Power Supply Module
• 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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