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The ST7-50A 12V/24V Automatic Switch Solar Controller is a high-efficiency PWM charge controller for 12V and 24V systems. It automatically detects system voltage, ensuring seamless operation without manual adjustment. With a 50A max charge and discharge current, it handles high-power solar setups effectively.
To protect the battery, it cuts off charging at 16.5V (12V) and 33V (24V) to prevent overcharging and disconnects the load at 11V (12V) and 22V (24V) to avoid deep discharge. It reconnects automatically at 12.6V (12V) and 25.2V (24V) once the battery recovers.
Temperature compensation adjusts charging based on climate, while low static current (<45mA) and minimal voltage drop (<200mV) ensure efficient performance. Supporting up to 4mm² wires, its compact 22513768mm design makes it ideal for residential and commercial solar systems, providing reliable and efficient energy management. In addition to PWM Solar Charger Controller, we also have other products such as MPPT Solar charaer Controller, Solar Panel cleaning Tools, etc. If you are interested, you are welcome to purchase.
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Model
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ST7-50A
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Rated voltage
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12V/24V Automatic voltage recognition
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Max charge current
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50A
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Max discharge current
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50A
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Full charge cut
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16.5V/33V recognize tacitly
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Low voltage cut
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11/22V Recognize tacitly
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Low voltage restore
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12.6V/25.2V Recognize tacitly
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Temperature compensation
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-3mv/℃/cell
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Static current
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≤45mA
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Voltage drop
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<200mv
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Wire area max
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4mm²
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Size
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225*137*68mm
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Main Product:
Power Inverter,
Car Inverter,
Solar Inverter,
Solar Charge Controller,
Portable Power Station,
Hybrid Inverter
