Mastervolt BI 80A diode load distributor - 3 battery banks ...

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Mastervolt

83012031

Razdjelnik opterećenja BI 1203-S

The Mastervolt BI 1203-S load distributor is a reliable solution for distributing current between three 12/24VDC battery banks. Part of the conventional diode-based BI range, this "S" model includes diode compensation for optimized charging via alternator (120A max) or charger (80A max). It is supplied with the distributor and its integrated connection terminals.

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207,60€

207,60€ ~~207,96€~~

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

Custom installation

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Technical specifications

Nazivni napon	12/24 V
Jakost struje (A)	120.0
Broj strujnih krugova	3.0
Broj polova	3
Podržani baterijski sustavi	3.0
Tip prekidača baterije	Répartiteur de charge à diodes
Metoda kontrole prekidača baterije	À diode
Vrsta resetiranja osigurača	Aucun
Tip osigurača	Aucun
Metoda zaštite električnih krugova	Diode
Nazivna struja kontinuiranog rada DVSR-a	0.0
Vrsta montaže	Montage mural
IP zaštitni stupanj	IP20
Tip zaslona	Aucun
Žičana mreža	Aucun
Certifikati	CE
Raspon radne temperature	-20 à +60 °C
Dimenzije (Š x V x D)	207 x 140 x 80 mm
Težina	1.3
Vrsta proizvoda	Répartiteur de charge

Detailed description

Razdjelnik opterećenja Mastervolt BI 1203-S je robusno i pouzdano rješenje namijenjeno optimizaciji upravljanja energijom na brodovima opremljenima sustavima 12/24 VDC. Omogućuje učinkovitu distribuciju struje punjenja s alternatora ili punjača do tri neovisna baterijska sklopa, uz njihovu električnu izolaciju kako bi se spriječilo međusobno pražnjenje. Ovaj model idealan je za instalacije koje zahtijevaju stabilan napajanje i povećanu zaštitu baterija.

Tehnologija i performanse

Dio je Mastervoltove BI serije, BI 1203-S koristi konvencionalnu diodnu tehnologiju. Razlikuje se od modela bez sufiksa "S" integracijom diode za kompenzaciju. Ova funkcija ključna je jer omogućuje automatsku kompenzaciju pada napona (oko 0,6 V) koji je inherentan diodama kada je razdjelnik povezan s Mastervoltovim punjačima baterija Mastervolt Mass ili regulacijskim uređajima Alpha Pro. Time se osigurava da baterije dobiju puni napon punjenja, što optimizira njihov vijek trajanja i performanse. Za usporedbu, druga Mastervoltova rješenja kao što je Charge Mate usredotočena su na povezivanje/odspajanje dviju baterija, dok Battery Watch nudi nadzor i funkciju glavnog prekidača. BI 1203-S podržava maksimalnu izlaznu struju od 80 A za punjač i 120 A za alternator, s ulaznim naponom od 6 do 50 VDC, te električnom izolacijom od zemlje većom od 500V pri 60Hz.

Konstrukcija i instalacija

Mastervolt BI 1203-S ima kompaktan dizajn s dimenzijama 207 x 140 x 80 mm i težinom od 1,3 kg, što olakšava ugradnju u ograničene prostore na brodu. Konstrukcija je prilagođena morskim uvjetima: izrađen je od materijala potpuno otpornih na koroziju, s aluminijskim hladnjakom i elektroničkim komponentama zalivenim u sintetičke materijale. Ova robusnost osigurava iznimnu trajnost u najzahtjevnijim morskim uvjetima, s radnim temperaturnim rasponom od -40 do +120°C. Instalacija je olakšana sintetičkim pločama na krajevima s priključcima te čvrstim navojnim spojnicama s maticama i osiguračima koji jamče pouzdanu i brzu vezu. Za modele "S" povezivanje sonde (sense-connection) izvora struje ključno je za aktivaciju automatske kompenzacije pada napona.

Documentation

Type	Nom
	FR - Fiche technique - Répartiteur de charge BI 1203-S
	NL - Manuel d'installation et d'utilisation - Répartiteur de charge BI 1203-S

Expert review

Pol CONIN

Digitalni odgovorni

« Technical analysis: Mastervolt BI 1203-S load distributor with diode compensation »

The Mastervolt BI 1203-S is a proven solution for managing multiple battery banks on board. As a conventional diode isolator, it provides essential electrical isolation between up to three battery groups, preventing mutual discharge. With a maximum alternator current rating of 120 A and a charger current rating of 80 A, it is suitable for medium to large marine electrical systems.

The key advantage of the "S" version lies in its integrated compensation diode. This feature is critical for maintaining optimal charging voltage across each battery bank. When paired with Mastervolt Mass chargers or Alpha Pro charge controllers, the BI 1203-S automatically compensates for the inherent 0.6 V voltage drop across the diodes, ensuring batteries receive their full charging voltage without manual adjustment of the source.

Its robust construction, featuring an aluminum heat sink and encapsulated components, ensures excellent durability and resistance to corrosive marine environments. Installation is straightforward with clear terminals and reliable threaded connectors, though connecting the "sense" line is mandatory to fully utilize voltage compensation on "S" models. It is essential to adhere to cable distances and cross-sections to optimize performance and minimize heating under high loads.

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Razdjelnik opterećenja BI 1203-S

207,60€

207,60€ ~~207,96€~~

Frequently Asked Questions

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What is the Mastervolt BI 1203-S load distributor?

The Mastervolt BI 1203-S load distributor is a robust and reliable device designed to optimize energy management aboard vessels. It efficiently distributes charging current from an alternator or charger to multiple independent battery banks.

What is the main function of the BI 1203-S load distributor?

The main function of the BI 1203-S load distributor is to split the charging current between different batteries or battery banks with the same nominal voltage. It ensures electrical isolation between batteries, preventing them from discharging each other.

What is the difference between the BI 1203-S model and a BI splitter without the "S" suffix?

The main difference lies in the integration of a compensation diode on models with the suffix "S" (such as the BI 1203-S). This diode automatically compensates for the voltage drop (approximately 0.6 to 0.7 V) inherent to diodes, ensuring that batteries receive their full charging voltage, especially when paired with Mastervolt Mass chargers or Alpha Pro charge regulators.

How many battery banks can the BI 1203-S battery distributor manage?

The Mastervolt BI 1203-S battery distributor is designed to manage up to three independent battery banks.

What technology is used in the BI 1203-S load distributor?

The BI 1203-S load distributor is based on conventional diode technology.

What are the physical dimensions of the BI 1203-S load distributor?

The dimensions of the BI 1203-S load distributor are as follows:

Height: 207 mm (8.1 inches)Width: 140 mm (5.5 inches)Depth: 80 mm (3.1 inches)

What is the weight of the BI 1203-S load distributor?

The BI 1203-S load distributor weighs 1.3 kg (2.9 lb).

What is the maximum output current for a charger and an alternator with the BI 1203-S?

The BI 1203-S distribution panel can handle a maximum output current of:

80 A for a battery charger. 120 A for an alternator.

What are the manufacturing materials of the BI 1203-S splitter?

The BI 1203-S splitter is made from materials fully resistant to corrosion. It features an aluminum heat sink and its electronic components are encapsulated in synthetic materials for enhanced robustness and durability.

Where should I mount the BI 1203-S charge distributor for optimal performance?

For optimal performance, the BI 1203-S charge distributor must be installed as close as possible to the current source (charger or alternator) and the batteries. It should be mounted in a well-ventilated environment, preferably on a flat metal surface, with the cooling fins positioned vertically. This helps dissipate the heat generated by high currents.

What safety precautions should I take before installing the splitter?

Before any installation, ensure the source of the current output is disconnected (power off). Also check that no loads are connected to the batteries to avoid any dangerous situations.

How to connect the positive terminals of the batteries and the power source to the busbar?

Connections are made as follows:

Connect the positive output of the power source (charger or alternator) to terminal A of the distributor. Terminal A is the longest bolt.Connect the positive connections of the battery banks to terminals 1, 2 and 3 of the distributor, respectively.

How to connect the sense (compensation) probe to the BI 1203-S splitter?

For models with a compensation diode such as the BI 1203-S, connect the sense probe from the current source to the S terminal of the splitter. The S terminal is the thinnest bolt. This connection enables automatic regulation of the output voltage.

Should the negative connections of the batteries and power source be connected to the busbar?

No, the negative connections of battery banks and the power source (charger or alternator) must be connected directly to a common ground point, not to the busbar.

With which Mastervolt equipment is the BI 1203-S splitter specifically designed to operate?

The BI 1203-S splitter is specifically designed to operate optimally with Mastervolt Mass battery chargers and Alpha Pro charge regulators. These devices feature an automatic voltage drop compensation function that leverages the BI 1203-S's compensation diode.