Powerbox PB251A-12CM, 13.8VDC, 16A, Mains Fail, 2A Charge

SKU:E27011

Please login or register to view pricing.


Powerbox PB251A-12CM, 13.8VDC, 16A, Mains Fail, 2A Charge The PB251A Series is a family of 13.8Vdc and 27.6Vdc 275W/330W off-line battery chargers / DC uninterruptible power supplies, which operate from 220/240Vac mains power.  When connected to a lead-acid battery, these units provide uninterrupted power to a DC load in the event of a mains failure. The PB251A contains a two step current limited float charger, battery charge current limiting, a battery low voltage disconnect, mains/charger and battery alarms, battery present detection and optional float voltage temperature compensation (option -T).  It employs high efficiency switching technology, combined with  very low output noise which makes it suitable for powering sensitive loads such as radio equipment. The PB251A is available in chassis mount (CM) and 2RU 19" rack mount (RML and B) variants.  A supplementary heat sink (option - H) is available to increase the output power or maximum ambient temperature rating of the chassis mount variant.  All models employ natural convection cooling. The rack mount (RML and B) variants incorporate an alphanumeric LCD display as standard.  These variants are also available with analogue meters (option -M)
INPUT
Input Voltage: 190 to 264Vac, or 225 to 400Vdc
Frequency: 45 to 65 Hz
Input Current: 1.4A maximum
Inrush current: 10A maximum
Line regulation: 0.2%typical
OUTPUT
Output Voltage 13.8Vdc, 27.6Vdc
Output Current 13.8Vdc: 20A 27.6Vdc: 12A
Load regulation 0.5% typical
Ripple & noise 100 MHz bandwidth 28mVp-p (13.8Vdc output) 55mVp-p (27.6Vdc output)
Efficiency > 80%

(E27011)

SKU E27011
Brand Powerbox
Unit Of Measure Each
Type Stock

More From This Category


top seller

Premium Panasonic CR123A - 3V Lithium Detector Battery
SKU: E42012

Premium Panasonic CR123A - 3V Lithium Detector Bat

Please login or register to view pricing.

top seller

CS Technologies 5 Amp Power Supply, with AC Fail and Battery Low, in Metal Box (E34015)
SKU: CS9001

CS Technologies 5 Amp Power Supply, with AC Fail a

Please login or register to view pricing.

top seller

CR123A - 3V Lithium Detector Battery (Pack of 6)
SKU: E42042

CR123A - 3V Lithium Detector Battery (Pack of 6)

Please login or register to view pricing.

top seller

PS138-V3 13.8VDC 1AMP Power Module
SKU: E28030

PS138-V3 13.8VDC 1AMP Power Module

Please login or register to view pricing.

CR2032 Lithium 3V Remote Battery
SKU: E42056

CR2032 Lithium 3V Remote Battery

Please login or register to view pricing.

12V 27A Remote Battery
SKU: 27A12V

12V 27A Remote Battery

Please login or register to view pricing.

top seller

Bosch CM797B LAN Isolater Module plus Power Supply (E43100)
SKU: CM797B

Bosch CM797B LAN Isolater Module plus Power Supply

Please login or register to view pricing.

Bosch AMC 12/24V Switchable Power Supply
SKU: E54012

Bosch AMC 12/24V Switchable Power Supply

Please login or register to view pricing.