Stecamat 302

Processor-controlled lead-acid battery charger and power supply unit


The Stecamat 302 battery charger and power supply unit is available from 12 V to 36 V with a rated power of 430 W to 650 W, also with automatic switching. Parallel consumers can be supplied
up to the maximum device current. Your battery is charged gently and quickly by the processor-controlled charging process. This also allows pre-damaged or deeply discharged batteries to be treated, making a long service life possible with the Stecamat 302. A light-emitting diode gives you quick information about the charging status.

The Stecamat 302 charger is suitable for use in vehicles with its robust and splash-proof housing. A high ambient temperature range with convection cooling
and the simple operation ensure seamless operation. The selective on-board power supply protection circuit ensures the greatest possible safety during operation on vehicles. Its extensive accessories means that the ideal solution can be created for any application. For example, a special fire brigade version is available.


Product features

  • Half the charging time compared to simple, non-controlled chargers with the same rated current
  • Optimal for charging batteries with liquid electrolyte and gel / absorbed electrolyte (AGM)
  • Suitable for totally discharged batteries
  • Constant battery operational readiness through integrated trickle charge
  • Ready for operation in just a few minutes
  • Charging below the gassing voltage
  • Optimal charging of damaged batteries
  • Individually programmed upon request

Electronic protection functions

  • Protection in the case of wrong or damaged batteries
  • Battery overcharge protection
  • Charger output protected against short circuits, reverse polarity and overvoltage


  • LED shows operating states


  •  Stecamat 302 productdatasheet DE · pdf · 0,895 MB
  •  Stecamat 302 productdatasheet EN · pdf · 0.895 MB
  •  Stecamat 302 product pic 3D · jpg, 300 DPI, high quality · 1.644 MB
  •  Stecamat 302 product pic 3D · jpg, 72 DPI, web quality · 0.289 MB

Technical data

Charging rated voltage
12 V
24 V
36 V
12 V
24 V
Charge current
30 A
20 A
15 A
30 A
20 A
End-of-charge voltage
14.4 V
28.8 V
43.2 V
14.4 V
28.8 V
Trickle charge voltage
13.8 V
27.6 V
41.4 V
13.8 V
27.6 V
Characteristic curve
Grid voltage
230 V AC ±10 %, can be switched to 115 V AC ±10 %
Frequency range
50 Hz / 60 Hz
Mains electricity (230 V)
3.3 A
Mains electricity (110 V)
6.6 A
Discharge current during grid failure
1.3 mA
2.6 mA
3.9 mA
2.6 mA
2.6 mA
Protection class
aluminium / plastic
Degree of protection
IP 54
Ambient temperature
-20 °C … +60 °C
Cooling principle
Dimensions (X x Y x Z)
358 x 145 x 310 mm
15.0 kg
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