Littelfuse Smart Metering Solutions

Littelfuse Smart Metering Solutions help designers implement more reliable and safer smart meters. Littelfuse solutions for smart meters allow designers to bring Internet of Things technology to the key functions of a smart metering system.

Electricity Meter Block Diagram

Block Diagram - Littelfuse Smart Metering Solutions

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

Block Diagram - Littelfuse Smart Metering Solutions

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

Paskelbta: 2020-05-18 | Atnaujinta: 2024-06-25