The Schneider Electric LC1D300Q7C is a heavy‑duty low‑voltage electromagnetic contactor from the TeSys Q contactor family, designed for reliable switching and control of AC power circuits in industrial and commercial applications. With a rated current of 300 A and a 220 V AC control coil, this contactor is suitable for motor starting, load switching, and power distribution control. It supports multiple utilisation categories and is engineered for robust mechanical and electrical performance, making it ideal for automation systems, motor control centers, and power panels. Technical Specifications General Product Family: TeSys Q (Schneider Electric) Device Type: Electromagnetic contactor Model: LC1D300Q7C Number of Poles: 3 (three normally open main contacts) Application: AC motor control, load switching, power distribution Utilisation Categories: AC‑1, AC‑3, AC‑4 Mounting Type: Panel or DIN‑rail compatible (with accessories) Electrical Ratings Rated Operational Current (Ie): 300 A (power circuit) Rated Operational Voltage (Ue): Up to 690 V AC Control Coil Voltage: 220 V AC, 50/60 Hz Rated Insulation Voltage (Ui): 1000 V AC Rated Impulse Withstand Voltage (Uimp): 6–12 kV Conventional Free‑Air Thermal Current (Ith): 300 A Minimum Switching Current: Suitable for low‑level control signals Motor & Load Performance Motor Power Ratings (AC‑3 Load Duty): Designed to control motors and loads consistent with a 300 A rating Resistive Load Capability: Suitable for general resistive loads up to rated current Mechanical & Operational Operating Mechanism: Electromagnetic coil actuation Control Coil Power Consumption: Standard for 220 V AC Operating Frequency: Suitable for frequent switching operations Mechanical Life: Millions of mechanical cycles Electrical Life: High endurance under rated load conditions Connection Type: Standard screw or busbar terminals Auxiliary Contacts & Accessories Auxiliary Contact Blocks: Optional auxiliary contacts (NO/NC) available for control logic Mounting Accessories: Supports panel or DIN‑rail via optional kits Environmental Ambient Operating Temperature: Industrial standard range Pollution Degree: Suitable for industrial environments Protection Level: Typically IP20 front protection Vibration & Shock Resistance: Designed for rugged industrial use One‑Sentence Summary The Schneider Electric LC1D300Q7C is a three‑pole, 300 A AC contactor with a 220 V AC control coil, engineered for dependable motor control, load switching, and power distribution in industrial and commercial electrical systems. 如需 参数表格版本 或 用于标书/技术文档的段落说明模板，我也可以进一步整理。