قاطع الدائرة الكهربائية شنايدر GV3P50

The Schneider GV3P50 motor circuit breaker is an ideal choice for protecting 22kW three-phase motors. تتميز بالتعثر الحراري والمغناطيسي, نطاق تيار قابل للتعديل من 37 إلى 50 أمبير, قدرة كسر تبلغ 100 كيلو أمبير وتصنيف حماية الدخول IP20, it is widely deployed in industrial automation, fluid conveyance, building facilities and other sectors. Key points: match breaker rating to motor power and operating conditions; avoid non-recommended applications including DC circuits, high-frequency starting and high-altitude environments. Combined with contactors and auxiliary contacts, it forms a complete motor protection and control system.

1. Core Technical Specification Table

ثالثا. Full GV3P Series Model List

1. Alternative Cross Reference (نماذج الاستبدال)
2. In-house Schneider Replacement

2. معادلات عبر العلامات التجارية

1. بيئات التطبيق & القضايا الميدانية
2. التطبيقات الموصى بها

الأتمتة الصناعية: الزائد & short-circuit protection for 3-phase asynchronous pumps, fans and compressors

تصنيع: Production line motor control & machine tool protection

كهرباء البناء: Central air-conditioning & fire-fighting pump control

Energy Sector: Front-end protection for small generator sets and inverters

بنية تحتية: Wastewater treatment equipment & bulk material conveying systems

2. Non-Recommended Applications

DC Circuits: Designed exclusively for AC; abnormal tripping characteristics under DC supply

Ultra-Frequent Cycling: Not applicable for >30 starts per hour (accelerates trip unit aging)

High Altitude: Derating mandatory above 2000m elevation

Corrosive Atmosphere: No anti-corrosion coating; unsuitable for strong acid/alkali surroundings

3. حالات التطبيق النموذجية

قضية 1: Fan System Protection for Food Processing Plant

معدات: 3×22kW centrifugal fans, 380فولت/50 هرتز

حل: GV3P50 + LC1D65 contactor combination

حصيلة: Triple protection against overload, ماس كهربائى & خسارة المرحلة; equipment failure rate reduced by 40%

قضية 2: Submersible Sewage Pump Control at Wastewater Plant

معدات: 4×22kW submersible sewage pumps, 380فولت/50 هرتز

حل: GV3P50 + اتصالات مساعدة + PLC interlock control

حصيلة: Full motor protection plus remote monitoring, lower maintenance expense

1. الامتثال للشحن الجوي & شهادة CE
2. الامتثال للشحن الجوي

UN38.3: غير مطلوب; no built-in lithium battery or supercapacitor inside

فئة الشحن: General commodity without special transport restriction

Packing: Standard industrial carton to avoid transit damage

Shipping Document: Copy of CE certificate + RoHS compliance declaration available

2. تفاصيل شهادة CE

المعايير المعمول بها: اللجنة الانتخابية المستقلة 60947-2 (LV switchgear) & اللجنة الانتخابية المستقلة 60947-4-1 (motor control equipment)

Valid Region: المنطقة الاقتصادية الأوروبية (EEA) & global territories accepting CE marking

صحة: Permanently valid complying with current normative requirements

سؤال: Check Schneider official website product page or certification database

سابعا. استكشاف أخطاء الأخطاء الشائعة وإصلاحها

ثامنا. Sizing Guidelines & قواعد الاختيار السريع

Quick Selection Formula Summary

> GV3P series 3-pole thermal-magnetic breakers;

> Suffix number denotes upper current limit;

> 40 = 25–40A, 50 =37–50A, 65 max at 65A;

> Power matching rule: 40 for 18.5kW, 50 for 22kW, 65 for 30kW.

القواعد السريعة

1. المطابقة الحالية: Motor rated current ×1.1 ≤ breaker setting ≤ motor rated current ×1.3
2. Power Reference: At 400V, GV3P50 matches 22kW motor (~44A nominal)
3. Accessory Option: الاتصال المساعد: GV3AE11 (1لا + 1NC) / GV3AE20 (2لا)
4. Mounting Spacing: DIN rail install; ≥10mm clearance for heat dissipation, away from heat-generating devices
5. تثبيت & تعليمات الأسلاك
6. خطوات التثبيت

Confirm standard 35mm DIN rail

Snap breaker firmly onto rail

Incoming power: top-feed or bottom-feed acceptable

Motor cable connection: terminal tightening torque 2.5Nm recommended

2. مواصفات الأسلاك

Wire cross-section range: 1.5mm² min ~35mm² max

صالة: EverLink BTR screw terminal compatible with copper/aluminum conductors

Phase marking: R/S/T corresponds to L1/L2/L3; no neutral connection (3P without N pole)

3. حماية إي إم سي

Maintain ≥50mm clearance between breaker and contactors

Separate control wiring from power cables to avoid cross-interference

Install EMC filter if needed for EMI suppression

Full Application Overview for Schneider GV3P50 Motor Circuit Breaker

1. Core Application Summary

Schneider GV3P50 is a 3-pole thermal-magnetic motor circuit breaker with adjustable trip 37–50A, rated for 22kW three-phase asynchronous motors @400V. Its core functions: الزائد المحرك, ماس كهربائى & phase-loss protection plus manual switching, widely used in below industries:

1. Detailed Application Classification
2. الأتمتة الصناعية & تصنيع

2. Fluid Conveyance Systems

3. مبنى & Municipal Infrastructure

4. Other Industrial Sectors

ثالثا. Non-Recommended Applications (Avoidance Guide)

1. Detailed Field Application Cases

Case1: 22kW Fan Protection in Food Factory

Setup: 3×22kW centrifugal fans 380V/50Hz, independent control per unit

مخطط: GV3P50 + LC1D65 contactor + GV3AE11 auxiliary contact

منطق: Manual/Auto switch; auto stop & alarm upon overload

نتيجة: Triple protection realized; failure rate -40%, maintenance cost -30%

Case2: Submersible Sewage Pump Control at WWTP

Setup: 4×22kW submersible sewage pumps 380V/50Hz, alternating operation

مخطط: GV3P50 + PLC interlock + level transducer

حالة: بيئة رطبة, 10~15 starts/hour frequent cycling

نتيجة: Anti-stall burnout + remote auto-switching, improved system reliability

الحالة3: Central Air-conditioning for Shopping Mall

Setup: 3×22kW chilled water pumps with VFD control 380V/50Hz

مخطط: GV3P50 + العاكس + temperature sensor

ميزة: Speed auto-adjust by return water temp; coordinated protection by inverter + breaker under overload

نتيجة: ≥30% energy saving, service life doubled, superior system stability

1. Recommended Matching Components & نصائح الاختيار
2. Recommended Matching List

2. Sizing Rules
3. Power Match: 22كيلوواط (~44A @400V) optimally paired with GV3P50 (37-50 أ)
4. Trip Setting: Motor rated current ×1.1 ≤ breaker setting ≤ motor rated current ×1.3
5. Mount Clearance: ≥50mm gap to adjacent contactors; ≥10mm free space for heat dissipation
6. عزم الدوران الأسلاك: Cable terminal tightening torque fixed at 2.5Nm
7. Ambient Derate: ديراتي 1% rated current per every 1°C rise above +40°C ambient temperature