m-LVD Low Voltage Disconnect - Dimensioned Drawing

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Blue Sea Systems

7635-BSS

Odspojnik niskog napona 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€~~

UK Isporuke izračunate u trenutku plaćanja.

Na zalihi

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

Custom installation

Trust Skysat for onboard equipment installation

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Installers near you

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Support service

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Technical specifications

Nazivni napon	12
Veličina priključka	M6 (1/4"-20)
IP zaštitni stupanj	IP67
Zaštita AFD	Non
Alarm Time Before Disconnect	5
Struja (A) – kontinuirana	65.0
Vrsta upravljanja	Commutateur à distance
Dimenzije (Š x V x D)	70 x 70 x 50
Disconnect Voltage Range	11.3V - 12.1V
Factory Default Disconnect Voltage	12.1
Povremena struja (A)	115 (5 min)
Može se zaključati ključem	Non
Vrsta montaže	Surface, panneau avant ou panneau arrière
Broj polova	1
Operating Current Connected Ma	95
Operating Current Open Ma	4
Raspon radnog napona	11.3V - 13.5V DC (nominal 12V DC)
Promjer otvora za ugradnju ploče (mm)	58.7
Pozicije	Réglage de la tension de déconnexion, Override, Arrêt
Namjena proizvoda	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 prekidača	Déconnecteur de basse tension automatique
Tip priključka	Goujon fileté
Time Delay To Alarm	5
Total Disconnect Delay	10
Vrsta ožičenja/veze	À goujons

Detailed description

Dizajniran za inteligentno upravljanje napajanjem 12V istosmjernih sustava, m-LVD Low Voltage Disconnect od BLUE SEA je automatski odspojnik niskog napona. Osigurava zaštitu baterija od dubokog pražnjenja automatskim isključivanjem nebitnih opterećenja kada napon baterije padne ispod unaprijed definirane granice. Ova funkcija omogućuje očuvanje energije potrebne za pokretanje motora ili produljenje vijeka trajanja baterije.

Tehničke specifikacije i ključne značajke

m-LVD ima nazivni napon od 12V istosmjerno, s kapacitetom od 65A kontinuirano i 115A u intervalima od 5 minuta. Napon isključivanja je podešljiv od 11,3V do 12,1V, s tvorničkim podešenjem na 12,1V. Sustav uključuje kašnjenje od 5 minuta prije aktiviranja alarma (ako je opcija omogućena) kada napon padne ispod granice, nakon čega slijedi dodatno kašnjenje od 5 minuta prije konačnog isključivanja, što ukupno iznosi 10 minuta. Ponovno spajanje se odvija automatski kada napon bude iznad 13,0V tijekom 2 minute ili iznad 13,5V tijekom 30 sekundi. Radna struja iznosi 95mA u stanju spajanja i 4mA u stanju isključenja.

Ovaj odspojnik isporučuje se s daljinskim upravljačkim prekidačem PN 7928, koji omogućuje podešavanje napona isključivanja, aktivaciju "Override" moda koji odgađa isključivanje za 10 minuta, ili ručno isključivanje krugova putem funkcije "OFF". Prekidač također omogućuje onemogućavanje opcionalnog zvučnog alarma. m-LVD je certificiran IP67 za privremeno uranjanje i zadovoljava zahtjeve zaštite od vanjskog paljenja prema ISO 8846 i SAE J1171. Podržava kabele do 1/0 AWG (50mm²) s vijcima priključaka 1/4"-20 (M6) koji zahtijevaju moment sile od 60 in-lb (6,78 Nm). Masa uređaja nije navedena u priloženoj dokumentaciji ili web izvorima.

Integracija i pozicioniranje

Dok proizvodi poput ručnih prekidača baterija BLUE SEA ili razdjeljivača napona (ACR) upravljaju redom izolacijom ili raspodjelom napona, m-LVD se pozicionira kao element proaktivne zaštite baterija. Razlikuje se od jednostavnog prekidača baterije po automatizaciji i sposobnosti upravljanja isključivo nebitnim opterećenjima. U usporedbi s složenijim rješenjima koja uključuju multifunkcionalne upravljače baterijama, m-LVD nudi ciljanu i pojednostavljenu rješenje za odspajanje niskog napona, posebno prikladno za 12V istosmjerne instalacije koje zahtijevaju pouzdanu zaštitu od dubokog pražnjenja bez složenosti cjelovitog sustava.

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

Digitalni odgovorni

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

Blue Sea's m-LVD low-voltage disconnect 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 maintain sufficient energy reserves for engine starting by automatically shedding non-essential 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). An optional alarm adds value, providing an early warning before disconnection.

This m-LVD stands out from traditional battery disconnects through its intelligence and automation. Unlike a simple switch, it actively monitors voltage and acts preventively. Its ability to adjust the disconnect 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, not requiring 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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Odspojnik niskog napona 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 preset threshold. This preserves the energy required for engine starting or extends battery life.

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 of low-voltage status.An alarm output for optional audible warning.Remote control for adjusting the 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 water-resistant or suitable for marine environments?

Yes, the m-LVD is IP67 certified, meaning it is protected against temporary immersion. It also meets external ignition protection requirements per 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 consumes 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 m-LVD disconnect voltage?

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 approximately 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 removing power permanently 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 the remote control switch installation.

What cable size is recommended to connect 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 PN 7928 remote control switch. 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, using fuses is 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 (e.g., 24V DC or AC).