DD862 single phase watt-hour meter is used for measuring electric power in single-phase 50Hz or 60Hz AC circuit. It should be fixed to use with the limited working temperature of -30~+55°C. The relative humidity should not exceed 85% and without the corrosive gas and salty spray in the air. It is designed as per national standard.Structure:1. Case: steel base or bakelite base, ABS or transparent AS cover2. Bearing: double-jewel bearing or magnetic bearing3. Register: wheel type, five or six digitals4. Breaking component: Al, Ni, Co double poles magnet5. Driving component: voltage steal core used the unitary rivet pressing type6. Reasonable design, stable and reliable performance, 4 times load7. Can add some anti-stealing function on customer's opinionTechnical parameter: 1) Accuracy class: class 22) Reference voltage: 110V, 120V, 220V, 230V, 240V3) Frequency: 50 or 60Hz4) Basic (max. rated) current: 1.5 (6) A, 2.5 (10) A, 5 (20) A, 10 (40) A, 15 (60) A, 20 (80) A, 30 (120) A5) Voltage circuit consumption: ≤2W, 8VA6) Current circuit consumption: 2.5VA7) Basic rotating speed: 13.2r/min8) Torque: 4.0x10-4 N.m9) Weight of meter: 1.5kg producing area:China