A46F BATTERY CHARGER Magnetic Amplifier Technology

The La Marche A46F battery charger is specially designed for maintaining and recharging starting batteries of engine generator sets. The controlled magnetic amplifier technology provides the highest reliability that is necessary for the continued operation of the emergency standby equipment and eliminates most starting problems by maintaining batteries at a proper charge, ensuring optimum performance and maximum life. These chargers can also be customized to meet the American Bureau of Shipping (ABS) and United States Coast Guard (USCG) standards for applications such as offshore and on board vessels.

Magnetic Amplifier Circuitry
Filtered for Valve-Regulated Batteries
Automatic DC Voltage Regulation
Automatic AC Input Voltage Compensation +/- 10%
Automatic Surge Suppression
Analog DC Ammeter & DC Voltmeter
DC Current Limiting Circuitry
AC Input and DC Output Fusing
AC Power Failure Relay with (1) set of Form “C” Contacts
Float/Equalize Mode Switching
Charger Design Prevents Battery from Discharging if AC Line Fails
AC to DC Isolation
UL 1564 Listed and C-UL Listed
5-Year Full Warranty
10-Year Magnetics Warranty

APPLICATIONS

Engine Generator Sets (Prime Application). Used to keep generator starting batteries fully charged and ready, ensuring reliable engine starts during power outages or routine operation.

Marine & Offshore Platforms. Can be customized to meet ABS (American Bureau of Shipping) and USCG (United States Coast Guard) standards, making it ideal for use on: Ships and boats, Oil & gas offshore rigs, Coastal defense systems

Industrial Backup Systems. Supports industrial facilities where emergency standby power is critical-ensures batteries are ready to operate Fire pump engines, Emergency lighting systems, Industrial motor-driven equipment

Power Utilities & Substations. Used to maintain backup batteries for control systems, switchgear, and protection relays, ensuring grid operations are not disrupted during outages.

Critical Infrastructure Facilities. Perfect for government buildings, hospitals, data centers, and any infrastructure where uninterrupted engine-start capability is essential.

ADVANTGAES:

Magnetic Amplifier Technology = Maximum Reliability. This time-tested, rugged technology ensures the charger performs reliably in harsh and mission-critical environments like generator sets and marine applications. It’s less prone to failure compared to complex digital electronics—ideal for emergency backup systems.

Prevents Battery Discharge on AC Failure. If AC power fails, the charger is designed so the battery does not backfeed into the charger and discharge. This feature is critical for maintaining battery readiness for engine starting or emergency loads when power is lost.

Automatic Surge Suppression & Voltage Regulation. Protects both the battery and connected equipment from damage due to power spikes or fluctuations, ensuring safe and consistent operation.

Filtered Output for Valve-Regulated Batteries. VRLA (sealed lead-acid) batteries are sensitive to ripple and noise. The A46F’s filtered DC output helps prolong battery life and maintain optimal performance, reducing maintenance costs.

Marine-Ready Design (ABS/USCG Customization). Can be built to maritime safety standards, making it suitable for use on offshore platforms and vessels where compliance is mandatory. This expands the charger’s versatility across industries.