background image

0710182 

02-29-08 

Section 75 

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time. 
MURPHY and the Murphy logo, are registered and/or common law trademarks of Murphy Industries, Inc.  This document, including textual matter and 
illustrations, is copyright protected by Murphy Industries, Inc., with all rights reserved. (c) 2007 Murphy Industries, Inc. 
 

Battery Chargers – Sentry and Guardian Models 

 

Features 

  High-quality constructed stainless steel cases, 

suitable for wall mounting 

  Auto boost operation provides increased 

output voltage when batteries are below a 
preset point 

  Remote temperature compensation provides 

control of output voltage based on temperature 

  Current limiting will only output the rated 

current of the charger 

 
The Sentry and Guardian battery chargers provide automatic, current limited and voltage controlled 
charging to vented lead acid batteries.  They may be used in a wise range of industrial charging 
applications, including standby engines, pumps and generators. 

Each unit consists of a transformer, rectifier and thyristor control circuit.  The control circuit ensures that 
the charger maintains a battery voltage at the pre-calibrated float level, while supplying any additional 
load current up to the specified maximum. 

 

Sentry Model 

 

CE and UL approvals 

 

Float Charging 5A at 12v 

 

Auto boost operation 

 

Electronic self-resetting output fuse protection 

 Temperature 

compensation 

 

Charge fail relay output 

 Stainless 

steel 

enclosure

 

 
 
 

 

 

Model W  D  H 

Weight

BCES-12-5 
 

11.1”  

(281mm) 

4.6” 

(115mm) 

5.5” 

(140mm) 

11.9 lbs

5.6Kg 

 

 

Guardian Model 

 

CE and UL approvals 

 

Heavy duty float charging:  10A at 12/24 VDC,  
20A at 24 VDC 

 

Short circuit and reverse polarity protection 

 

Lead acid calibrations 

 

Auto boost operation 

 

Charge fail relay output 

 

Under volts and over volts alarms 

 Temperature 

compensation 

 

NFPA 110 alarms 

 

Model W  D  H 

Weight

BCEG-12-10 
BCEG-24-10 

10.83”  

(275mm) 

4.92” 

(125mm) 

11” 

(280mm) 

22 lbs

10.0Kg 

BCEG-24-20 13.9” 

(335mm) 

5.71” 

(145mm) 

12.20” 

(310mm) 

38.5 lbs

17.5Kg 

 

Reviews: