The Xantrex VX5A1400 is an intelligent, microprocessor-controlled battery isolator and dual-battery charging manager. Its primary function is to intelligently manage the charging of two separate battery banks (e.g., a starting battery and a house/auxiliary battery) from a single charging source (e.g., an alternator, battery charger, or solar controller).
Specifications
Parameter Specification
Model VX5A1400
Series Xantrex VX5 (Intelligent Power Management Series)
System Voltage 12 Volts DC
Maximum Continuous Charge Current 140 Amperes (A) Total Output (Combined output to all batteries)
Maximum Input Current Typically matches or exceeds the 140A output rating.
Charging Algorithm Multi-stage (Bulk, Absorption, Float) with temperature compensation (if sensor connected).
Battery Type Compatibility Programmable for Flooded, AGM, and Gel Cell batteries.
Isolation Method Solid-state electronic isolation.
Voltage Sensing Independent sensing of each battery bank voltage.
Low Battery Protection Isolates auxiliary loads if the starting battery voltage falls below a critical threshold.
Status Indicators (LED) Display for Power, Charging Mode (Bulk/Absorb/Float), Battery Status, and Faults.
Terminals Input: From charging source (Alternator/Charger). Output 1: To Battery 1 (e.g., Starting). Output 2: To Battery 2 (e.g., Auxiliary/House). Sensor: For optional temperature probe.
Wire Size Recommendation Requires heavy-gauge cable (e.g., 1/0 AWG or 50mm² or larger) for main power connections due to high current.
Mounting Surface mount in a dry, well-ventilated location.
Operating Temperature Typically -20°C to +50°C (with derating above 40°C).
Environmental Protection Enclosed design suitable for engine compartments or dry electrical bays.
Compliance Meets relevant marine (ABYC) and automotive standards. May have CE, cULus marks.