Schneider Electric Masterpact NT12H1

The Schneider Electric Masterpact NT12H1 is a high‑performance low‑voltage air circuit breaker engineered to deliver dependable protection, precise fault interruption, and rugged operational reliability for industrial, commercial, and utility power distribution systems. As part of the reputable Masterpact series from Schneider Electric — a global leader in energy management and automation — this breaker blends advanced electronic protection technology with robust mechanical construction to support demanding electrical environments.

Designed for mid‑to‑high current applications, the Masterpact NT12H1 is ideal for main and feeder circuits in switchgear assemblies, distribution panels, motor control centers, data centers, manufacturing plants, infrastructure projects, and large commercial facilities where circuit protection and system continuity are essential. Its reliable interrupting capability enables fast clearing of overloads, short circuits, and other electrical faults, helping to safeguard downstream equipment and maintain stable system operation.

The breaker incorporates an advanced electronic trip unit that provides configurable protection functions, including long‑time, short‑time, instantaneous, and optional ground‑fault elements. These adjustable settings allow engineers to fine‑tune protective coordination with upstream and downstream protective devices, enhancing selectivity, reducing nuisance trips, and improving overall safety and system performance.

Constructed with a rugged contact system, high‑performance arc‑interruption technology, and a dependable operating mechanism, the Masterpact NT12H1 supports frequent switching operations and extended service life even under heavy load conditions. Its modular and accessible design simplifies installation, inspection, routine maintenance, and future upgrades — helping to lower lifecycle costs and minimize unplanned downtime.

Optional accessories such as auxiliary contacts, shunt trips, undervoltage releases, and communication modules enable seamless integration with advanced power monitoring, automation, and remote diagnostics systems. This flexibility makes the breaker suitable for modern intelligent power distribution and energy management solutions.

Engineered to comply with rigorous international safety and performance standards, the Schneider Electric Masterpact NT12H1 offers a balanced combination of protection intelligence, mechanical durability, and flexible configuration — making it a trusted solution for low‑voltage power distribution systems where reliability, safety, and performance are key priorities.