output of the power supply modules is short-circuit-protected and current-limited. In case of a mains power fault, the optional stand-by batteries ensure the uninterrupted power supply.
The temperature compensated battery charging and the protection against total discharge form the basis for a long battery life.
The battery monitoring according to EN 54-4:2006 comprises the periodical check of the battery voltage under load and the measurement of the internal resistance of the battery. The integrated earth leakage monitoring of the module can be deactivated for special applications.
Possible faults are individually indicated by the display and operating field at the front of the housing. The integrated buzzer can be silenced by means of a button.
