접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
XJ3-D is a multi-functional three-phase power protection device widely used in AC 380V power systems. 3상 비동기 모터 및 회로에 대해 결상에 대한 4중 보호 기능을 제공합니다., 위상 반전, 과전압, 그리고 저전압, 이상전원 공급으로 인한 장비 파손 및 안전사고 예방.
- 핵심 기능 & 특징
| 보호 기능 | Technical Description | Operating Mechanism |
| 위상 오류 보호 | 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 |
| Overvoltage Protection | Protection voltage adjustable from 380V to 460V | Operating time adjustable 1.5s–4s; control circuit opens on overvoltage |
| Undervoltage Protection | Protection voltage adjustable from 300V to 380V | Operating time adjustable 2s–9s; control circuit opens on undervoltage |
제품특징:
Multi-mode fault indication (three LEDs for phase reversal/failure, 과전압, 저전압)
Reliable performance, wide application range, easy to use
컴팩트한 사이즈, convenient DIN-rail mounting
| GB/T를 준수합니다. 14048.5
- 기술적인 매개변수
| 목 | 사양 | 비고 |
| Rated control supply voltage | 교류 380V, 50/60헤르츠 | Direct three-phase power supply |
| Overvoltage protection range | 380V–460V (조절할 수 있는) | Factory default approx. 420다섯 |
| Undervoltage protection range | 300V–380V (조절할 수 있는) | Factory default approx. 340다섯 |
| Overvoltage operating time | 1.5s–4s (조절할 수 있는) | Time delay to avoid misoperation |
| Undervoltage operating time | 2s–9s (조절할 수 있는) | Time delay to avoid misoperation |
| Phase failure operating time | ≤2s | Fast response |
| Phase sequence operating time | ≤1s | Fast response |
| 접점등급 | AC-15: 220V/5A, 380V/3A | Control circuit load capacity |
| 치수 | 대략. 45×75×105mm | Standard DIN-rail size |
| 설치 | DIN 레일 장착 | Complies with EN 50022 |
- 작동 원리
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 (과전압/저전압) 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
과전압: Overvoltage LED on
저전압: Undervoltage LED on
- 배선 & 설치
4.1 Standard Terminal Definition
| 터미널 번호. | 기능 | Wiring Description |
| 1, 2, 3 | Three-phase power input | Connect to L1, L2, L3 (380다섯); any sequence allowed, auto-learn on first power-on |
| 5, 6 | Normally open (아니요) contact | Open under normal protection, closed on fault |
| 7, 8 | Normally closed (NC) contact | Closed under normal protection, open on fault (commonly used for contactor coil control) |
| 9 | Common terminal | Used with terminals 5 그리고 7 |
4.3 설치 참고 사항
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 & 선택
Main Brands: 맛있는, 친트, People Electric, Taihua Electric, 등.
선택 지침:
- 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
- 문제 해결
| 결함 증상 | 가능한 원인 | 문제 해결 |
| 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. 느슨한 배선 | 3. 터미널을 조이세요 | |
| Overvoltage LED always on | 1. Excessively high supply voltage | 1. Measure line voltage |
| 2. Overvoltage threshold set too low | 2. Adjust overvoltage potentiometer | |
| Undervoltage LED always on | 1. Low supply voltage | 1. Measure line voltage |
| 2. Undervoltage threshold set too high | 2. Adjust undervoltage potentiometer | |
| Cannot reset after protection | 1. Power abnormality not resolved | 1. Restore power then repower |
| 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, 과전압, 그리고 저전압. It is widely used in control circuits for pumps, 팬, 압축기, 공작기계, and other three-phase equipment, making it an indispensable component in industrial automation systems.
Model Comparison & 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: 위상 실패, sequence, 과전압, 저전압), with market price ranges and key differences for easy selection and procurement.
- Domestic Brands -Model Comparison & Prices (April 2026)
1.1 Core Function Comparison
| 상표 | Multi‑function Type (Phase failure + Sequence + 과전압 + 저전압) | 기본형 (Phase failure + Sequence) | 메모 |
| 친트 | XJ3-D AC380V | XJ3-G AC380V | XJ3-5 with base |
| 맛있는 | 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)
| 상표 | 모델 | Official Store Price | Wholesale Price | Retail Price (타오바오) | 특징 |
| 친트 | XJ3-D | 72.27–108.82 | 30–40 | 38-50 | Stable, high market share |
| 친트 | XJ3-G | 40-50 | 25-35 | 28–38 | Basic protection, 경제적 |
| 맛있는 | XJ3-D | 79.8 | 32–42 | 40-55 | Adjustable over/undervoltage |
| 맛있는 | XJ3-G | 40.4 | 22-30 | 25-35 | High cost-performance |
| PEOPLE | XJ3-D | 65–80 | 28–38 | 35-45 | Moderate price, 믿을 수 있는 |
| PEOPLE | XJ3-G | 35-45 | 22-30 | 25–32 | Basic function, affordable |
- Imported Brands -Model Comparison & Prices
2.1 Equivalent Models to XJ3-D
| 상표 | Multi‑function Type | 기본형 | 가격대 (CNY) |
| 슈나이더 | RM22TG20 (with over/undervoltage) | RM22TG20 (기초적인) | 216–350 |
| 씨줄 | CM-PVS.41S (voltage monitoring) | CM-PFE / CM-PFS.S | 335–799 |
| Carlo Gavazzi | DPA51CM44 (multi-function) | DPA51CM44 (기초적인) | 180–300 |
| 지멘스 | 3UG4512-1AW30 | 3UG4511-1AW30 | 280–450 |
2.2 Key Features of Imported Models
Schneider RM22TG20: 208-480VAC, global voltage, 2CO contacts, response ≤1s
ABB CM-PVS.41S: 위상 불균형 보호, adjustable delay, for precision equipment
Carlo Gavazzi DPA51CM44: DIN 레일, LED indication, adjustable thresholds, best value among imports
Siemens 3UG4512: 높은 통합, PLC communication, for high-level automation
- 선택 참고 & 메모
3.1 Application Guide
| 애플리케이션 | Recommended Type | 이유 |
| General three-phase motors (슬리퍼, 팬) | XJ3-G / XJ3-D | Sufficient basic protection, 경제적 |
| Precision equipment (CNC, 압축기) | XJ3-D / imported multi‑function | Over/undervoltage protection prevents damage |
| Non‑reversible equipment (엘리베이터, 크레인) | 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
- 기능: Multi-function models (XJ3-D) cost ~30-50% more than basic types (XJ3-G)
- 상표: Imported units are 3-5× more expensive than domestic
- 채널: 공식적인 > 소매 > wholesale
- Quantity: 10%-20% discount for bulk orders (≥10 pcs)
3.3 호환성 참고 사항
All XJ3 series use DIN-rail mounting (안에 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
- 요약 & Procurement Suggestions
| Budget | 추천 모델 | 애플리케이션 |
| 낮은 (≤50 CNY) | 친트 / 맛있는 / PEOPLE XJ3-G | General motor protection |
| 중간 (50–100 CNY) | 친트 / Delixi XJ3-D | Most industrial applications |
| 높은 (≥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 (위상 실패 + sequence + 과전압 + 저전압), categorized by brand with key parameters and April 2026 price ranges for quick selection.
- Domestic Mainstream Models (교류 380V)
1.1 Multi-function Type
| 상표 | 모델 | 주요 매개변수 | 가격 (CNY) | 메모 |
| 친트 | XJ3-D AC380V | Overvoltage 380–460V, undervoltage 300–380V, contact 5A/220V | 38–108 | 공식적인: 72.27–108.82 |
| 친트 | XJ3-D-40 AC380V | With base, same as XJ3-D | 45-120 | Easy replacement |
| 맛있는 | XJ3-D AC380V | Overvoltage delay 1.5–4s, undervoltage 2–9s, 주도의 | 40–79.8 | 공식적인: 79.80 |
| PEOPLE | XJ3-D AC380V | Phase failure ≤2s, sequence ≤1s, DIN 레일 | 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 | 국내 대안 |
| 친트 | NJB1-X | Sequence + failure + imbalance, 380–480V | 45-90 | For unstable voltage |
1.2 기본형
| 상표 | 모델 | 주요 매개변수 | 가격 (CNY) | 메모 |
| 친트 | XJ3-G AC380V | Phase failure/sequence, 3A/380V | 28-50 | 공식적인: 40-50 |
| 맛있는 | XJ3-G AC380V | Failure ≤2s, sequence ≤1s | 25–40.4 | 공식적인: 40.40 |
| PEOPLE | XJ3-G AC380V | DIN 레일, 주도의 | 25-45 | Economical |
| 맛있는 | XJ3-2 AC380V | Simplified sequence + failure | 22-35 | Basic circuits |
| 맛있는 | XJ3-5 AC380V | Failure + sequence + imbalance (7–10%) | 30-50 | With imbalance protection |
- Imported Models (Equivalent to XJ3-D)
2.1 Multi-function Type
| 상표 | 모델 | 주요 매개변수 | 가격 (CNY) | 특징 |
| 슈나이더 | RM22TG20 | 208–480VAC, 2콜로라도, ≤1s | 216–350 | 22.5mm 폭 |
| 슈나이더 | RM4TG20 | Same as RM22TG20 | 180–280 | Localized version |
| 씨줄 | CM-PVS.41S | 208–440V, imbalance, adjustable delay | 335–799 | 높은 정밀도 |
| Carlo Gavazzi | DPA51CM44 | 380다섯, 조절할 수 있는, 주도의 | 180–300 | Fast response |
| 지멘스 | 3UG4512-1AW30 | 380다섯, 과전압/저전압 + failure + sequence, PLC | 280–450 | 높은 통합 |
| 슈나이더 | RM22TR33 | Three-phase monitoring + 과전압/저전압 + imbalance | 240–380 | 완전한 보호 |
2.2 기본형
| 상표 | 모델 | 주요 매개변수 | 가격 (CNY) | 특징 |
| 슈나이더 | RM22TR20 | 208–440V, failure + sequence | 180–280 | Modular |
| 씨줄 | CM-PFE.S | 208–440V, 1콜로라도, ≤1s | 280–550 | 콤팩트 |
| 씨줄 | CM-PFS.S | 208–440V, 2콜로라도, fault memory | 320–600 | Critical loads |
| 지멘스 | 3UG4511-1AW30 | 380다섯, failure + sequence, 주도의 | 220–350 | Industrial grade |
| Carlo Gavazzi | DPA51CM44 (기초적인) | 380다섯, failure + sequence | 150–250 | Simplified |
- Special Application Models
| 상표 | 모델 | 특징 | 애플리케이션 | 가격 (CNY) |
| 친트 | XJ12 | Elevator‑specific, failure + sequence + imbalance | 엘리베이터 제어 | 50-100 |
| 맛있는 | ZYD1 | Pump‑specific, failure + sequence + 과전류 | Pump circuits | 45-90 |
| 슈나이더 | RM22TU23 | Three-phase monitoring + 저전압 | Unstable grids | 200–320 |
| 씨줄 | CM-MPS.41S | Motor protection + phase sequence | Integrated motor protection | 400–800 |
- Quick Selection Reference
4.1 명명 규칙 (Domestic XJ3 Series)
XJ3: Basic phase failure & sequence relay
디: Multi-function (failure + sequence + 과전압 + 저전압)
G: Basic type (failure + sequence)
2/5: 특수 기능 (2 = basic; 5 = with imbalance)
AC380V: 정격전압
4.2 설치 & 호환성
All XJ3: DIN 레일 마운트 (안에 50022), dimensions ~45×75×105mm
Identical terminal definition: 1/2/3 = power; 7/8 = NC
Domestic XJ3 models directly interchangeable
4.3 Price Factors
| 요인 | Price Difference |
| 기능 | Multi‑function +30–50% |
| 상표 | Imported = 3–5× domestic |
| 채널 | 공식적인 > 소매 > wholesale |
- Procurement Advice
- 일반산업: Domestic XJ3-D (CHINT/Delixi), 50-80 CNY
- Precision/critical lines: Imported (Schneider RM22TG20 / 씨줄), 200-400 CNY
- Basic protection: XJ3-G, 25-40 CNY
