Description
For the absolute pinnacle of high-current electrical protection, look no further than the 800AMP 4-Pole YEM3Z Moulded Case Circuit Breaker (MCCB). This masterfully engineered device is designed for the most critical and demanding three-phase plus neutral (TPN) systems, where both immense power and complete circuit isolation are non-negotiable. Serving as the main breaker for data centers, hospitals, large industrial facilities, and prime power generation plants, this 800A 4-pole MCCB offers the highest standard of safety and reliability available.
At 800 amps, the integrity of every conductor is vital. This MCCB provides robust, individually calibrated protection for all three phase lines and the neutral conductor. The fourth pole is not merely a switch; it’s a fully functional protective element. This is essential in systems with significant non-linear loads, where harmonic currents can turn the neutral into a dangerous, overheating conductor. The 800A 4-pole YEM3Z eliminates this risk entirely. In the event of any fault, it guarantees the simultaneous disconnection of all four poles, ensuring the system is completely de-energized and safe for personnel.
Key Features & Benefits:
- Uncompromising Four-Pole Protection: Provides complete overload and short circuit protection for L1, L2, L3, and Neutral. This is the definitive safety standard for critical TPN systems, preventing neutral-related hazards and ensuring full isolation as required by many electrical codes and applications (e.g., ATS).
- Massive 800A Capacity: Built to be the heart of your power distribution system, this MCCB can handle the main incoming supply for the largest facilities, protecting the entire electrical infrastructure from faults at the source.
- Advanced Electronic Trip Unit with Full Adjustability: This premium breaker features a sophisticated electronic trip unit, allowing for precise configuration of multiple protection parameters (Long-Time, Short-Time, Instantaneous, and often Ground Fault). This enables perfect system coordination (selectivity), minimizing the impact of faults and maximizing uptime.
- Superior Breaking Capacity: Engineered to withstand and extinguish the most powerful electrical faults, the 800A YEM3Z has an exceptionally high kA rating. It can safely manage the immense energy of a short circuit, preventing catastrophic damage to your switchgear and connected equipment.
- Designed for Ultimate Reliability and Longevity: The MCCB is constructed from high-grade, durable materials to ensure flawless performance over a long service life. Its robust design withstands the thermal and mechanical stresses inherent in high-current applications.
- Ready for Smart Grid Integration: Often equipped with communication modules (e.g., Modbus, Profibus), this MCCB can integrate seamlessly into a centralized Power or Building Management System. This provides real-time data on energy consumption, power quality, and breaker status for advanced diagnostics and energy efficiency strategies.
- Globally Certified for Peace of Mind (IEC 60947-2): Conformance with the highest international standards for safety and performance is a given. This certification is your assurance that you are installing a product of world-class quality and reliability.
The 800AMP 4-Pole YEM3Z MCCB is more than a protective device; it is the ultimate assurance of power integrity. It delivers the strength to manage colossal electrical loads and the intelligence to protect every part of your system with surgical precision. For professionals who oversee mission-critical infrastructure, this breaker is the final word in safety, reliability, and control.
