المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية
Schneider LC1D38BLDC24V TeSys D Series المقاولين with DC Coil
The Schneider LC1D38BLDC24V is a low-consumption DC coil contactor of the TeSys D Series. Featuring a rated current of 38A, 24V low-power DC coil, 3NO+1NO+1NC contact configuration and a compact 45mm width design, it is an ideal choice for industrial automation. Its advantages of energy efficiency, high reliability and flexible installation make it widely applied in motor control, PLC systems, المشجعين, water pumps and other facilities. For selection, comprehensively consider load type, السيطرة على الجهد, installation space and energy consumption requirements. Routine maintenance is also required to ensure optimal performance and extended service life.
This is a three-pole AC contactor of Schneider TeSys D Series, rated at 38A and equipped with a 24V low-consumption DC coil. It has 3 main NO contacts plus 1 NO and 1 الاتصالات المساعدة NC, and is applicable for controlling 18.5kW motors (ايه سي-3, 440V). With a width of 45mm and support for DIN rail mounting, it is typically used in industrial automation, motor control and PLC systems.
- شرح كود النموذج
| مقطع الكود | معنى | وصف |
| LC1 | Series Prefix | Identifier for Schneider TeSys contactors; LC1 stands for three-pole contactor |
| د | Sub-series | سلسلة تيسيس د, general-purpose industrial contactor with 45mm width for standard applications |
| 38 | التصنيف الحالي | Rated operational current of main contacts: 38أ (ايه سي-3, 440V) |
| ب | الجهد لفائف | 24V (B=24V, C=36V, E=48V, F=110V, M=220V, P=230V, U=240V, إلخ.) |
| ل | نوع الملف | Low consumption coil, power consumption reduced by about 50% compared with standard coils |
| العاصمة | Coil Power Supply | Direct current coil, distinguished from AC coils |
| 24V | الجهد لفائف | Explicit rated voltage: 24في العاصمة |
| -XXX | Suffix Code | Optional configurations including auxiliary contacts (على سبيل المثال. 3BL = 3NO+1NO+1NC) and terminal types |
- Main Specifications
| غرض | قيمة | ملاحظات |
| ماركة | شنايدر إلكتريك | World-renowned electrical equipment manufacturer |
| مسلسل | تيسيس د (LC1D) | General-purpose industrial contactor with high cost performance |
| يكتب | Three-pole AC contactor with low-consumption DC coil | Non-reversing type, for motor start and stop control |
| تكوين جهة الاتصال الرئيسية | 3لا (3 مفتوح عادة) | Standard design for three-phase circuit control |
| تكوين الاتصال المساعد | 1لا + 1NC (1 مفتوح عادة + 1 مغلق عادة) | Built-in auxiliary contacts for control circuits |
| التصنيف الحالي | 38أ (ايه سي-3, 440V) | Rated current for motor loads |
| تصنيف الجهد التشغيلي | ≥690 فولت تيار متردد (25~400 هرتز), ≤300V DC | Maximum voltage of main circuit |
| الجهد لفائف | 24في العاصمة | Control circuit voltage; نطاق التشغيل: 20.4~26.4V DC |
| استهلاك طاقة الملف | Pull-in: 18دبليو, عقد: 2.5دبليو | Low-power design for energy saving and less heat generation |
| القوة المقدرة | 18.5كيلوواط (ايه سي-3, 440V, 50هرتز) | Maximum power of controllable motor |
| التحمل الميكانيكي | 10,000,000 العمليات | High-reliability construction |
| التحمل الكهربائي | 1,000,000 العمليات (under rated AC-3 conditions) | متوافق مع IEC 60947-4-1 |
| طريقة التركيب | تركيب السكك الحديدية DIN (في 50022) or screw mounting | Flexible installation for control cabinet layout |
| عرض | 45مم | Standard width to save cabinet space |
| المحطات | Everlink hexagon socket screw terminals | Firm connection with anti-loosening design |
| حماية الدخول | IP20 (main body) | Suitable for indoor control cabinets |
| الشهادات | اللجنة الانتخابية المستقلة 60947-4-1, أول, وكالة الفضاء الكندية, م | متوافقة مع معايير السلامة الدولية |
| لون | أسود | Standard industrial color |
| وزن | تقريبا. 420ز | خفيفة الوزن لسهولة التركيب |
- Cross-Brand Compatibility & استبدال
| ماركة | النموذج المعادل | تحديد | توصية الاستبدال |
| شنايدر | LC1D38BD | 38أ, 24V DC standard coil, 3NO+1NO+1NC | Standard power version; coil pull-in 28W, holding 4W, سعر منخفض |
| شنايدر | LC1D38BNE | 38أ, 24V AC/DC universal coil, 3لا | Universal AC/DC coil, ideal for unstable power supply |
| ايه بي بي | أ145-30-11 | 38أ, 24لفائف العاصمة, 3NO+1NO+1NC | Similar size and performance, direct replacement available |
| سيمنز | 3RT2026-1BB40 | 38أ, 24لفائف العاصمة, 3NO+1NO+1NC | German brand with reliable quality, higher price |
| اومرون | GMC-38 | 38أ, 24لفائف العاصمة, 3NO+1NO+1NC | Japanese brand with fast response, for precision control |
| شينت | CJX2-3810Z | 38أ, 24لفائف العاصمة, 3NO+1NO | البديل المحلي, cost-effective and stable performance |
| تشانغشو التبديل | CK3-38 | 38أ, 24لفائف العاصمة, 3NO+1NO+1NC | Well-known domestic brand with high cost performance |
- Full Model List of LC1D38 Series
| نموذج | نوع الملف | الجهد لفائف | جهات الاتصال الرئيسية | جهات الاتصال المساعدة | سمات | رقم الطلب. |
| LC1D38BLDC24V | Low-consumption DC | 24في العاصمة | 3لا | 1لا + 1NC | Energy-saving design, suitable for long-term operation | LC1D38BL |
| LC1D38BDDC24V | Standard DC | 24في العاصمة | 3لا | 1لا + 1NC | Standard power, economical price | LC1D38BD |
| LC1D38B7AC24V | Standard AC | 24الخامس و | 3لا | 1لا + 1NC | AC coil, for traditional control circuits | LC1D38B7 |
| LC1D38BLAC24V | Low-consumption AC | 24الخامس و | 3لا | 1لا + 1NC | Low-power AC type, موفرة للطاقة | LC1D38BL |
| LC1D383BLDC24V | Low-consumption DC | 24في العاصمة | 3لا | 3لا + 1NC | Multiple auxiliary contacts, for complex control | LC1D383BL |
| LC1D38BDC24V | Standard DC | 24في العاصمة | 3لا | لا توجد اتصالات مساعدة | النموذج الأساسي, for simple control | LC1D38BDC |
| LC1D38KUEDC24V | Universal coil | 24في العاصمة | 3لا | 1لا + 1NC | Wide voltage range, adapts to power fluctuation | LC1D38KUE |
| LC1D38BLDC48V | Low-consumption DC | 48في العاصمة | 3لا | 1لا + 1NC | Dedicated for 48V systems | LC1D38BL |
- بيئة التطبيق & دليل الاختيار
Recommended Applications
التحكم بالمحركات الصناعية: يبدأ, stop and forward/reverse control of three-phase asynchronous motors (≤18.5kW)
PLC Control Systems: Act as output actuators of PLC to control various loads
معجب & Water Pump Control: أنظمة التدفئة والتهوية وتكييف الهواء, industrial cooling systems, water treatment equipment
Compressor Control: ضواغط الهواء, ضواغط التبريد, إلخ.
الناقلون & Production Lines: Power control for automated production lines
أدوات الآلة: Motor control for CNC machine tools, milling machines, grinders and other equipment
الطاقة المتجددة: Auxiliary control for photovoltaic inverters and wind power systems
Not Recommended Applications
High-frequency Start-Stop: زيادة 10 operations per minute; special contactors are recommended
Flammable & Explosive Areas: No explosion-proof certification, not applicable for chemical, mining and other hazardous sites
Unprotected Outdoor Use: IP20 rating provides limited protection against dust and moisture
Extremely Low Temperature: Ambient temperature below -5℃ may affect coil pull-in performance
High-frequency Switching Devices: Such as electric welders and high-frequency power supplies; thyristors or solid state relays are preferred
Selection Rhythm
سلسلة تيسيس د, forty-five millimeters wide,
Thirty-eight amperes for loads to abide.
B stands for twenty-four volt supply,
L means low power, energy well applied.
DC for direct, AC for alternating flow,
Three NO main contacts where power will go.
One NO, one NC for control circuit use,
Most common choice for motor crews.
DIN rail mount saves cabinet space,
Used widely in every industrial place.
- الأخطاء الشائعة & استكشاف الأخطاء وإصلاحها
| ظاهرة الخلل | الأسباب المحتملة | خطوات استكشاف الأخطاء وإصلاحها | الحلول |
| فشل المقاول في السحب | 1. Low or no control voltage | 1. قياس جهد الملف (normal range: 20.4~26.4V) | 1. Stabilize control voltage |
| 2. لفائف محترقة | 2. Test coil resistance (normal value: تقريبا. 17惟) | 2. Replace with identical contactor | |
| 3. التشويش الميكانيكي | 3. Manually toggle the contactor to check flexibility | 3. Remove foreign objects or replace contactor | |
| 4. Open circuit in control loop | 4. Inspect wiring and components of control loop | 4. Repair control circuit | |
| Contactor drops out after pull-in | 1. Unstable control voltage | 1. Measure coil voltage during operation | 1. Install voltage stabilizer |
| 2. Poor coil connection | 2. Check loose coil terminals | 2. Fasten wiring terminals | |
| 3. Voltage drop caused by overloaded load | 3. Detect power voltage fluctuation | 3. Use thicker cables or reduce load | |
| 4. Faulty auxiliary contacts | 4. Inspect contact condition of auxiliary contacts | 4. استبدال وحدة الاتصال المساعدة | |
| Overheating / arcing on contacts | 1. Load current exceeds rated value | 1. Measure actual load current | 1. Replace contactor with higher rating |
| 2. Poor contact performance | 2. Check oxidation or ablation on contact surfaces | 2. Clean contacts or replace contactor | |
| 3. Frequent start-stop operations | 3. Count start-stop frequency | 3. Optimize control logic to reduce switching times | |
| 4. ارتفاع درجة الحرارة المحيطة بشكل مفرط | 4. Measure ambient temperature | 4. Add heat dissipation measures | |
| Excessive operating noise | 1. Oil or dust on iron core surface | 1. Clean iron core surface | 1. Wipe and clean iron core |
| 2. Broken shading ring | 2. Check integrity of shading ring | 2. Replace contactor | |
| 3. Loose installation | 3. Tighten mounting screws | 3. Fasten all fixing screws | |
| 4. Low supply voltage | 4. قياس جهد الملف | 4. Stabilize power supply voltage | |
| Overheated coil | 1. الجهد الزائد | 1. Check if coil voltage exceeds 26.4V | 1. Lower control voltage |
| 2. Coil aging | 2. Check coil for discoloration | 2. Replace contactor | |
| 3. ارتفاع درجة الحرارة المحيطة | 3. Measure ambient temperature | 3. تحسين تبديد الحرارة | |
| 4. Continuous energization | 4. Verify long-term energization requirements | 4. Adopt pulse control mode |
- Industrial Application Cases
قضية 1: Fan Control Renovation in Textile Factory
Traditional contactors in a textile factory suffered frequent burnout, coil overheating and high power consumption. The original AC standard-power contactors controlled 3 sets of 15kW fans.
حل: Replaced with Schneider LC1D38BLDC24V contactors featuring low-consumption DC coils, combined with PLC for soft start and variable frequency speed regulation.
Result: Coil temperature decreased by 25%, power consumption cut by 50%, service life extended to 5 سنين. Annual electricity cost saved about 8,000 RMB and failure rate reduced by 90%.
قضية 2: Motor Control for Automated Production Line
Multiple 38A motors were used on an auto parts production line. Low-quality generic contactors caused frequent line shutdowns due to poor reliability.
حل: Fully replaced with LC1D38BLDC24V contactors to unify control standards, and matched with Schneider PLC for centralized control and fault diagnosis.
Result: Line downtime reduced by 85%, خفض تكاليف الصيانة بنسبة 70% and production efficiency improved by 15%. The low-power design lowered cabinet temperature and prolonged service life of other electrical components.
قضية 3: Air Conditioning Control in Data Center
Multiple 18.5kW compressors were equipped in a large data center air conditioning system. The original AC coil contactors often failed to pull in under UPS power supply mode.
حل: Switched to LC1D38BLDC24V DC coil contactors which adapt to DC output of UPS. The low-power design also reduced UPS load.
Result: Stable pull-in performance under UPS mode with zero faults. UPS load decreased by 30%, battery service life extended and maintenance frequency of air conditioning system reduced.
