Battery Charger 50Hz
Single Phase CEMB

The battery chargers of the Cemb series are designed to recharge medium capacity traction and start leadacid batteries.

These battery chargers are the result of the fourty-year experience in the field of battery chargers, in the application of microprocessor control systems which constanly monitorize the basic parameters that assure a correct operation and therefore safeguard the battery’s life.

Technical Characteristics

230V – 50Hz one phase supply, (with possibility to request voltages different from the standard ones), adjustable to ± 5% or ± 10%.
Electronic control provided with final charge timer.
Input cable and negative and positive battery cables (Shuko).
Rectifier bridge with silicon diodes, natural cooling, with snubber protection and gemov.
Tropicalized stray-flux transformer: with double enamel insulation; class H; impregnated in autoclave with ecological epoxy resins.
12/10 sheet steel case provided with electrical bondings and ergonomic handle.
Epoxy powder coating, oven-baked.
Standard colour: RAL2002 RED
Lexan plate with charging data very easy to understand.
Equalization recall push button (optional automatic version).
Option to adjust the charging time.
Option to adjust the threshold voltage from 2.35 to 2.45 V/cell.
“ON – OFF” push button.
Equalization charge timed.
Led signaling charging phases or result.
Short check of functions and times.
Lab-tested electronic circuit conforming to the directive on electomagnetic compatibility and CE marking.
Custom-made colour.
Custom-made logo and silk-screen printing.
Assembly of plugs and battery connectors on request.

“Wa” characteristic
(din 41774)

The charging curve of this model is the Wa (decreasing current charge) is compliant with DIN 41774. The Wa charging curve, is features by a downward trend of the charging current when the battery voltage increases, therefore it takes constant power.

To obtain a suitable charge of the battery, the charger must be able to provide a charging curve as faithful as possible to the theoretical charging curve, which provides an initial charging current equal to 16% of the battery capacity, and a declining trend, as indicated above.

With this kind of charger with standard curve Wa (DIN 41774), it is necessary to determine the charging current required, by calculating the 16% in ampere hours (Ah) of the capacity of the battery (for example: for a 600Ah battery, using a charger with 100A).