A36D RECTIFIER/ POWER SUPPLY Controlled Ferroresonant Technology

The La Marche Model A36D Controlled Ferroresonant Rectifier/ Power Supply has many inherent advantages such as voltage regulation, high efficiency, high power factor and short circuit protection. These chargers provide adjustable voltage levels for floating or equalizing lead or nickel-cadmium cells, which can be done digitally through the LCD display. The equalize cycle is activated either manually through a switch on the front panel, or automatically scheduled. (adjustable through the menu). Steady state output voltage remains within ±0.5% of the setting from no load to full load and for AC input voltages within ±10% of the nominal input voltage. The model A36D is internally filtered to be no greater than 32dBrn (“C” message weighting) and 30 millivolts RMS for all conditions on input voltage and output load with or without batteries connected. This allows the A36D to be used as a battery eliminator.

Digital Controller with LCD Display
One Pole DC Output Breaker / Single Phase Units
Output Fusing / Three Phase Units
Automatic DC Voltage Regulation
Automatic AC Voltage Compensation
Float/Equalize Mode Switch
Equalize Timer
AC & DC Surge Protection (MOV’s)
AC Input Circuit Breaker
Remote Equalize and Sensing
Output Load Current Sharing
Internal Temperature Compensation
L. 1012, U.L. 1481
5-Year Full Warranty
10-Year Magnetics Warranty
Digitally Configurable Alarm System
Alarm Thresholds
Alarm Delays
Contact Operations (Latching/Non-latching))
Form “C” Relay Contacts
AC Power Failure
Summary Alarm
Low DC Voltage
Low Current
High DC Voltage
Open DC Protection
High DC Voltage Shutdown (HVSD)
Alarm Contacts Testing Capability to Confirm Functionality (via Front Panel or Remotely with Optional Communication Card)
Indicators
AC “ON”
Float and Equalize
Summary Alarm
Low DC Current
Overload Current Limit
End of Discharge
Low & High DC Voltage
High Voltage Shutdown
Open DC Protection

APPLICATIONS

Switchgear Applications. Provides reliable DC power for switchgear operations, ensuring safe and efficient control of electrical grids.

Process Control Systems. Supports industrial automation and control systems, maintaining stable power for critical monitoring and process adjustments.

Oil & Gas Exploration and Refining. Ideal for offshore platforms, drilling rigs, and refineries where uninterrupted DC power is required for control systems and safety mechanisms.

Substation DC Power Systems. Ensures consistent DC power for substations, protecting relays, circuit breakers, and communication systems.

Utility & Power Generation Plants. Supports power plants and utilities by maintaining backup DC power for relays, turbines, and grid control systems.

Uninterruptible Power Supply (UPS) Systems. Acts as a reliable charger in DC UPS systems to provide backup power during outages.

Data Centers & Telecommunications. Powers critical network infrastructure, ensuring uninterrupted operation for telecom towers, base stations, and server rooms.

Railway & Transportation Systems. Provides backup power for railway signaling, track-side equipment, and communication networks.

Industrial Battery Charging & Backup Systems. Used in industrial facilities to maintain battery banks for emergency power and backup supply.

Emergency & Backup Power for Critical Infrastructure. Provides continuous power to emergency lighting, security systems, and backup generators.

ADVANTGAES:

Exceptional Voltage Regulation (±0.5%). The A36D maintains a steady DC output within ±0.5%, regardless of load changes or ±10% AC input variation. This ensures consistent, clean power delivery to sensitive equipment, reducing the risk of system instability or equipment damage.

High Efficiency & Power Factor. The controlled ferroresonant design delivers high energy efficiency and a strong power factor, resulting in lower operating costs and reduced strain on the AC power source. Ideal for long-term performance in demanding industrial settings.

Dual Float/Equalize Charging with Timer and Remote Activation. The charger supports adjustable float and equalize voltage levels for different battery types, improving battery health and longevity. The equalize function can be triggered manually or automatically, and even remotely, providing flexible battery maintenance.

Advanced Digital Control & Monitoring. Equipped with a digital controller and LCD display, the A36D offers easy configuration, status visibility, and alarm management. This simplifies setup, enhances real-time monitoring, and supports predictive maintenance through alarm customization.

Comprehensive Protection & Compliance. Features like surge protection, circuit breakers, alarm testing, and fault indicators, along with UL 1012 and UL 1481 certifications, ensure system safety, reliability, and compliance with regulatory standards. Plus, the 5-year full warranty and 10-year magnetics warranty add peace of mind.