Chris Products PM3-75-MBALK 75 Amp Main Board Assembly for RV Power Converter

The Chris Products PM3-75-MBALK is a 75 amp replacement main board assembly designed for PM3-12V LK-series power converters commonly found in RV power distribution centers. This lower tray converter section converts 110V AC power to 12V DC power for charging batteries and powering 12-volt equipment.

Key Features:

• 75 amp maximum continuous output for high-demand RV applications
• 3-stage smart charging technology with bulk, absorption, and float modes
• Adjustable output voltage from 13.0V to 16.5V DC in fixed mode
• Lithium battery compatible when used in fixed output mode
• Electronic current limiting with automatic overload and short-circuit protection
• Compatible with lead-acid, AGM, and LiFePO4 battery types
• Direct replacement for WFCO 8900 series MBA and other lower tray converters

This main board assembly provides clean, stable DC power ideal for RV electrical systems. The 3-stage smart charging automatically adjusts voltage based on battery state to ensure fast charging while maximizing battery lifespan. Installation should be performed by a certified electrician. Main board assembly only—power distribution panel sold separately.