La Marche A77D / A77DE

Microprocessor Controlled SCR Battery Charger

The La Marche Model A77 Series Battery Charger is engineered for the demanding requirements of Switchgear, Process Control, Oil Exploration and other DC power applications. Powered by Microprocessor Controlled SCR technology, the A77 Series Battery Charger / Battery Eliminator has ±0.25% DC voltage regulation from no load to full load over the specified input voltage, frequency and ambient temperature ranges. These chargers are available in DC output voltages of 24, 48, 130, and 260 VDC with DC output currents from 6 amps and above. Consult factory for any special input and output requirements not mentioned above. The La Marche A77 charger provides value added features such as AC/DC breakers, easy to read LCD display with text readout alarm LED’s and form “C” alarm contacts. Communication options are available to remotely monitor and control the charger using DNP3, Modbus, IEC 61850 and SNMP protocols. The SNMP option features easier and faster charger setup and configuration using a web browser. Designed to meet NEMA PE5 and UL 1012 safety standards.

La Marche A77 Standard Features:

• Microprocessor Controlled SCR Technology

• A77D - Filtered

• A77DE - Battery Eliminator

• Automatic AC Voltage Compensation

• AC & DC Surge Protection (MOV)

• AC & DC Breaker

• Temperature Compensation

• Adjustable (1-5 mV /cell/°C)

• Float / Equalize Mode Switch

• Digital Float and Equalize Adjustments

• Digital Current Limit Adjustment 50 to 110%

• ±0.25% DC Voltage Regulation

• SCR Failure Detection

• Load Sharing

• Master Equalize

• Over Temperature Protection

• LCD Display

• DC Voltage and Current

• Alarms

• Unit Temperatures

Alpine Power Systems is a value-added reseller of La Marche products. Alpine can provide DC Power System services on all La Marche products including engineering, installation, preventative maintenance, monitoring and recycling. Alpine provides services for data centers, telecom, healthcare, oil & gas and many other applications. Call our inside sales group at 877-993-8855 for assistance.