MPD

MPD – Molded Case Circuit Breakers (MCCBs) for Industrial Power Distribution

Molded Case Circuit Breakers (MCCBs), commonly referred to as MPD in technical catalogs, are essential protective devices for low-voltage electrical installations. These compact yet robust units are designed to handle high current ratings, typically ranging from 16A to 1600A, with breaking capacities up to 100kA at 415V AC. Available in 3-pole (3P) and 4-pole (4P) configurations, they feature thermal-magnetic or electronic trip units for precise overload and short-circuit protection. The molded case construction ensures high dielectric strength and mechanical endurance, making them suitable for harsh industrial environments. Key parameters include rated operational voltage (Ue) up to 690V AC, rated insulation voltage (Ui) up to 1000V, and utilization categories like A or B for selective coordination. Accessories such as shunt trips, undervoltage releases, and auxiliary contacts enhance functionality.

These MCCBs are deployed across diverse sectors including manufacturing plants, commercial buildings, data centers, and renewable energy systems. They serve as main disconnectors in distribution boards, feeder protection in motor control centers (MCCs), and backup protection for downstream devices. In industrial automation, they safeguard critical loads like conveyors, pumps, and compressors against electrical faults. Their compact footprint allows integration into space-constrained switchgear assemblies, while compliance with IEC 60947-2 ensures global acceptance.

Our MPD category encompasses fixed, plug-in, and draw-out versions to suit various installation needs. Key subcategories include standard thermal-magnetic MCCBs for general distribution, electronic trip MCCBs for adjustable protection curves, and high-breaking capacity models for fault-prone networks. Article codes typically follow a pattern like MPD-3P-250A-50kA, indicating poles, current rating, and breaking capacity. Popular models include the MPD-3P-100A-25kA for lighting panels and MPD-4P-630A-65kA for main switchboards. Each unit is supplied with comprehensive technical documentation including time-current curves and wiring diagrams.

Partnering with Electric Automation Network ensures access to genuine MPDs at competitive prices with up to 65% discount off list. Our real-time pricing engine reflects current market rates, while express shipping delivers to any global destination within 48 hours. Dedicated application engineers provide personalized support for selection, coordination studies, and troubleshooting. Every order includes multilingual documentation and compliance certificates, eliminating procurement risks.