WFCO Auto-Detect 55A Replacement Main Board Assembly - WF-8955-AD-MBA

The WFCO WF-8955-AD-MBA Main Board Assembly is a powerful and easy-to-install replacement for your RV’s power converter section. Designed for use with the WF-8955-AD Series Power Centers, this assembly features WFCO’s patent-pending Auto-Detect technology, which intelligently recognizes and adjusts charging for both lithium ion and lead acid batteries—no manual switching required.

Whether you're upgrading or replacing, installation is quick and simple with just two screws, three AC wires, and two DC wires. Built-in safety features like reverse polarity protection and automatic shutoffs for overloads, short circuits, and high temperatures provide reliable, worry-free performance. With multi-stage charging and precise microprocessor control, this board extends battery life and delivers consistent power to your RV systems.

Key Features:

• Replaces lower power converter section in WF-8955-AD Series Power Centers
• Auto-Detect Technology: Recognizes and adapts to lithium ion and lead acid batteries
• Quick Installation: Installs in under 10 minutes with minimal tools
• Smart Charging Modes: 3-stage and 2-stage charging options for optimal battery performance
• Built-In Protections: Overload, over-temperature, over-voltage, and reverse polarity
• Quiet Operation: Variable-speed cooling fan adjusts to load demand
• Certified Safe: UL and cUL listed, FCC Class B compliant

Specifications:

• Model: WF-8955-AD-MBA
• Input Voltage: 105–130 VAC, 60 Hz
• Max Input Current: 11A
• Output Voltage Range: 13.2 – 14.4 VDC
• Rated Output Current: 55A
• Charging Modes: 3-stage (Bulk, Absorption, Float) / 2-stage intelligent charge
• Battery Compatibility: Lead Acid (LA), AGM, Lithium Ion
• Power Output: 940W max, 750W continuous
• Efficiency: >80% under 70% load
• Cooling: Variable speed fan
• Protections: Overload, short circuit, over-temperature, reverse polarity
• Certifications: UL458, cUL, FCC Class B
• Dimensions: 7.1" W x 3.9" H x 9.6" D
• Weight: 3.46 lbs (1.57 kg)
• Firmware: V1.21A
• Environmental Tolerance: 20–90% non-condensing humidity

California Prop 65 Warning:

This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information, go to www.P65Warnings.ca.gov