| 名稱：LCD+MPPT太陽能控制器 | 產品用途：太陽能發電 | 48V：40A 50A 60A |
| At the solar terminal | At the battery terminal | At the load terminal |
Battery connected With correct polarity | Unrestricted | Normal operation | Unrestricted |
Battery connected with wrong polarity | Unrestricted | Unrestricted Acoustic Warning | Unrestricted |
Reverse polarity | Yes, not at 24V, or36v 48V ,or72v 96Vsystem voltage | Yes, if only the battery is connected. Acoustic Warning | Load output is protected, but loads might be damaged. |
Short circuit | Unrestricted | Unrestricted CAUTION: Battery must be protected by fuse. | Unrestricted |
Over current | No protection | ……… | Controller switches off load terminal. |
Thermal overload | No protection | ……… | ……… |
No connection | Unrestricted | Unrestricted | Unrestricted |
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