Adjustable single-phase intelligent surge arrester/undervoltage protector 230 V AC (40 A)

Features: 1. This protector integrates overvoltage and undervoltage protection functions. 2. Its main function is to immediately cut off the power supply – thus protecting electrical equipment from damage – in the event of overvoltage, undervoltage, or overcurrent. Once the line voltage returns to normal, the protector automatically restores the current. 3. It is mainly used for overvoltage, undervoltage, or overcurrent protection in residential distribution circuits, or for the protection of single-phase electrical equipment. 4. It is suitable for single-phase systems (50/60 Hz) and is designed for users or loads with a rated current of 63 A or less. 5. Low power consumption and long mechanical life. Specifications: Condition: 100% Brand New. 230 V AC 50/60 Hz. Adjustable current from 1 to 63 A (default: 63 A) / from 1 to 40 A (default: 40 A). Overvoltage protection: 221 V – 300 V – Off (adjustable; default: 280 V). Overvoltage response time: 0.1 s – 10 s (default: 0.1 s). Undervoltage protection: 219 V – 150 V – Off (adjustable; default: 160 V). Undervoltage response time: 0.1 s – 10 s (default: 0.1 s). Overcurrent protection: 1 to 63 A (default: 63 A) / from 1 to 40 A (default: 40 A). Current response time: 0.1 s – 512 s (default: 5.0 s). No-fault reset time: 2 s to 512 s (default: 60 s). Power-on delay: 2 s to 255 s (default: 2 s). Power consumption: ≤ 2 W. Electrical/mechanical life: ≥ 4,000 cycles. Mounting: DIN rail. Operating environment: temperature: -25 °C to +40 °C; humidity: not specified; altitude: ≤ 2,000 m. Dimensions: approx. 81 × 36 × 60 mm. Package contents: 1 protective device. Notes: 1. Line conductors must comply with applicable standard current ratings; the load current must not exceed the maximum protection value of the device. 2. The neutral (N) wire must be correctly connected; a fuse must also be installed. The neutral (N) wire inside the device is directly connected and does not have a disconnect function. 3. Do not touch live parts when the device is switched on to avoid the risk of electric shock. 4. This protector does not provide short-circuit protection or insulation. These functions must be activated using the small switch on the front panel. When working on the circuit, disconnect the power using the switch on the front panel. Without a miniature circuit breaker, a short circuit occurring at the input or output terminals of the protector will not be interrupted. 5. Because the protector has an automatic reset function, you must immediately disconnect the electrical load and inspect the circuit after it has been activated and the power has been disconnected. Otherwise, the protector will attempt to reconnect the load repeatedly, which will reduce its service life. Frequent reset operations can damage the electrical device and the protector itself. 6. Caution! If the duration of a power interruption due to undervoltage exceeds 0.3 seconds, the protector will remain disconnected after the power interruption. (The microcontroller stops operating 0.3 seconds after a power interruption.) 7. If an overcurrent occurs more than five times within a specified time period, the power supply will lock out and not restart automatically. You must manually press the "SET" button to unlock it and restore power; this mechanism effectively prevents hardware damage that could result from frequent power cycles caused by persistent overcurrents.