Odłącznik niskiego napięcia m-LVD

BLUE SEA's m-LVD (Low Voltage Disconnect) is an automatic low-voltage disconnect 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.

The main functions of the m-LVD include:

Battery protection 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 sound warning.Remote control for adjusting disconnect voltage, an "Override" mode, and manual "OFF" function.

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

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

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

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.

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.

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

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

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

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.

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 a means other than the m-LVD itself.

The m-LVD can be installed 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 installing the remote switch.

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

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

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.

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

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).

Blue Sea Systems supports its products as long as you own them. For detailed warranty information, it is recommended to consult the manufacturer's website.