21250-head
21251-head

MDC | MDCI

DC-DC voltage converter

Description

DC-DC voltage converters are used when the DC output voltage of the PV system does not meet the needs of the consumers.

As a voltage level of 12 V is required for most low-voltage devices such as lamps, multimedia devices, radios or mobile phones, the different types of voltage converters provide a stable 12 V supply. If, for example, a 12 V energy-saving lamp is operated in a 24 V or 48 V system, a suitable DC-DC voltage converter must be inserted between the load output of the charge controller and the 12 V energy-saving lamp.

The MDC and MDCI voltage converters are designed for use in photovoltaic systems. The types with an output voltage of 13.8 V can also be used as a battery charger of a 12 V battery in a 24 V system.

For safety reasons, the MDCI series is galvanically isolated to protect the consumers. Both the MDCI and MDC series are protected against high voltage peaks at the input, preventing any damaging surges at the input of the loads.

Steca MDC MDCI technische Zeichnung

Features

Product features

  • High efficiency
  • Automatic detection of voltage
  • Wide input voltage range
  • Best reliability
  • Parallel switching of up to two MDCI

Electronic protection functions

  • Overtemperature and overload protection
  • Reverse polarity protection
  • Short circuit protection

Certificates

  • Compliant with European Standards (CE)
  • RoHS compliant
  • Made in EU

Downloads

Product data sheet

  •  MDC | MDCI productdatasheet DE · pdf · 1,056 MB
  •  MDC | MDCI productdatasheet EN · pdf · 1.056 MB

Manuals

  •  MDC | MDCI manual DE, EN, FR · pdf · 0.156 MB

Product pics, technical drawings, etc.

  •  MDC | MDCI product pic 3D · jpg, 300 DPI, high quality · 0.267 MB
  •  MDC | MDCI product pic 3D · jpg, 72 DPI, web quality · 0.157 MB

Technical data

 MDC 2412-5MDC 2412-8MDC 2412-12MDC 2412-20MDC 2412-30MDC 1224-7MDCI 100MDCI 200MDCI 360
Characterisation of the operating performance
Nominal power
65 W
105 W
160 W
275 W
415 W
170 W
100 W
200 W
360 W
Max. efficiency
90 %
90 %
90 %
90 %
90 %
90 %
85 %
85 %
85 %
DC input side
Input voltage
18 V … 35 V
18 V … 35 V
20 V … 35 V
20 V … 35 V
20 V … 35 V
9 V … 18 V
9 V … 18 V / 20 V … 35 V / 30 V … 60 V / 60 V … 120 V
9 V … 18 V / 20 V … 35 V / 30 V … 60 V / 60 V … 120 V
9 V … 18 V / 20 V … 35 V / 30 V … 60 V / 60 V … 120 V
DC output side
Output voltage
13.2 V
13.2 V
13.2 V
13.8 V
13.8 V
24 V
12.5 V / 24.5 V
12.5 V / 24.5 V
12.5 V / 24.5 V
Output current
5.5 A
8 A
12 A
20 A
30 A
7 A
8 A / 4A
16.5 A / 8 A
30 A / 15 A
Operating conditions
Ambient temperature
-20 °C … +40 °C
-20 °C … +40 °C
-20 °C … +40 °C
-20 °C … +40 °C
-20 °C … +40 °C
-20 °C … +40 °C
-20 °C … +45 °C
-20 °C … +45 °C
-20 °C … +45 °C
Fitting and construction
Galvanic isolation
no
no
no
no
no
no
yes
yes
yes
Dimensions (X x Y x Z)
87 x 55 x 49 mm
87 x 85 x 49 mm
87 x 85 x 49 mm
87 x 115 x 49 mm
87 x 125 x 49 mm
87 x 115 x 49 mm
88 x 152 x 49 mm
88 x 182 x 49 mm
163 x 160 x 64 mm
Weight
170 g
250 g
260 g
480 g
600 g
300 g
500 g
600 g
1400 g
Cooling principle
convection
convection
convection
convection
fan
convection
convection
fan
fan
 
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