m-LVD Low Voltage Disconnect - Dimensioned Drawing

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Prihranek 7%

Blue Sea Systems

7635-BSS

Odklopnik nizke napetosti m-LVD

Le déconnecteur basse tension BLUE SEA m-LVD est une solution automatique pour protéger vos batteries 12V DC de la décharge profonde, en coupant les charges non essentielles. Il offre une tension de déconnexion ajustable de 11.3V à 12.1V et une certification IP67. Ce produit inclut le commutateur de contrôle à distance PN 7928 et un couvercle isolant arrière.

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127,73€

127,73€ ~~138,72€~~

DDV vključen Dostava se izračuna ob plačilu.

Na zalogi

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 certified installers

Find an installer

Support service

Choose complementary installation support

Technical specifications

Nazivna napetost	12
Velikost priključka	M6 (1/4"-20)
IP razred	IP67
AFD-zaščita	Non
Alarm Time Before Disconnect	5
Nihajoči tok (A)	65.0
Vrsta upravljanja	Commutateur à distance
Dimenzije (D x V x G)	70 x 70 x 50
Disconnect Voltage Range	11.3V - 12.1V
Factory Default Disconnect Voltage	12.1
Prekinoma tok (A)	115 (5 min)
Zaklep z ključem	Non
Tip montaže	Surface, panneau avant ou panneau arrière
Število polov	1
Operating Current Connected Ma	95
Operating Current Open Ma	4
Območje delovne napetosti	11.3V - 13.5V DC (nominal 12V DC)
Premer izreznega odprtja za panel	58.7
Položaji	Réglage de la tension de déconnexion, Override, Arrêt
Namembnost izdelka	Déconnecte automatiquement les charges non essentielles pour préserver la batterie et assurer le démarrage du moteur.
Reconnect Voltage	13
Remote Control Switch Included	Oui
Tip stikala	Déconnecteur de basse tension automatique
Tip priključka	Goujon fileté
Time Delay To Alarm	5
Total Disconnect Delay	10
Vrsta ožičenjske povezave	À goujons

Detailed description

Namenjen za pametno upravljanje napajanja 12V DC sistemov je m-LVD Low Voltage Disconnect od podjetja BLUE SEA samodejni odklopnik nizke napetosti. Ščiti baterije pred globokim izpraznjenjem tako, da samodejno odklopi neessencialne porabnike, ko napetost baterije pade pod predhodno nastavljeno mejo. Ta funkcija omogoča ohranjanje energije za zagon motorja ali podaljšanje življenjske dobe baterije.

Tehnične specifikacije in ključne funkcije

m-LVD ima nazivno napetost 12V DC, z kontinuirnim tokom 65A in 115A v intervalih 5 minut. Napetost odklopa je nastavljiva od 11,3V do 12,1V, z tovarniškim nastavitvijo 12,1V. Sistem vključuje 5-minutno zakasnitev pred aktivacijo opozorilnega signala (če je opcija vklopljena), ko napetost pade pod mejo, sledijo dodatne 5 minute pred dejanskim odklopom, kar znaša skupaj 10 minut. Ponovna povezava se samodejno aktivira, ko je napetost nad 13,0V 2 minuti ali nad 13,5V 30 sekund. Delovna tok je 95mA v stanju povezanosti in 4mA v stanju odklopa.

Odklopnik je dobavljen z daljinskim krmilnim stikalom PN 7928, ki omogoča nastavljanje napetosti odklopa, aktivacijo načina »Override«, ki zakasni odklop za 10 minut, ali ročni odklop krogov preko funkcije »OFF«. Stikalo omogoča tudi izklop opcijskega zvočnega opozorila. m-LVD je certificiran po IP67 za začasno potopitev in ustreza zahtevam za zaščito pred zunanjim vžigom po ISO 8846 in SAE J1171. Podpira kabli do 1/0 AWG (50mm²) z vijaki 1/4"-20 (M6) z navorom 60 in-lb (6,78 Nm). Teža enote ni navedena v dokumentaciji ali spletnih virih.

Vključevanje in nameščanje

Medtem ko proizvodi, kot so ročni odklopniki baterij BLUE SEA ali razdeljevalniki toka (ACR), upravljajo izolacijo oziroma porazdeljevanje toka, se m-LVD postavlja kot element proaktivne zaščite baterij. Od ročnega odklopnika se razlikuje po samodejnosti in sposobnosti upravljanja le neessencialnih porabnikov. V primerjavi s kompleksnejšimi rešitvami, ki vključujejo multifunkcijske upravljavce baterij, ponuja m-LVD usmerjeno in poenostavljeno rešitev za odklop nizke napetosti, ki je posebno primerna za 12V DC napajalne sisteme, ki potrebujejo zanesljivo zaščito pred globokim izpraznjenjem brez kompleksnosti celotnega sistema.

Documentation

Type	Nom
	EN - Instructions - m-LVD Low Voltage Disconnect
	EN - Certificate - m-LVD Low Voltage Disconnect
	EN - Certificate - m-LVD Low Voltage Disconnect

Expert review

Pol CONIN

Odgovorni digitalni vodja

« Smart 12V DC battery protection: expert review of the m-LVD disconnect switch »

The BLUE SEA m-LVD low-voltage disconnect switch is a critical component for the longevity of 12V DC onboard electrical systems. It is specifically designed for boat owners, recreational vehicle users, or standalone installations seeking to protect their service battery bank from deep discharges without constant manual intervention. Its primary function is to preserve sufficient energy reserves for engine starting by automatically shedding secondary loads before voltage reaches a critical threshold.

Installation is simplified by its multiple mounting options (surface, front or rear panel) and clear documentation. For optimal integration, it should be placed on non-critical charging circuits downstream of the main battery switch. Wiring must comply with recommendations for 6 AWG (16mm²) for nominal currents, though the device physically accepts up to 1/0 AWG (50mm²). Adding an optional alarm provides an early warning before disconnection occurs.

This m-LVD stands out from traditional battery switches by its intelligence and automation. Unlike a simple switch, it actively monitors voltage and acts preventively. Its ability to adjust the disconnection voltage (between 11.3V and 12.1V) and the "Override" function via the remote switch offers valuable flexibility to adapt to different battery types and immediate user needs. It is a standalone and effective solution that does not require integration into a complex NMEA 2000 network, making it particularly relevant for simpler electrical systems or as a complement to existing installations. Its robust design, IP67 certified and compliant with ignition protection standards, ensures reliability in marine environments.

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Odklopnik nizke napetosti m-LVD

127,73€

127,73€ ~~138,72€~~

Frequently asked questions

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What is BLUE SEA's m-LVD Low Voltage Disconnect?

BLUE SEA's m-LVD (Low Voltage Disconnect) is an automatic low-voltage disconnect device designed for 12V DC systems. Its primary function is to protect batteries from deep discharge by automatically cutting non-essential loads when the battery voltage drops below a predefined threshold. This preserves the energy required for engine starting or extends battery lifespan.

What are the main functions of the m-LVD Low Voltage Disconnect?

The main functions of the m-LVD include:

Protection of batteries against deep discharge.Automatic disconnection of non-essential loads in case of low voltage.Automatic reconnection of circuits when battery voltage is restored.A visual indicator for low-voltage status.An alarm output for optional sound warning.Remote control for adjusting disconnect voltage, an "Override" mode, and a manual "OFF" function.

What is the nominal operating voltage of the m-LVD?

The m-LVD Low Voltage Disconnect is designed to operate at a nominal voltage of 12V DC.

What is the DC current capacity of the m-LVD?

The m-LVD can handle a DC current of 65 amperes (A).

What is the intermittent current capacity of the m-LVD?

The m-LVD has an intermittent current capacity of 115 amperes (A) for a maximum duration of 5 minutes.

Is the m-LVD waterproof or resistant to marine environments?

Yes, the m-LVD is IP67 certified, meaning it is protected against temporary immersion. It also meets the external ignition protection requirements of ISO 8846 and SAE J1171, making it suitable for marine environments.

What are the safety certifications of the m-LVD?

The m-LVD complies with external ignition protection requirements per ISO 8846 and SAE J1171 standards. It is also CE certified under Directive 2013/53/EU for recreational craft and powered watercraft.

What is the current consumption of the m-LVD?

The m-LVD draws 95 mA in connected state (normal operation) and only 4 mA in open state (disconnected).

Does the m-LVD have a visual indicator for voltage status?

Yes, the m-LVD is equipped with a status light that provides a visual warning of low voltage before disconnection. This indicator is present on both the m-LVD and the remote control switch.

Can the m-LVD trigger an audible alarm in case of low voltage?

Yes, the m-LVD has an alarm output that can be connected to an optional audible alarm. This alarm triggers 5 minutes after the voltage drops below the disconnect threshold, providing an audible warning before the circuits are effectively cut off.

How to adjust the disconnect voltage of the m-LVD?

To adjust the disconnect voltage, hold the OVERRIDE position on the remote control switch for 10 seconds. The LED indicator will start flashing to show the current setting. Use the OFF position to decrease the voltage in 0.2V increments (down to 11.3V) and the OVERRIDE position to increase it (up to 12.1V). The factory setting is 12.1V. Release the switch and wait about 20 seconds for the new setting to be saved.

What are the safety prerequisites before installing the m-LVD?

Before starting any electrical installation, it is imperative to disconnect all AC and DC power sources. If you are not familiar with electrical systems, it is recommended to consult a qualified professional. Never service equipment that has been automatically disconnected by the m-LVD without first permanently removing power by another means than the m-LVD itself.

How to choose the mounting location for the m-LVD and its remote control switch?

The m-LVD can be mounted in three ways: on the rear panel, on the front panel, or surface-mounted. The remote control switch is typically mounted on a panel. Drilling dimensions are provided for mounting the remote switch.

What cable size is recommended for connecting the m-LVD?

To meet the current capacity of the m-LVD, the minimum recommended cable size is 6 AWG (16mm²). However, larger cable sizes may be required to minimize voltage drop over long distances. It is recommended to consult a certified ABYC electrician for proper cable sizing and fuse selection.

What are the dimensions of the m-LVD connection terminals?

The m-LVD connection terminals are 1/4"-20 (M6) studs.

Is the m-LVD supplied with a remote control switch?

Yes, the m-LVD is supplied with the remote control switch PN 7928. This switch allows you to adjust the disconnect voltage, activate the "Override" mode, or manually cut circuits using the "OFF" function.

Should fuses be used with the m-LVD? And if so, what size?

Yes, fuses are essential for circuit protection. The fuse size depends on the maximum current of the protected circuit:

For ≤30A: 40A–50A fuse with #10 AWG (6mm²) cableFor ≤50A: 60A–65A fuse with #8 AWG (10mm²) cableFor ≤65A: 90A–100A fuse with #6 AWG (16mm²) cableIt is recommended to consult a certified ABYC electrician for correct fuse placement and sizing.

Is the m-LVD compatible with systems other than 12V DC?

No, the m-LVD is specifically designed for electrical systems with a nominal voltage of 12V DC. It is not compatible with systems of different voltage (for example, 24V DC or AC).