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9. Approvals and standards
- The charging units correspond to the following standards:
EN 55014-2 Immunity requirements for household appliances, electric tools and similar electrical
appliances
EN 50082-1 Basic standard for interference rejection; living area, business areas as well as small
enterprises
EN 60065 Safety requirements for mains-operated electronic appliances and related accessories
for house hold use and similar general application
EN 60742 Regulations for isolation transformers and safety transformers
10. Specifications DEM 313
Mains voltage 230 V +10%/-15 % 50-60 Hz
internally solderable to 115 V +10%/-15 % 50-60 Hz
Safety class I
Rated output voltage 24 V
Voltage adjustment for
battery charging 2.275 V/cell 27.3 V
Tolerance of the output voltage at 20°C ± 0.37 %
Temperature coefficient of the charging voltage -40 mV/°C
Ripple at nominal operation ≤ 0.1%
Static mains control
at input deviations of +l 0% -15 % ≤ 0.05%
Nominal charging current 4 A
Current limitation approx. 4 A
Standby current at power failure 110 mA
Switching frequency 88 kHz ±l0%
Efficiency approx. 83 %
Failure detection OVERVOLTAGE ≥ 29.6 V
Failure detection at battery LOW VOLTAGE ≤ 25.5 V operation mode charging
Failure detection at battery LOW VOLTAGE ≤ 22.0 V operation mode discharging
Failure detection at mains low voltage LINE VOLTAGE 165 V ±15% for 230 V ac operation
Failure detection at mains low voltage LINE VOLTAGE 83.5 V ±15% for 115 V ac operation
Switch-off at BATTERY VOLTAGE ≤ 19.5 V
Failure detection at CHARGE CURRENT ≤ 20 rrA
Operating temperature range +5″C + 40″C
Storage temperature -40″C+ 70″C
Dimensions W x H x D 483 x 88 x 335 mm
Mounting depth without connectors 300 mm
Mounting depth with connectorsmax. 350 mm
Weight 4.4 kg
Retrofitting kit for DEM 313: Art.No
NRS 90200 temperature sensor 121950
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