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Mastervolt

81400600

DC Master 48/12-6 Converter

The Mastervolt DC Master 48/12-6 non-isolated step-down converter converts 48V input to a stable 12V output (13.6 V) at a continuous current of 6A. Designed for marine environments with its IP53-rated aluminum housing, it provides a compact and silent solution for powering low-power electronic equipment. The product is supplied complete with a snap-on wall mounting bracket, fasteners, and Faston terminals for immediate connection.

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193,89€

193,89€ ~~215,00€~~

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Prices shown excluding VAT for Türkiye. If your delivery address is in the European Union, the VAT of the destination country will be added at checkout.

Available in stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

IP rating	IP53
Marine-ready	Oui
Operating temperature range	-25 °C to 80 °C, derating > 30 °C
Cooling method	Natural convection
Dimensions (W x H x D)	87 x 89 x 50 mm
Mounting type	Snap-on mounting bracket
Weight	0.415
Wired input	Faston connectors
Wired output	Faston connectors
Nominal input voltage	48.0
Input voltage range	40-62 V
Nominal output voltage	13.6
Continuous power at 25°C	82.0
Continuous output power (40°C)	82.0
Peak power	109.0
Max efficiency	90.0
Parallel connection	Oui
Short-circuit protection	Oui
Overload protection	Oui
Recommended fuse rating	5.0
Converter topology	Non-insulated
Energy efficiency rating	90.0
Galvanic isolation voltage	0.0
Marine grade	Oui
Output current	6.0
Max output power	109.0
Output voltage	13.6
Over-temperature protection	Oui
Over-voltage protection	Oui
Power conversion type	DC-DC buck converter

Detailed description

The Mastervolt DC Master 48/12-6 converter is designed to provide a stable 12V output from a 48V battery bank. Ideal for marine and industrial applications, this non-isolated step-down voltage converter ensures reliable power for sensitive 12V electronic equipment, with a continuous output of 6A and peaks up to 8A for two minutes. Thanks to its high-quality switching technology, it delivers efficient energy conversion with perfectly controlled heat dissipation.

Electrical performance and integration

Accepting an input voltage range of 40 to 62 V DC, this model delivers a stabilized nominal voltage of 13.6 V, protecting your navigation instruments, LED lighting, or communication systems from voltage fluctuations on board. With a no-load consumption of less than 100 mA, the DC Master 48/12-6 preserves the autonomy of your 48V battery bank. Unlike the isolated models in the Mastervolt range, which galvanically separate circuits, this non-isolated version offers an ultra-compact design (89 x 87 x 50 mm) and a reduced weight of 415 grams, making it ideal for confined spaces where a common ground does not cause ground loop issues.

Robust design for marine environments

The anodized aluminum and fiberglass-reinforced polycarbonate housing provides excellent mechanical strength and passive heat dissipation without a fan, ensuring completely silent operation. Certified IP53, it resists water splashes and dust. Installation is simplified by a dedicated mounting bracket onto which the unit clips, and by Faston-type electrical connections for quick and secure wiring. For higher power requirements on a 48V network, consider the DC Master 48/12-9A or 48/12-20A models from the same range.

Documentation

Type	Nom
	EN - Manuel utilisateur - Convertiseur DC Master 48/12-6
	IT - Brochure de présentation produit - Convertiseur DC Master 48/12-6

Expert opinion

Pol CONIN

Digital Manager

« Thermal reliability and compactness for 48V to 12V step-down »

The Mastervolt DC Master 48/12-6 converter perfectly addresses the integration issues of standard 12V equipment (VHF, chartplotters, lighting) on vessels or industrial vehicles equipped with 48V service battery banks. Although this is a non-isolated model, its conversion topology ensures excellent stability of the 13.6 V output voltage, even during significant input voltage variations (up to 62 V). Its extremely compact format and clip-mounting system make installation particularly easy in confined spaces or dense electrical panels. The absence of a fan (cooling via natural convection through the aluminum housing) is a major asset for long-term reliability, eliminating risks of mechanical failures due to marine fouling. This is a pragmatic and highly reliable choice for continuous loads up to 6A (82W).

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DC Master 48/12-6 Converter

193,89€

193,89€ ~~215,00€~~

Frequently Asked Questions

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What is the Mastervolt DC Master 48/12-6 converter used for?

It converts the voltage from a 48V battery bank into a stable 12V output (13.6V nominal). Ideal for powering 12V equipment (navigation electronics, lighting, communication) from a 48V system.

What is the output power of this converter?

It delivers a continuous current of 6A (82W) and can supply a peak current of 8A (109W) for a maximum duration of two minutes.

Is this model galvanically isolated?

No, the 48/12-6 model (reference 81400600) is a non-isolated converter. This means it has a common ground, which is perfectly suitable for installations where the ground loop is not an issue and allows for a more compact format.

Does the device emit noise during operation?

No, it operates completely silently. Cooling is achieved naturally (passive thermal dissipation) thanks to its aluminum housing, without requiring a fan.

What is the accepted input voltage range?

To deliver full output power, the inverter accepts an input voltage between 40 and 62 V DC. It tolerates voltages from 0 to 65 V DC without sustaining physical damage.

How to mount the converter on board my boat?

Installation is straightforward thanks to the included mounting bracket. Simply secure the bracket (clip) with the provided screws onto a flat surface, then snap the converter into place.

What items are included in the box?

The DC Master converter is supplied with all necessary accessories:

- A mounting bracket (clip)

- Mounting screws

- Faston terminals for electrical connection

Should a fuse be installed with this converter?

Yes, for safety reasons, it is imperative to install a fuse on the positive wiring and to place it as close as possible to the 48V battery.

What is the cable connection order during installation?

During installation, you must first connect the two input cables (coming from the 48V battery). Only then can you connect the output cables to your 12V equipment.

Which type of connectors should I use for wiring?

The device's input and output connections are made via Faston-type terminals, which are also supplied with the converter.

Where should I install the converter?

It is strongly recommended to choose a cool, dry, and well-ventilated location to ensure optimal heat dissipation and extend the device's lifespan.

Can I use this converter to power sensitive electronic devices?

Absolutely. The output voltage is stabilized at 13.6 V, which effectively protects your navigation instruments, communication systems, or LED lighting from voltage fluctuations on board.

Can this converter be used on a 24V battery system?

No, this specific model (48/12-6) is designed exclusively for a nominal input voltage of 48V. For a 24V system, you must choose models from the Mastervolt 24/12 range.

Is the converter suitable for use outside of marine applications?

Yes, although it is very popular in nautical applications, its robustness and certifications (CE, E-mark) make it perfectly suitable for leisure vehicles (motorhomes) and industrial applications.

Should power be disconnected during installation?

Yes, it is essential to ensure the power source output is turned off and no consumers are connected to the batteries during installation to avoid any electrical risk.

Can the output voltage vary depending on the load?

No, the inverter is equipped with a stabilization function. It maintains a constant output voltage of 13.6 V, regardless of load variations, as long as you stay within its capacity limits (6A continuous).