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.

NTM2402-1_DBL_LST_EN_0851.PDF • PAGE 1

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