Контактор,автоматический выключатель,солнечный инвертор,электрический счетчик,солнечные батареи
Schneider LC1D38BLDC24V TeSys D Series Контактор with DC Coil
The Schneider LC1D38BLDC24V is a low-consumption DC coil contactor of the TeSys D Series. Имеет номинальный ток 38А., 24Катушка постоянного тока малой мощности V, 3Конфигурация контактов NO+1NO+1NC и компактная конструкция шириной 45 мм., это идеальный выбор для промышленной автоматизации. Преимущества энергоэффективности, high reliability and flexible installation make it widely applied in motor control, ПЛК-системы, фанаты, water pumps and other facilities. Для выбора, comprehensively consider load type, управляющее напряжение, 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 Вспомогательные контакты НЗ, and is applicable for controlling 18.5kW motors (АС-3, 440В). With a width of 45mm and support for DIN rail mounting, it is typically used in industrial automation, motor control and PLC systems.
- Пояснение кода модели
| Сегмент кода | Значение | Описание |
| ЛК1 | Series Prefix | Identifier for Schneider TeSys contactors; LC1 stands for three-pole contactor |
| Д | Подсерия | TeSys серии D, general-purpose industrial contactor with 45mm width for standard applications |
| 38 | Номинальный ток | Rated operational current of main contacts: 38А (АС-3, 440В) |
| Б | Напряжение катушки | 24В (Б=24В, C=36V, Е=48В, Ф=110В, М=220В, P=230V, U=240V, и т. д.) |
| л | Тип катушки | Low consumption coil, power consumption reduced by about 50% compared with standard coils |
| округ Колумбия | Coil Power Supply | Direct current coil, distinguished from AC coils |
| 24В | Напряжение катушки | Explicit rated voltage: 24В Вашингтоне |
| -XXX | Суффикс-код | Optional configurations including auxiliary contacts (например. 3BL = 3NO+1NO+1NC) and terminal types |
- Основные характеристики
| Элемент | Ценить | Примечания |
| Бренд | Шнайдер Электрик | World-renowned electrical equipment manufacturer |
| Ряд | ТеСис Д (LC1D) | General-purpose industrial contactor with high cost performance |
| Тип | Three-pole AC contactor with low-consumption DC coil | Non-reversing type, for motor start and stop control |
| Конфигурация основного контакта | 3НЕТ (3 Нормально открытый) | Standard design for three-phase circuit control |
| Конфигурация вспомогательного контакта | 1НО+1НЗ (1 Нормально открытый + 1 Нормально закрытый) | Built-in auxiliary contacts for control circuits |
| Номинальный ток | 38А (АС-3, 440В) | Rated current for motor loads |
| Номинальное рабочее напряжение | ≤690 В переменного тока (25~400Гц), ≤300 В постоянного тока | Maximum voltage of main circuit |
| Напряжение катушки | 24В Вашингтоне | Напряжение цепи управления; Рабочий диапазон: 20.4~26.4V DC |
| Потребляемая мощность катушки | Pull-in: 18Вт, Холдинг: 2.5Вт | Low-power design for energy saving and less heat generation |
| Номинальная мощность | 18.5кВт (АС-3, 440В, 50Гц) | Maximum power of controllable motor |
| Механическая выносливость | 10,000,000 операции | High-reliability construction |
| Электрическая выносливость | 1,000,000 операции (under rated AC-3 conditions) | Соответствует МЭК 60947-4-1 |
| Способ монтажа | Монтаж на DIN-рейку (В 50022) or screw mounting | Flexible installation for control cabinet layout |
| Ширина | 45мм | Standard width to save cabinet space |
| Терминалы | Everlink hexagon socket screw terminals | Firm connection with anti-loosening design |
| Защита от проникновения | IP20 (основная часть) | Suitable for indoor control cabinets |
| Сертификаты | МЭК 60947-4-1, UL, CSA, CE | Compliant with international safety standards |
| Цвет | Черный | Standard industrial color |
| Масса | Приблизительно. 420г | Легкий вес для легкой установки |
- Cross-Brand Compatibility & Замена
| Бренд | Эквивалентная модель | Технические характеристики | Рекомендации по замене |
| Шнайдер | LC1D38BD | 38А, 24V DC standard coil, 3NO+1NO+1NC | Standard power version; coil pull-in 28W, holding 4W, Сниженная цена |
| Шнайдер | LC1D38BNE | 38А, 24V AC/DC universal coil, 3НЕТ | Universal AC/DC coil, ideal for unstable power supply |
| АББ | А145-30-11 | 38А, 24Катушка постоянного тока В, 3NO+1NO+1NC | Similar size and performance, direct replacement available |
| Сименс | 3РТ2026-1BB40 | 38А, 24Катушка постоянного тока В, 3NO+1NO+1NC | German brand with reliable quality, более высокая цена |
| Омрон | GMC-38 | 38А, 24Катушка постоянного тока В, 3NO+1NO+1NC | Japanese brand with fast response, for precision control |
| ЧИНТ | CJX2-3810Z | 38А, 24Катушка постоянного тока В, 3NO+1NO | Отечественная альтернатива, cost-effective and stable performance |
| Переключатель Чаншу | CK3-38 | 38А, 24Катушка постоянного тока В, 3NO+1NO+1NC | Известный отечественный бренд с высокой экономичностью. |
- Full Model List of LC1D38 Series
| Модель | Тип катушки | Напряжение катушки | Основные контакты | Вспомогательные контакты | Функции | Номер заказа. |
| LC1D38BLDC24V | Low-consumption DC | 24В Вашингтоне | 3НЕТ | 1НО+1НЗ | Energy-saving design, suitable for long-term operation | LC1D38BL |
| LC1D38BDDC24V | Standard DC | 24В Вашингтоне | 3НЕТ | 1НО+1НЗ | Standard power, экономичная цена | LC1D38BD |
| LC1D38B7AC24V | Standard AC | 24В и | 3НЕТ | 1НО+1НЗ | катушка переменного тока, for traditional control circuits | LC1D38B7 |
| LC1D38BLAC24V | Low-consumption AC | 24В и | 3НЕТ | 1НО+1НЗ | Low-power AC type, энергосберегающий | LC1D38BL |
| LC1D383BLDC24V | Low-consumption DC | 24В Вашингтоне | 3НЕТ | 3НО+1НЗ | Multiple auxiliary contacts, for complex control | LC1D383BL |
| LC1D38BDC24V | Standard DC | 24В Вашингтоне | 3НЕТ | Нет вспомогательных контактов | Базовая модель, for simple control | LC1D38BDC |
| LC1D38KUEDC24V | Universal coil | 24В Вашингтоне | 3НЕТ | 1НО+1НЗ | Широкий диапазон напряжения, adapts to power fluctuation | LC1D38KUE |
| LC1D38BLDC48V | Low-consumption DC | 48В Вашингтоне | 3НЕТ | 1НО+1НЗ | Dedicated for 48V systems | LC1D38BL |
- Среда применения & Руководство по выбору
Рекомендуемые приложения
Управление промышленным двигателем: Начинать, 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
Вентилятор & Water Pump Control: системы отопления, вентиляции и кондиционирования, industrial cooling systems, water treatment equipment
Compressor Control: Воздушные компрессоры, холодильные компрессоры, и т. д..
Конвейеры & Production Lines: Power control for automated production lines
Станки: Motor control for CNC machine tools, фрезерные станки, grinders and other equipment
Renewable Energy: Auxiliary control for photovoltaic inverters and wind power systems
Нерекомендуемые приложения
High-frequency Start-Stop: Над 10 operations per minute; special contactors are recommended
Flammable & Explosive Areas: Нет сертификата взрывобезопасности., 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
Серия TeSys D, 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.
- Распространенные неисправности & Поиск неисправностей
| Явление неисправности | Возможные причины | Действия по устранению неполадок | Решения |
| Контактор не втягивается | 1. Low or no control voltage | 1. Measure coil voltage (нормальный диапазон: 20.4~26,4 В) | 1. Stabilize control voltage |
| 2. Сгоревшая катушка | 2. Test coil resistance (normal value: приблизительно. 17но) | 2. Replace with identical contactor | |
| 3. Механические помехи | 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. Установить стабилизатор напряжения |
| 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. Замените модуль вспомогательных контактов. | |
| Перегрев / 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. Чрезмерно высокая температура окружающей среды | 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. Сломанное затеняющее кольцо | 2. Check integrity of shading ring | 2. Replace contactor | |
| 3. Loose installation | 3. Tighten mounting screws | 3. Fasten all fixing screws | |
| 4. Низкое напряжение питания | 4. Measure coil voltage | 4. Stabilize power supply voltage | |
| Overheated coil | 1. Перенапряжение | 1. Check if coil voltage exceeds 26.4V | 1. Lower control voltage |
| 2. Coil aging | 2. Check coil for discoloration | 2. Replace contactor | |
| 3. Высокая температура окружающей среды | 3. Measure ambient temperature | 3. Улучшить отвод тепла | |
| 4. Непрерывная подача питания | 4. Verify long-term energization requirements | 4. Adopt pulse control mode |
- Industrial Application Cases
Случай 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.
Решение: Replaced with Schneider LC1D38BLDC24V contactors featuring low-consumption DC coils, combined with PLC for soft start and variable frequency speed regulation.
Результат: Coil temperature decreased by 25%, power consumption cut by 50%, service life extended to 5 годы. Annual electricity cost saved about 8,000 RMB and failure rate reduced by 90%.
Случай 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.
Решение: Fully replaced with LC1D38BLDC24V contactors to unify control standards, and matched with Schneider PLC for centralized control and fault diagnosis.
Результат: Line downtime reduced by 85%, расходы на техническое обслуживание сокращены на 70% and production efficiency improved by 15%. The low-power design lowered cabinet temperature and prolonged service life of other electrical components.
Случай 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.
Решение: Switched to LC1D38BLDC24V DC coil contactors which adapt to DC output of UPS. The low-power design also reduced UPS load.
Результат: 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.
