ESE Power-Quality Monitor

Full Electrical Parameters

Full A/B/C-phase parameter monitoring: active power, reactive power, apparent power, power factor, forward active energy, voltage-current phase angle, voltage deviation, etc.

Full Electrical Energy Metering

Comprehensive metering of A/B/C-phase voltage, frequency, A/B/C-phase current, A/B/C-phase active/reactive power, total active/reactive power, A/B/C-phase apparent power, etc.

Digital Input

Supports 2 digital inputs (DI) for switch status monitoring and linkage control.

Three-Phase Unbalance Analysis

A/B/C-phase voltage/current phase angle, voltage deviation, frequency deviation, zero-sequence current unbalance, negative-sequence voltage unbalance, zero-sequence current unbalance.

Alarm Query Management

Relay output supports linkage control; standard physical buttons support local query, display and settings; RS485 communication with Modbus protocol.

High-Accuracy Measurement

Class 0.5 accuracy by default; with split-core sensors up to Class 0.2s; current monitoring range 0-6000A.

Selection Table Model Power Supply Display Current Voltage Other Electrical Parameters Digital Input Relay Output RS485 MODBUS ESE-12111-R DC5V OLED 0~5A 220/380V All electrical parameters 2 1 Supported ESE-12121-R DC5V OLED 0~100A 220/380V All electrical parameters 2 1 Supported ESE-12131-R DC5V OLED 0~400A 220/380V All electrical parameters 2 1 Supported ESE-12141-R DC5V OLED 0~600A 220/380V All electrical parameters 2 1 Supported ESE-22111-R AC220V OLED 0~5A 220/380V All electrical parameters 2 1 Supported ESE-22121-R AC220V OLED 0~100A 220/380V All electrical parameters 2 1 Supported ESE-22131-R AC220V OLED 0~400A 220/380V All electrical parameters 2 1 Supported ESE-22141-R AC220V OLED 0~600A 220/380V All electrical parameters 2 1 Supported

Basic Parameters

Parameter Specification Operating voltage DC 4.75~5.25V / AC 180~250V Operating temperature -20℃ ~ 60℃ Weight 150g Enclosure material Thermoplastic material UL94V0 Mounting method Standard 35mm DIN rail Communication RS485 Power consumption ≤2W Operating humidity <95% Dimensions 36×110×69mm Protection rating IP20 Display OLED Communication protocol Modbus protocol

Monitoring Functions

Parameter Specification Voltage (AC) Rated 220V/380V, overload 1.2x/2x (1s), accuracy Class 0.5/0.2s Current (AC) Rated 5A/100A/400A/600A, overload 1.2x/2x (1s), accuracy Class 0.5/0.2s Frequency 45~65Hz, accuracy 0.01Hz Active energy Accuracy Class 1 Reactive energy Accuracy Class 2 Three-phase unbalance Zero-sequence and negative-sequence unbalance 2nd-31st harmonics Accuracy ±1% Digital input Dry contact input, built-in power supply Digital output Relay output, AC250V/3A DC30V/3A, normally open contact