ANMA System Building

Identity

category	smart_meters
manufacturer	Carlo Gavazzi
model	EM330
region	GLOBAL
variant	—

Electrical

accuracy_class	Class 1 (kWh) according to EN62053-21; Class B (kWh) according to EN50470-3 суперечливе EM330 Three-phase energy meter - datasheet
auxiliary_supply	H order code: 100-240 V ac/dc auxiliary supply EM330 Three-phase energy meter - datasheet
ct_secondary_current_a	5 EM330 Three-phase energy meter - datasheet
ct_secondary_current_max_a	6 EM330 Three-phase energy meter - datasheet
current_range_a	Rated 5 A, Imax 6 A (5(6) A); Imin 0.25 A; start-up current 10 mA
display	Backlit LCD, 3 rows by 8-digit each; energy 8-digit, variables 4-digit EM330 Three-phase energy meter - datasheet
display_type	Backlit LCD, 3 rows of 8 digits, 7 mm high, with integrated touch keypad (DOWN / ENTER / UP)
ethernet_port_count	0 EM330 Three-phase energy meter - datasheet
frequency_hz	45 to 65
humidity_pct	0 to 90 non-condensing at 40 degC operating; <90 non-condensing at 40 degC storage
measured_phases	3-phase 3- or 4-wire; 2-phase 3-wire; 1-phase 2-wire
measurement_accuracy	current from 0.2In to Imax: ±(0.5%RDG); voltage ±(0.5% RDG) phase-neutral, ±(1% RDG) phase-phase суперечливе EM330 Three-phase energy meter - datasheet
measurement_directions	imported and exported energy, configurable to imported only EM330 Three-phase energy meter - datasheet
measurement_system	3-phase (3 or 4-wire), 2-phase and 1-phase configurations supported EM330 Three-phase energy meter - datasheet
meter_type	CT-operated three-phase energy meter with 5(6) A secondary current inputs EM330 Three-phase energy meter - datasheet
phase_count	3 EM330 Three-phase energy meter - datasheet
physical_interfaces	['RS485 (option S1)', 'M-Bus (option M1)', 'pulse output (option O1)'] EM330 Three-phase energy meter - datasheet
power_consumption	<= 1 W, <= 8 VA (auxiliary supply 100-240 V ac/dc +/-10%)
pulse_output	Open-collector PNP static output; pulse weight 1, 10, 100 or 1000 pulses/kWh set automatically from the CT x VT ratio; pulse rate 1-1500 (Ton 30 ms) or 1-500 (Ton 100 ms)
rated_voltage_v	400-480 V L-L ac / 230-277 V L-N ac (AV5 range code) EM330 Three-phase energy meter - datasheet
rs485_port_count	1 on the S1 order-code option EM330 Three-phase energy meter - datasheet
supported_ct_ratios	CT x VT ratio max. 1000 EM330 Three-phase energy meter - datasheet
voltage_range_v	400 to 480 V L-L ac (230 to 277 V L-N)

Physical / mechanical

dimensions_mm	54 x 90 x 63
weight_kg	0.240 (packing included)

Installation

mounting

DIN-rail, 3-DIN module (54 mm)

Environment

operating_temperature_c	-25 to +65 (X option); -25 to +55 (PF option) EM330 Three-phase energy meter - datasheet
operating_temperature_range_c	-25 to +55 (PF/MID option); -25 to +65 (X option)
storage_temperature_range_c	-30 to +80

Interfaces & connectors

communication_protocol	RS485 Modbus RTU (slave) at 9.6/19.2/38.4/57.6/115.2 kbaud; M-Bus per EN 13757-1 at 0.3/2.4/9.6 kbaud; data refresh time 1 s
documented_ports	[{'port_role': 'RS485', 'port_label_from_manual': 'RS485 Modbus (order-code option S1)', 'port_type': 'screw terminals', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'quantity': 1, 'document': 0, 'page': 'Communication interfaces', 'quote': 'Communication Interfaces \| RS485 Modbus (optional S1), M-Bus (optional M1), pulse output (optional O1)'}, {'port_role': 'CT', 'port_label_from_manual': 'Current inputs (CT connection)', 'port_type': 'screw terminals', 'direction': 'input', 'electrical_domain': 'communication', 'quantity': 3, 'document': 0, 'page': 'Inputs', 'quote': 'CT Connection \| 5(6) A secondary current'}]
protocols	['Modbus RTU (order-code option S1)', 'M-Bus (order-code option M1)'] EM330 Three-phase energy meter - datasheet
wifi	False EM330 Three-phase energy meter - datasheet

Protection

protection_degree_ip

IP51 front; IP20 screw terminals

Certifications

certifications

EN 62052-11 / EN 62053-21 (X option); EN 50470-1 / EN 50470-3 (PF option); IEC/EN 61557-12; CE; MID (PF option only); cULus (UL 61010-1)

Документи

datasheet EM330 Three-phase energy meter - datasheet

Зафіксовані конфлікти

electrical.measurement_accuracy Review required

current from 0.2In to Imax: ±(0.5%RDG); voltage ±(0.5% RDG) phase-neutral, ±(1% RDG) phase-phase — stored value

Voltage +/-(0.5% RDG) phase-neutral, +/-(1% RDG) phase-phase; current +/-(0.5% RDG) from 0.2 In to Imax; frequency +/-(0.2% RDG) — incoming package

Detected during import deep-enrich-pass2-2026-09-batch11

electrical.accuracy_class Review required

Class 1 (kWh) according to EN62053-21; Class B (kWh) according to EN50470-3 — stored value

Active energy: class 1 per EN 62053-21 and class B per EN 50470-3; reactive energy: class 2 per EN 62053-23 — incoming package