Electricity Meter Block Diagram

1. MOV: Ultra MOV, CIII, TMOV
Cartidge fuse: 215 & 514 Series
TVS diode: SMAJ, SMBJ
Opto-isolator: CPC1303, LIA130
NTC: MELF Style, End-Banded Chip
FET: IXTP3N100P, IXTP4N65X2
SiC FET: LSICMO170E1000
Pre-regulation FET: IXTY2N65X2
2. ESD: SESD0402x
Opto-isolator: CPC130x, CPC590x
Sidactor SEP, SESD: SEP0xx, LC03-3.3
Solid state relay: PLA192, CPC139x, CPC19xx
3. Hall-effect sensor: MX887DHTTR
Reed switch: MDSR-10
4. Solid state relay: PLA192, CPC139x, CPC19xx
Fuse or SSR: Cartridge 216 Series, CPC15xx
TVS, MOV: SMCJ, SM7
5. RFID: NCD1300
Gas and Water Meter Block Diagram

1. Fuse PPTC: Atex 259 / 304, 437 Series, Femto, Nano Series
2. SESD Array: SESD0402x
Opto-isolator: CPC130x, CPC5902 / CPC5903
Sidactor, Diode array: SEP0xx, LC03-3.3
Solid state relay: LCA182
3. NTC: MELF style, End-banded Chip, Custom Sub-assembly
Reed switch: MDSR-10
4. Reed switch: 59166, MDSM-4
5. Solid state relay: LCA712
6. RFID: NCD1300
Applicable Standards for Electricity Meters
• UL 2735: Safety standard for Electric Utility Meters
• IEC 62052 Series: Electricity Metering Equipment (AC)
• Part 11: Metering Equipment
• Part 31: Product Safety Requirements and Tests
• IEC 62059 Series: Dependability of Electrical Metering Equipment
• IEC 62053 Series: Active Energy Electrical Metering Equipment – Accuracy
• Electrostatic Discharges to IEC 61000-4-2 Contact and Air Discharges
• Fast Transient Burst Test to IEC 61000-4-4
• Fast Transient Surge Test to IEC 61000-4-5