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Xantrex C40 PWM Charge Controller
Xantrex C40 PWM Charge Controller
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List Price: $159.00
Price: $129.00


Product Code: C40

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The Xantrex C40 is a 40 amp multi-function DC controller that is field configurable for 12V, 24V, or 48V operation. The DC controller is a critical component in any solar, wind or hydro power generation system and protects the batteries from over-discharge and over-charge conditions.

The Xantrex C40 charge controller can be used as a charge, diversion, or load controller. In Charge Control Mode the C40 can be used as a PWM charge controller to control how the batteries are charged by the DC source (solar, wind, or hydro). It uses a 3-stage charging protocol to maintain battery voltage at bulk and/or float levels, while offering automatic temperature compensation and equalization capabilities. It may also be used as a Diversion Controller to divert any excess energy to a diversion load in PV, wind, or hydro installations, and in the case of a wind or hydro generator, help prevent over-spin damage. In Load Control Mode the C40 acts as a Load Controller, preventing damage to the battery from over-discharge during periods of poor charging or excessive loads.

At its core, the C40 controller has a powerful microprocessor, which increases system performance and maximizes battery life. It comes with a standard multi-color charge status LED face plate and is also fully solid state and operates silently. Whatever the charging source, the Xantrex C40 controller is sure to meet your DC controller needs.

  • Product Features

    • PV charge, diversion, and load controller functionality
    • Solid-state Pulse Width Modulated (PWM) charging process with three-stage control
    • Temperature compensated charging
    • Manual or automatic equalization to maximize system performance and increase battery life
    • Can be configured for 12, 24, and 48 volt applications
    • Field adjustable voltage and charge set points
    • Automatically disconnects from the battery at night
    • Compatible with negative ground and ungrounded systems
    • Multi-color LED indicators with easy to read mode/status label
    • Tolerance to hostile environments with conformal-coated boards and powder-coated enclosure
    • Meets NEC and other international controller specifications
    • UL1741 and CSA 107.1-01 listed
  • Protection Features

    • Electronic overload and short-circuit protection with automatic and manual reset capability
    • Over-temperature protection for the electronic circuitry when used in hot environments
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