Introducing the Xantrex C40 PWM Charge Controller — a compact, intelligent solution engineered to protect and extend battery life while maximizing solar or DC charging efficiency. With pulse width modulation (PWM), multi-stage charging, and temperature compensation, the C40 delivers precise, battery-friendly power management for demanding off-grid or mobile setups.
Key benefits include silent operation, solid-state reliability, and field adaptability across a range of systems. The C40 supports PV charging, diversion, and DC load control, making it a versatile controller for virtually any DC charging source.
Configurable for 12 V, 24 V, or 48 V operation, these C Series controllers can be tuned for PV battery charging, DC load control, or DC diversion, so you can tailor performance to your battery bank and application. A remote display (available separately) provides cumulative amp-hours for easy monitoring and management.
Durable and safe, the C40 features electronic protection against short-circuit, overload, and over-temperature conditions. Built to endure harsh environments with conformal-coated boards and a powder-coated enclosure, it’s ready for challenging installations.
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PWM multi-stage charging with temperature compensation to optimize battery life and maintain performance across temperatures.
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Field-adjustable voltage and battery set points for precise charging profiles.
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Automatic nighttime disconnect to prevent battery drain when not charging.
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Two-year standard warranty for peace of mind.
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Negative-ground and ungrounded system compatibility for flexible installations.
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Versatile controller for PV charging, diversion, and DC load control on virtually any DC source.
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12 V, 24 V, or 48 V operation and robust protection for hostile environments.
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Remote display option with cumulative amp-hours for easy monitoring.
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Silent microprocessor control delivering high performance with no moving parts.
Whether you're powering a solar setup, a battery bank, or alternative DC power sources, the Xantrex C40 PWM Charge Controller delivers reliable charging, smart protection, and straightforward control—keeping your batteries healthier, longer.