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| ชื่อแบรนด์: | HMD |
| หมายเลขรุ่น: | 1545615641514 |
| MOQ: | 1 |
| ราคา: | 955 |
| เวลาจัดส่ง: | 7 วัน |
| เงื่อนไขการชำระเงิน: | ที/ที, เวสเทิร์นยูเนี่ยน |
| Parameter | Description / Recommendation |
| 1. Rated Voltage and System Type | Define AC 220 V, AC 380 V, or DC 48 V/110 V systems. Specify TN, TT, IT, or TN-S earthing system. |
| 2. Surge Protection Level | Select Class I, II, or III SPD according to installation location (main distribution, subpanel, terminal). |
| 3. Maximum Discharge Current (Imax) | Typical ranges: 40 kA – 100 kA per phase. Choose based on lightning density and system sensitivity. |
| 4. Monitoring Function | Optional remote signal output, RS485/Modbus communication, or cloud-based status reporting. |
| 5. Power Distribution Design | Specify number of incoming/outgoing circuits, breakers, and control relays. |
| 6. Enclosure Type and Material | Common sizes: 600 × 500 × 250 mm to 1200 × 1000 × 400 mm. Materials: cold-rolled steel, galvanized steel, or stainless steel. |
| 7. Installation Environment | Indoor or outdoor use; define IP rating (IP54 / IP65 / IP67) and ventilation requirements. |
| 8. Cable Entry and Termination | Top/bottom entry options; ensure compatibility with site wiring layout. |
| 9. Indication & Alarm System | Visual indicator lights (SPD status, fault alarm) or sound-light alarm units. |
