Dometic DC/DC Voltage Converter

The Dometic DC/DC voltage converter is a high-frequency switching power converter and battery charger unit that provides optimized charging characteristics across varying input voltages. The device is designed to stabilize energy transfer between the generator and the secondary battery, while ensuring precisely regulated output parameters and high efficiency. Read more...

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• Input voltage (direct current): 24 V
• Output current: 24 A
• IP rating IP20
• Energy efficiency: ≤90%
• Continuous power at 25°C 335.00 W
• Operating temperature min. 0.00 °C
• Operating temperature max. 40.00 °C
• Product dimensions: 106 mm (depth) x 47 mm (height) x 158 mm (width)
• Weight: 0.7 kg

Gross price (including 27% VAT): 166.80€ (Net price: 131.34€)

• Input voltage (DC) 24 V
• Output current 6.00 A
• IP class IP20
• Current consumption - Zero load 8 A
• Energy efficiency ≤90 %
• Continuous power 25°C 120.00 W
• Operating temperature min 0.00 °C
• Operating temperature max 40.00 °C
• Dimensions product depth 118 mm
• Dimensions product height 47 mm
• Dimensions product width 106 mm
• Net weight 0.45 kg

Gross price (including 27% VAT): 96.85€ (Net price: 76.26€)

• Input voltage (DC): 24 V
• Output voltage: 12 V
• Output current: 4,00 A
• Standby power consumption: 1,40 W
• Current consumption - no load: 0,060 A
• Energy efficiency: ≤90 %
• Continuous power 25°C: 48,00 W
• Dimensions: 14.3 mm (depth) x 43 mm (height) x 118 mm (width) x 0.33 kg
• IP20 protection

Gross price (including 27% VAT): 31.21€ (Net price: 24.57€)
3 products in total, page 1: 1 - 3 / 31

What is a Dometic DC/DC voltage converter, and what is its technical function?

The Dometic DC/DC converter is a charging unit that operates with closed-loop control, converting the output of the vehicle’s generator into a stable, battery-type-specific charging voltage. The device is capable of compensating for voltage fluctuations in the smart alternators of modern vehicles, thereby ensuring optimal charging conditions for the auxiliary battery.

How does a DC/DC charging converter with a switched-mode topology work?

The DC/DC charging converter converts the input voltage using PWM-controlled switching elements. During high-frequency switching, energy is stored in inductive and capacitive components and then delivered to the output in a regulated form. The feedback control continuously monitors the output voltage and current and adjusts the duty cycle accordingly.

Why is charge control critical in vehicle systems?

Charge control ensures precise adherence to the battery’s charging curve, which typically consists of a multi-phase (bulk, absorption, float) charging cycle. This prevents overcharging, minimizes thermal stress, and maximizes battery life.

What are the typical input voltage range and dynamic response characteristics?

The input voltage range is defined over a wide interval to accommodate the fluctuating voltage supplied by the generator, particularly in start-stop systems. The converter is capable of maintaining stable output power even at low input voltages, which is critical for continuous charging.

How are the output voltage and current regulated?

Output voltage regulation and current limiting are achieved through closed-loop control that takes into account the battery’s state and type. The system automatically switches between different charging phases, optimizing the charging process.

What role do battery charger converters play at the system level?

Battery charging converters enable isolated and regulated power transfer between systems with different voltage levels. This is particularly important in multi-battery systems, where the primary and secondary energy storage devices have different characteristics.

What are the efficiency and thermal management characteristics?

Efficiency is high, which minimizes losses thanks to the switching topology. Effective thermal management ensures that the device operates stably over the long term, even under high loads.

What battery types is it technically compatible with?

The Dometic DC/DC converter supports multiple battery types, including lead-acid, AGM, gel, and lithium systems. The charging profile automatically adapts to the characteristics of the specific battery.

In what types of environments is it best suited for use?

The converter is primarily intended for use in on-board vehicle systems where it is necessary to regulate energy transfer between the alternator and the auxiliary battery. In such environments, stable operation and reliability are essential requirements.

What are the technical advantages of on-board charging systems?

Onboard charging systems offer an integrated solution for power distribution, reduce losses, and optimize battery charging. This increases the efficiency and operational reliability of the entire system.

How can a stable and safe charging process be ensured?

Stable operation is ensured by built-in protection systems that automatically intervene in the event of overcurrent, overvoltage, or thermal overload. This prevents system damage and increases operational reliability.

How do you select the right Dometic DC/DC converter based on technical parameters?

When making your selection, you should consider the rated charging current, the input range, compatible battery types, and heat dissipation capacity. Choosing based on precise specifications ensures optimal performance.

What are the most common mistakes made during installation or selection?

Common mistakes include selecting a converter with insufficient power rating, as well as improper wiring and cooling. These issues can lead to reduced efficiency and unstable operation.

Frequently Asked Questions About DC/DC Charging Converters from a Technical Perspective

You may wonder whether a separate charger is necessary with a modern generator. The answer is yes, since smart generators do not always provide a constant charging voltage, which the DC/DC converter compensates for.

Under what environmental conditions does it operate optimally?

The Dometic DC/DC voltage converter delivers maximum performance under adequate cooling and ventilation conditions. Ambient temperature and load have a direct impact on operational stability.

Summary: When is the Dometic DC/DC converter the ideal choice?

The Dometic DC/DC converter is the ideal choice for vehicle systems that require precise charge control, stable voltage regulation, and high-efficiency power conversion.


The Dometic DC/DC voltage converter available from DND Telecom Center provides intelligent charge control, stable voltage regulation, and high-efficiency operation for on-board vehicle systems. If you’re looking for a reliable, professional solution for optimal charging and long-term operation of your batteries, you’ll find the right model here, backed by expert support.