Forth Corporation Public Co., Ltd.
Tested energy meters of this manufacturer are listed below
| WO No | 70068026 | | TDT | | | Report No | 6330-10 (47 pages) | | Country | Thailand | | Type | A1800 | | Class (Wh) | 0,2s, 0,5s/C, 1/B & A | | Elements | 3-phase | | Wiring | 4-wire | | Connection | Transformer connected | | Technology | Static (electronic) | | Frequency | 50 or 60 | | Current | 1(10) | | Voltage | 58/100 - 240/415 | | Register | LCD | | Standards | IEC 62053-21, -22, -23 |
| WO No | 70068077 | | TDT | | | Report No | 6329-10 (42 pages) | | Country | Thailand | | Type | A1800 | | Class (Wh) | C, 1/B & 2/A | | Elements | 3-phase | | Wiring | 4-wire & 3-wire | | Connection | Direct connected | | Technology | Static (electronic) | | Frequency | 50 or 60 | | Current | 5(120) | | Voltage | 100/173 - 240/415 | | Register | LCD | | Standards | IEC 62053-21, -23 |
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