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LDD
LDD – Low Voltage Molded Case Circuit Breakers (MCCBs)
Block 1: Technical Introduction
LDD refers to a series of low voltage molded case circuit breakers (MCCBs) designed for industrial and commercial electrical distribution systems. These devices are available in various pole configurations, typically 3P and 4P, with rated currents ranging from 1...
LDD – Low Voltage Molded Case Circuit Breakers (MCCBs)
Block 1: Technical Introduction
LDD refers to a series of low voltage molded case circuit breakers (MCCBs) designed for industrial and commercial electrical distribution systems. These devices are available in various pole configurations, typically 3P and 4P, with rated currents ranging from 100A to 1600A. They feature high breaking capacities (up to 100kA at 415V AC) and are suitable for voltages up to 690V AC. The LDD series includes thermal-magnetic and electronic trip units for precise overload and short-circuit protection. Common accessories include auxiliary contacts, shunt trips, undervoltage releases, and motor operators. The compact design allows for easy installation in switchboards and distribution panels, with options for fixed or plug-in mounting.
Block 2: Applications and Sectors
LDD circuit breakers are widely used in industrial automation, power distribution, and building electrification. They are ideal for protecting cables, motors, transformers, and generators in manufacturing plants, data centers, commercial buildings, and renewable energy systems. Their robust construction ensures reliable operation in harsh environments, including high ambient temperatures and vibration-prone areas. The LDD series is also suitable for main and branch circuit protection in low voltage switchgear assemblies.
Block 3: Subcategories and Key Articles
The LDD category includes several subcategories such as LDD1, LDD2, and LDD3 series, each with specific current ratings and breaking capacities. Key article codes follow a pattern like LDD1-100A-3P, LDD2-250A-4P, and LDD3-630A-3P, where the number indicates the series, followed by rated current and pole count. For example, LDD1-160A-3P is a common model for branch circuits, while LDD3-1250A-4P is used for main feeders. These codes are standardized for easy identification and ordering.
Block 4: Business Benefits and Support
Electric Automation Network offers LDD circuit breakers with up to 65% discount compared to market prices, ensuring cost-effective procurement. We provide express worldwide shipping, typically within 24-48 hours, and real-time pricing on our multilingual portal. Our team of specialized engineers offers personalized technical support, including documentation, trip curve selection, and accessory configuration. This ensures you get the right product for your application with minimal downtime.
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