Technical data

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ESL 11 ESL 7

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LampsConverter

MDC / MDCI

DC-DC Voltage Converter

These high end DC-DC converters can be used if the DC

output voltage of a photovoltaic system does not fit to

the needs of the load. Since most low-voltage equipment,

such as lights, multimedia equipment, radio communica-

tion equipment or mobile telephones, are designed for

12 V, the different converter types deliver a stable 12 V

supply. If for example a 12 V DC energy saving lamp is

used in a 24 V or a 48 V system a suitable DC-DC conver-

ter must be connected in between the load output of the

charge controller and the 12 V energy saving lamp.

The MDC and MDCI converters are optimally designed for

the use in photovoltaic applications. The types with 13.6 V

output voltage can also be used as a battery charger for a

12 V~accessory battery in an otherwise 24 V system.

For security reasons the MDCI series is electrically isolated

in order to protect the load. But even the converters of

the MDC series can withstand high voltage spikes at the

input (load dump) and therefore protect your appliances

at the output against damaging overvoltage.

Features

Great variety of different input voltages

Output for 12 V or 24 V loads

Maximum power 360 W

Efficiency of up to 90 %

Best reliability

Electronic Protections

Short circuit protection by current limitation

Overload protection by current limitation

Over-temperature protection by current limitation

Reverse input polarity protection

Certificates

Conform to European Standards (CE)



360 WCOMSHS RVVPS

MDCI 100

MDCI 360

DC-DC

Converter

MDC

2412-5

MDC

2412-8

MDC

2412-12

MDC

2412-20

MDC

2412-30

MDC

1224-7

MDCI

100

MDCI

200

MDCI

360

Input voltage 20-32 V 10-18 V 9-18 / 20-35 / 30-60 / 60-120 V

Output voltage 13.6 V 24 V 12.5 / 24 V

Max. output current 5 A 8 A 12 A 20 A 30 A 7 A 8 / 4 A 16 / 8 A 29 / 15 A

Nominal power 70 W 110 W 165 W 270 W 410 W 170 W 100 W 200 W 360 W

Efficiency max. 90 % 85 %

Galvanic isolation no yes

Cooling convection fan convection convection fan

Ambient temp. allowed -10 °C ... +40 °C -20 °C ... +45 °C

Weight 0.2 kg 0.2 kg 0.3 kg 0.5 kg 0.6 kg 0.5 kg 0.5 kg 0.6 kg 1.4 kg

Dimensions l x w x h 55 x 88 x 49 mm 85 x 88 x 49 mm 115 x 88 x 49 mm 125 x 88 x 49 mm 115 x 88 x 49 mm 151 x 88 x 49 mm 182 x 88 x 49 mm 152 x 163 x 63 mm

Technical data at 25 °C / 77 °F

Steca Solsum ESL

5 W, 7 W, 11 W / 12 V Energy Saving Lamp

Steca designed and recently improved the electronic

ballast of the 12 V DC compact fluorescent lamp (CFL).

Preheating, high electronic efficiency and low thermal

losses increase the lifetime of the CFL to more than

100.000 on/off switching cycles. The Steca CFLs show

much higher lumen efficiencies (lm/W) compared to LED

or incandescent lamps.

Features

Brightness of 11 W CFL is comparable with

a 60 W incandescent bulb

Saves up to 80 % of energy compared to an

incandescent bulb

High reliabilty of more than 100.000 on/off

switching cycles

Easy to install by a E27 or bayonet socket

Several years of operation in the field

Compact and robust product design

Certificates

Conform to European Standards (CE)

Listed for Worldbank funded projects in

China, Sri Lanka

Developed in Germany

Manufactured in an ISO 9001 facility



COMSHS RV

Technical data Technical data

Steca Energy Saving

Lamp

ESL 5 ESL 7 ESL 11

Nominal current at 12 V 420 mA 580 mA 920 mA

Nominal voltage 12 V

Input voltage 10 V - 15 V

Nominal power 5 W 7 W 11 W

Luminus flux 250 Lm 370 Lm 650 Lm

Luminus efficiency 50 lm/W 52 lm/W 60 lm/W

Life span (min.) 9.000 h

Switching cycles 100.000

Ambient temperature

allowed

-20 °C ... +50 °C

Dimensions l x w 123 x 55 mm 133 x 55 mm 163 x 55 mm

Weight 125 g 135 g

Socket E27/Bayonet

Light colour cool white (6400K) / warm white (2700K)

Technical data at 25 °C / 77 °F