| 類型 | 電子式電能儀表 | 品牌 | 新藝、柳川、滬立 |
| 型號 | DDS791 | 基本電流 | 1.5(6)、2.5(10)、5(20)、10(40)、15(60)、5（50）、10（100）、5（100）（A） |
| 準(zhǔn)確度等級 | 1級或2級 | 參比電壓 | 110V -400V AC（V） |
| 電流倍率 | 20 | 顯示方式 | 計度器、液晶 |
| 頻率 | 50或60（Hz） | 電流 | 100（A） |
| 裝箱數(shù) | 20 |
Performance criteria:
IEC 62053-21
Accuracy cl 1
Protection against penetration
of dust and water IP51
Insulating encased meter of
protective cl Ⅱ
Specifications:
AC voltage withstand 2KV for 1 minute
Impulse voltage withstand
6KV – 1.2μS waveformBasic current (Ib) 5 A Maximum rated current (Imax) 50 A
Operational current range 0.25A - 50A
Over current withstand 1500A for 0.01s
Operational frequency range 50Hz ±10%Internal power consumption ≤2W / 10V
Test output flash rate (RED LED)
1600 impulses per kWh
Pulse output rate (pins 2 &3)
1600 pulses per kWh
Power supply indicator (Green LED)
Meter is connected and working OK
Consumption indicator (RED LED)
Flashing at load running
Dimensions
Height 88 mm
Width 75 mm
Depth 68 mm
Distance between
installation holes
63 mm (installation mode in front of board)Weight 0.2 Kg (net)
