LST NTM2402-1 specifications

0786–CPD–20528

NTM2402-1_DBL_LST_EN_0851.PDF • PAGE 1

ABuilding Safety. Building Security.

Power Supply Module

NTM2402-1

Description

The Power Supply Module NTM2402-1 serves for the

safe supply of devices, which need a nominal voltage of

24VDC. The typical ﬁ elds of application include ﬁ re de-

tection systems and extinguishing controls or any other

applications requiring a safe power supply.

The output voltage of the integrated switched-mode

power supply is current-limited and short-circuit-protec-

ted.

The optional stand-by batteries guarantee an uninterrup-

ted power supply in the event of a mains power fault.

At a typical charging time of 24 hours, batteries with a

maximum capacity of 60Ah can be charged. The inte-

grated protection against total discharge and the tem-

perature compensated battery charging are the basis

for a long battery life.

The battery monitoring according to EN 54-4:2006 in-

cludes the periodical measurement of the battery volta-

ge under load and the internal resistance of the battery.

The integrated earth leakage monitoring of the module

can be deactivated for special applications.

The module is designed for installation into a power sup-

ply housing. For that purpose, two different housings

are available. At the front of the housing, seven light

emitting diodes indicate the operation as well as pos-

sible causes of faults.

By means of the integrated test function, a functional

check can be performed and the present value of the

internal resistance of the battery can be read out. With

that, the maintenance of power unit and batteries is es-

pecially easy and timesaving.

• 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

Speciﬁ cations

Operating voltage 230V +10/-20%, 47 – 63Hz

Output voltage typ. 27.6VDC

Output current max. 2.3A

Ambient temperature -5°C to +50°C

Relative humidity max. 95% (no condensation)

Dimensions L × W × D 230 × 150 × 52 (mm)

Weight 0.5kg

Approvals VdS G208124

0786-CPD-20528

Order number 317020

Order name Power Supply Module NTM2402-1