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Tactical 24VDC, 3A Dual Channel Switchmode Supply With Battery Back-Up, AC Fail & Low Battery Outputs - Module Only. Total Output 3.7A. Temperature Rating 0-45'C Above Ambient No Derating.


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The TPS24-3DC is a state-of-the-art switchmode power supply featuring high performance extremely low noise operation, TPS24-3DC provides 24.1Vdc at 3A continuous output with an additional 700mA at 27.6Vdc to charge SLA (Sealed Lead Acid) standby batteries. 

In the event of mains failure, standby battery voltage is clamped to 24Vdc and instantaneously powers the load – particularly useful for powering voltage sensitive devices such as long range proximity card readers and other “true 24Vdc” equipment.

When the mains voltage is restored, batteries are disconnected from the load and recharging commences automatically.

Output short-circuit and overload protection are provided – removal of the fault / short circuit condition  will return the power supply to normal operation ( Auto-Reset ).

The advanced design of the TPS24-3DC provides outstanding performance in the field, whilst maintaining significantly lower operating temperatures.

A removable 10 way connector provides outputs for DC Load, Battery Charger, Mains Fail Relay & Low Voltage / Battery Fail Relay Output.

Equipped with an AC fail relay and Green LED indicator which changes state upon loss of 240V AC mains power, the low battery relay and Red LED indicator are only functional during a mains power failure and will operate when the battery voltage reaches 10.5V. 

Input Voltage240Vac (+6% / -10%) 50 Hz
Input Current800mA @ Full Load
Output Voltage24.1Vdc
Output Channels1
Output per Channel3A
Output Ripple<50 mVp-p @ full load
Battery Charger27.6Vdc @ 700mA
AC Fault RelayC-NC SPST contacts rating 1A 30Vdc
AC On IndicatorGreen LED Illuminates Mains ok
Low Battery Fault RelayC-NC SPST contacts rating 1A 30Vdc
Low Battery Fault IndicatorRed LED Illuminates on fault
Working Temperature0 – 45°C “Without De-rating”
Efficiency83% at rated output
Dimensions275L x 145W x 83H mm
Weight<2Kg approx
EMC StandardsAS/NZS CISPR 11:2004 (Class B)
Safety StandardsAS/NZS 60950.1:2015
Certificate of ApprovalSAA-200063
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