PLZ-4W_Protection function
| Model | PLZ164W | PLZ334W | PLZ1004W | PLZ164WA | PLZ664WA |
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| Overvoltage protection (OVP) | Turns off the load at 110 % of the rated voltage |
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| Overcurrent protection (OCP) | 0.03 A to 36.3 A | 0.06 A to 72.6 A | 0.2 A to 220 A | 0.03 A to 36.3 A | 0.13 A to 145.2 A |
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| Or 110 % of the maximum current of each range |
| Overpower protection (OPP) | 0.1 W to 181.5 W | 0.3 W to 363 W | 1 W to 1100 W | 0.1 W to 181.5 W | 0.6 W to 726 W |
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| Or 110 % of the maximum power of each range Load off or limit selectable |
| Overheat protection (OHP) | Turns off the load when the heat sink temperature reaches 95 °C |
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| Undervoltage protection (UVP) | Turns off the load when detected. |
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| Reverse connection protection (REV) | By diode and fuse. Turns off the load when an alarm occurs. |
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