DD301/DD301a型单相电能表

Type DD301 is the meter with fine function and long service life.It is the new long sevice life meter with combined advanced design of L&G company in Swiss.It has high service life.The product conforms with international standard of IEC521-1988 and national standard of GB/T15283-1994.

DD301a single phase watt-hour meter is a mechanical inductive active watt-hour meter,whose rated frequency is 50HZ.Its inside core adopts type DD301.This product has high precision and steadiness,and can serve for long time

Main Technical Performance
●reference voltage:220V
●basic current:1.5（6）A，2.5（10）A，5（20）A，5（30）A，10（40）A，10（60）A，15（60）A，20（80）A。
●arruracy class:2.0
●starting current:＜0.5%Ib
●impact voltage test:1.2/50us时＞8KV
●alternating current voltage test:50Hz 1min2KV