CHINT XJ3-D Реле защиты последовательности фаз

XJ3-D is a multi-functional three-phase power protection device widely used in AC 380V power systems. Обеспечивает четырехкратную защиту трехфазных асинхронных двигателей и цепей от обрыва фазы., обращение фазы, перенапряжение, и пониженное напряжение, предотвращение повреждения оборудования и несчастных случаев, вызванных ненормальным электропитанием.

Основные функции & Функции

Функция защиты	Technical Description	Рабочий механизм
Phase Failure Protection	Detects loss of any phase in three-phase power	Upon detection, the relay’s normally closed contact opens, cutting power to the contactor coil
Phase Sequence Protection	Identifies phase sequence (normal/reverse) of three-phase power	Once phase sequence is registered, load startup is inhibited if sequence changes; phase failure/reversal LED illuminates
Защита от перенапряжения	Protection voltage adjustable from 380V to 460V	Operating time adjustable 1.5s–4s; control circuit opens on overvoltage
Защита от пониженного напряжения	Protection voltage adjustable from 300V to 380V	Operating time adjustable 2s–9s; control circuit opens on undervoltage

Особенности продукта:

Multi-mode fault indication (three LEDs for phase reversal/failure, перенапряжение, пониженное напряжение)

Reliable performance, wide application range, easy to use

Компактный размер, convenient DIN-rail mounting

| Соответствует GB/T 14048.5

Технические параметры

Элемент	Спецификация	Примечания
Rated control supply voltage	380 В переменного тока, 50/60Гц	Direct three-phase power supply
Overvoltage protection range	380V–460V (регулируемый)	Factory default approx. 420В
Undervoltage protection range	300V–380V (регулируемый)	Factory default approx. 340В
Overvoltage operating time	1.5s–4s (регулируемый)	Time delay to avoid misoperation
Undervoltage operating time	2s–9s (регулируемый)	Time delay to avoid misoperation
Phase failure operating time	≤2s	Fast response
Phase sequence operating time	≤1s	Fast response
Contact rating	АС-15: 220V/5A, 380V/3A	Control circuit load capacity
Размеры	Приблизительно. 45×75×105mm	Standard DIN-rail size
Монтаж	DIN-rail mounting	Complies with EN 50022

Принцип работы

The XJ3-D achieves comprehensive protection via internal voltage detection, phase detection, and time-delay circuits:

Voltage detection: Monitors three-phase voltage amplitude in real time and compares with set over/undervoltage thresholds
Phase detection: Analyzes phase relationship to judge correct sequence and phase loss
Logic judgment: Triggers time delay (over/undervoltage) or direct protection (phase failure/reversal) when abnormality is detected
Protection action: Internal relay operates; normally closed contact opens, cutting power to downstream contactor coil and de-energizing the main circuit

LED Status Indication:

Normal operation: All three LEDs off (faint glow of phase reversal/failure LED under slight unbalance is normal)

Phase failure / reversal: Phase reversal/failure LED on

Перенапряжение: Overvoltage LED on

Пониженное напряжение: Undervoltage LED on

Электропроводка & Установка

4.1 Standard Terminal Definition

Terminal No.	Функция	Wiring Description
1, 2, 3	Three-phase power input	Connect to L1, Л2, L3 (380В); any sequence allowed, auto-learn on first power-on
5, 6	Normally open (НЕТ) контакт	Open under normal protection, closed on fault
7, 8	Normally closed (Северная Каролина) контакт	Closed under normal protection, open on fault (commonly used for contactor coil control)
9	Common terminal	Used with terminals 5 и 7

4.3 Примечания по установке

Must be installed by qualified personnel in strict accordance with wiring diagrams

| Install in dry, ventilated areas free of corrosive gas; ambient temperature -5℃ ~ +40℃

If load fails to start after correct wiring, swap any two phases to re-learn phase sequence

Regularly check terminal tightness to prevent poor contact

Brands & Выбор

Main Brands: Вкусный, ЧИНТ, People Electric, Taihua Electric, и т. д..

Selection Guidelines:

Confirm control voltage is three-phase AC 380V
Select appropriate contact rating based on load type
Choose XJ3-D (multi-function) if over/undervoltage protection is required
Choose simplified models such as XJ3-G1 if only phase failure and phase sequence protection are needed
Поиск неисправностей

Fault Symptom	Возможные причины	Поиск неисправностей
Phase reversal/failure LED always on	1. Incorrect phase sequence	1. Swap any two power lines
	2. One phase missing	2. Check three-phase supply
	3. Ослабленная проводка	3. Затяните клеммы
Overvoltage LED always on	1. Excessively high supply voltage	1. Measure line voltage
Overvoltage LED always on	2. Overvoltage threshold set too low	2. Adjust overvoltage potentiometer
Undervoltage LED always on	1. Low supply voltage	1. Measure line voltage
Undervoltage LED always on	2. Undervoltage threshold set too high	2. Adjust undervoltage potentiometer
Cannot reset after protection	1. Power abnormality not resolved	1. Restore power then repower
Cannot reset after protection	2. Internal protector fault	2. Replace the unit

As a mature multi-function three-phase power protection device, the XJ3-D effectively prevents motor burnout caused by phase failure, reversal, перенапряжение, и пониженное напряжение. It is widely used in control circuits for pumps, фанаты, компрессоры, machine tools, and other three-phase equipment, making it an indispensable component in industrial automation systems.

Сравнение моделей & Price Guide for Phase Sequence Protectors (Various Brands)

Below is a comparison of mainstream domestic and imported phase sequence protectors, focusing on models equivalent to the XJ3-D (four-fold protection: обрыв фазы, sequence, перенапряжение, пониженное напряжение), with market price ranges and key differences for easy selection and procurement.

Domestic Brands -Model Comparison & Prices (April 2026)

1.1 Core Function Comparison

Бренд	Multi‑function Type (Phase failure + Sequence + Перенапряжение + Пониженное напряжение)	Базовый тип (Phase failure + Sequence)	Примечания
ЧИНТ	XJ3-D AC380V	XJ3-G AC380V	XJ3-5 with base
Вкусный	XJ3-D AC380V (XJ3D380)	XJ3-G AC380V (XJ3G380)	Fully compatible with CHINT, same mounting size
PEOPLE	XJ3-D AC380V	XJ3-G AC380V	Slightly lower price
Taihua	XJ3-D AC380V	XJ3-G AC380V	Cost-effective for bulk purchase
Naidian	NDX-D AC380V	NDX-G AC380V	Fully XJ3-series compatible

1.2 Price List (CNY)

Бренд	Модель	Official Store Price	Оптовая цена	Розничная цена (Taobao)	Функции
ЧИНТ	XJ3-D	72.27–108.82	30–40	38–50	Stable, high market share
ЧИНТ	XJ3-G	40–50	25–35	28–38	Базовая защита, экономичный
Вкусный	XJ3-D	79.8	32–42	40–55	Adjustable over/undervoltage
Вкусный	XJ3-G	40.4	22–30	25–35	Высокая цена-качество
PEOPLE	XJ3-D	65–80	28–38	35–45	Moderate price, надежный
PEOPLE	XJ3-G	35–45	22–30	25–32	Basic function, affordable

Imported Brands -Model Comparison & Prices

2.1 Equivalent Models to XJ3-D

Бренд	Multi‑function Type	Базовый тип	Ценовой диапазон (CNY)
Шнайдер	RM22TG20 (with over/undervoltage)	RM22TG20 (базовый)	216–350
АББ	CM-PVS.41S (voltage monitoring)	CM-PFE / CM-PFS.S	335–799
Carlo Gavazzi	DPA51CM44 (multi-function)	DPA51CM44 (базовый)	180–300
Сименс	3UG4512-1AW30	3UG4511-1AW30	280–450

2.2 Key Features of Imported Models

Schneider RM22TG20: 208-480ВАК, global voltage, 2CO contacts, response ≤1s

ABB CM-PVS.41S: Phase imbalance protection, adjustable delay, for precision equipment

Карло Гавацци DPA51CM44: DIN-рейка, Светодиодная индикация, adjustable thresholds, best value among imports

Siemens 3UG4512: High integration, PLC communication, for high-level automation

Справочник по выбору & Примечания

3.1 Руководство по применению

Приложение	Recommended Type	Причина
General three-phase motors (насосы, фанаты)	XJ3-G / XJ3-D	Sufficient basic protection, экономичный
Precision equipment (CNC, компрессоры)	XJ3-D / imported multi‑function	Over/undervoltage protection prevents damage
Non‑reversible equipment (лифты, краны)	Must include phase sequence protection	Prevents reverse rotation hazards
Unstable grid areas	XJ3-D / imported multi‑function	Protects against voltage fluctuations

3.2 Price Factors

Функция: Multi-function models (XJ3-D) cost ~30-50% more than basic types (XJ3-G)
Бренд: Imported units are 3-5× more expensive than domestic
Channel: Official > retail > wholesale
Quantity: 10%-20% discount for bulk orders (≥10 pcs)

3.3 Compatibility Notes

All XJ3 series use DIN-rail mounting (В 50022), identical dimensions

Same terminal layout: 1/2/3 = three-phase input; 7/8 = NC contact

Direct interchangeable among domestic XJ3 models; verify size/wiring for imports

Краткое содержание & Предложения по закупкам

Бюджет	Рекомендуемая модель	Приложение
Низкий (≤50 CNY)	ЧИНТ / Вкусный / PEOPLE XJ3-G	General motor protection
Середина (50–100 CNY)	ЧИНТ / Delixi XJ3-D	Most industrial applications
Высокий (≥200 CNY)	Schneider RM22TG20 / ABB CM-PVS.41S	Precision equipment & critical lines

Phase Sequence Protector Model List

Below is a list of mainstream models functionally equivalent to the XJ3-D (обрыв фазы + sequence + перенапряжение + пониженное напряжение), categorized by brand with key parameters and April 2026 price ranges for quick selection.

Domestic Mainstream Models (380 В переменного тока)

1.1 Multi-function Type

Бренд	Модель	Ключевые параметры	Цена (CNY)	Примечания
ЧИНТ	XJ3-D AC380V	Overvoltage 380–460V, undervoltage 300–380V, contact 5A/220V	38–108	Official: 72.27–108.82
ЧИНТ	XJ3-D-40 AC380V	With base, same as XJ3-D	45–120	Easy replacement
Вкусный	XJ3-D AC380V	Overvoltage delay 1.5–4s, undervoltage 2–9s, ВЕЛ	40–79.8	Official: 79.80
PEOPLE	XJ3-D AC380V	Phase failure ≤2s, sequence ≤1s, DIN-рейка	35–80	Lower price
Taihua	XJ3-D AC380V	XJ3 compatible, adjustable thresholds	32–65	Bulk-friendly
Naidian	NDX-D AC380V	Same function as XJ3-D	30–60	Отечественная альтернатива
ЧИНТ	NJB1-X	Sequence + failure + imbalance, 380–480V	45–90	For unstable voltage

1.2 Базовый тип

Бренд	Модель	Ключевые параметры	Цена (CNY)	Примечания
ЧИНТ	XJ3-G AC380V	Phase failure/sequence, 3A/380V	28–50	Official: 40–50
Вкусный	XJ3-G AC380V	Failure ≤2s, sequence ≤1s	25–40.4	Official: 40.40
PEOPLE	XJ3-G AC380V	DIN-рейка, ВЕЛ	25–45	Экономичный
Вкусный	XJ3-2 AC380V	Simplified sequence + failure	22–35	Basic circuits
Вкусный	XJ3-5 AC380V	Failure + sequence + imbalance (7–10%)	30–50	With imbalance protection

Imported Models (Equivalent to XJ3-D)

2.1 Multi-function Type

Бренд	Модель	Ключевые параметры	Цена (CNY)	Функции
Шнайдер	RM22TG20	208–480VAC, 2СО, ≤1s	216–350	22.5ширина мм
Шнайдер	RM4TG20	Same as RM22TG20	180–280	Localized version
АББ	CM-PVS.41S	208–440V, imbalance, adjustable delay	335–799	High precision
Carlo Gavazzi	DPA51CM44	380В, регулируемый, ВЕЛ	180–300	Fast response
Сименс	3UG4512-1AW30	380В, over/undervoltage + failure + sequence, ПЛК	280–450	High integration
Шнайдер	RM22TR33	Three-phase monitoring + over/undervoltage + imbalance	240–380	Full protection

2.2 Базовый тип

Бренд	Модель	Ключевые параметры	Цена (CNY)	Функции
Шнайдер	RM22TR20	208–440V, failure + sequence	180–280	Модульный
АББ	CM-PFE.S	208–440V, 1СО, ≤1s	280–550	Компактный
АББ	CM-PFS.S	208–440V, 2СО, fault memory	320–600	Critical loads
Сименс	3UG4511-1AW30	380В, failure + sequence, ВЕЛ	220–350	Industrial grade
Carlo Gavazzi	DPA51CM44 (базовый)	380В, failure + sequence	150–250	Упрощенный

Special Application Models

Бренд	Модель	Функции	Приложение	Цена (CNY)
ЧИНТ	XJ12	Elevator‑specific, failure + sequence + imbalance	Elevator control	50–100
Вкусный	ZYD1	Pump‑specific, failure + sequence + сверхток	Pump circuits	45–90
Шнайдер	RM22TU23	Three-phase monitoring + пониженное напряжение	Unstable grids	200–320
АББ	CM-MPS.41S	Защита двигателя + последовательность фаз	Integrated motor protection	400–800