Eaton E2MM3800WU66 Mining MCCB - 1000Y/577 Vac

Interchangeable thermal-magnetic trip (T207) provides precise, adaptable protection. This feature reduces nuisance trips during load transients and safeguards expensive motors and feeders in mining circuits. In practice, technicians set the trip to match the system’s fault characteristics, improving uptime in variable mining loads. High amperage and robust interrupt ratings support safe operations. With an 800 A rating and 35 kAIC at 480 V (and 25 kAIC at 600 V), the E2MM3800WU66 clears faults quickly, minimizing arcing and damage in underground cables and switchgear. This translates to fewer unplanned outages and lower repair costs. M-frame, three-pole, and compact form factor simplify panel integration. Without terminals, installation is streamlined in retrofit projects or legacy enclosures, reducing wiring errors and installation time while maintaining compatibility with mine electrical rooms. Undervoltage release at 120 Vac with a mining rear and left pigtail enhances safe startup and lockout. This feature helps prevent unexpected energization during maintenance, contributing to personnel safety and regulatory compliance. DC and AC capacity coverage—1000Y/577 Vac and 250 Vdc—accommodates mixed-energy systems common in mining plants. Coupled with Eaton's mining documentation, it supports safety case development and ongoing compliance auditing. Ease of maintenance and serviceability—the device is a complete breaker in the M-frame with documented service guidelines, enabling service centers to stock common parts and minimize downtime.