LST Smoke Alarm NTM2402 1 User Manual

Power Supply Module  
NTM2402-1  
• Uninterrupted power supply for  
devices with 24VDC, max. 2.3A  
• Current-limited, short-circuit-  
protected output  
• Monitoring of battery charging and  
internal resistance of the batteries  
• Installation into wall-mount cabinet or  
19“ housing  
• Status display at the housing front  
• Complies with EN 54-4:2006  
Description  
The Power Supply Module NTM2402-1 serves for the The battery monitoring according to EN 54-4:2006 in-  
safe supply of devices, which need a nominal voltage of cludes the periodical measurement of the battery volta-  
24VDC. The typical fields of application include fire de- ge under load and the internal resistance of the battery.  
tection systems and extinguishing controls or any other The integrated earth leakage monitoring of the module  
applications requiring a safe power supply.  
The output voltage of the integrated switched-mode  
can be deactivated for special applications.  
power supply is current-limited and short-circuit-protec- The module is designed for installation into a power sup-  
ted.  
ply housing. For that purpose, two different housings  
are available. At the front of the housing, seven light  
The optional stand-by batteries guarantee an uninterrup- emitting diodes indicate the operation as well as pos-  
ted power supply in the event of a mains power fault. sible causes of faults.  
At a typical charging time of 24 hours, batteries with a By means of the integrated test function, a functional  
maximum capacity of 60Ah can be charged. The inte- check can be performed and the present value of the  
grated protection against total discharge and the tem- internal resistance of the battery can be read out. With  
perature compensated battery charging are the basis that, the maintenance of power unit and batteries is es-  
for a long battery life.  
pecially easy and timesaving.  
Specifications  
Operating voltage  
Output voltage  
Output current  
Ambient temperature  
Relative humidity  
Dimensions L × W × D  
Weight  
230V +10/-20%, 47 – 63Hz  
typ. 27.6VDC  
max. 2.3A  
-5°C to +50°C  
max. 95% (no condensation)  
230 × 150 × 52 (mm)  
0.5kg  
Approvals  
VdS G208124  
0786-CPD-20528  
0786–CPD–20528  
Order number  
Order name  
317020  
Power Supply Module NTM2402-1  
Building Safety. Building Security.  
A
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