STXT06S1004X

The Mersen Surge-Trap® Type 1 XT Series represents the pinnacle of surge protection technology for 240V three-phase delta electrical systems, engineered to deliver uncompromising defense against transient voltage events. At its core, this advanced surge protector incorporates Mersen's proprietary TPMOV® (Thermal Protected Metal Oxide Varistor) technology, which provides superior clamping performance while automatically disconnecting in the event of thermal overload—a critical safety feature that distinguishes it from conventional surge arrestors. The XT Series is specifically designed for 240V 3P Delta systems, making it an ideal solution for industrial facilities, commercial buildings, data centers, and utility service applications where reliable power quality is non-negotiable. Installation flexibility is a hallmark of the XT Series, offering professionals the choice between line-side or load-side mounting configurations. This versatility enables seamless integration at multiple points within the electrical infrastructure, from the main service entrance to downstream distribution panels and branch circuits. The ability to install on either side of the main breaker simplifies retrofitting into existing systems while maintaining optimal protection levels. For new construction projects, the XT Series can be strategically positioned to create a layered defense strategy, protecting sensitive equipment from both external surges (lightning, grid switching) and internal transients (motor starts, capacitor switching). Mersen’s TPMOV® technology ensures that the surge protector not only responds rapidly to overvoltage conditions but also includes built-in thermal protection to prevent catastrophic failure. This dual-layer safeguard is particularly critical in industrial environments where downtime is costly and equipment replacement expenses can be prohibitive. The XT Series is UL 1449 4th Edition Listed, meeting the most stringent safety standards for Type 1 surge protective devices, which are required for installation on the line side of the service equipment in accordance with NEC Article 285. Typical applications span a wide range of industries, including manufacturing plants, healthcare facilities, telecommunications hubs, and renewable energy systems where three-phase delta configurations are standard. In data centers, the XT Series protects critical IT infrastructure from voltage spikes that could corrupt data or damage servers, while in industrial settings, it safeguards variable frequency drives (VFDs), PLCs, and motor control centers from destructive transient events. The product’s robust construction and compliance with international standards (IEC 61643-11, IEEE C62.41) make it suitable for both indoor and outdoor installations, provided proper NEMA-rated enclosures are used. Selecting the right surge protector involves evaluating several factors, including system voltage, fault current ratings, and the specific transient environment. The XT Series is rated for 240V systems with a maximum continuous operating voltage (MCOV) of 240V, making it compatible with common industrial and commercial electrical systems. Its design accommodates a maximum discharge current (Imax) of 100kA per phase, ensuring resilience against even the most severe surge events. Professionals should also consider the let-through voltage (VPR) and response time, both of which are optimized in the XT Series to minimize stress on downstream equipment. Mersen’s reputation as a leader in electrical protection solutions is built on decades of innovation and reliability. The company’s Surge-Trap® line has become the benchmark for industrial-grade surge protection, trusted by engineers and facility managers worldwide. With a global presence and a commitment to quality, Mersen provides not only superior products but also comprehensive technical support, including application engineering assistance and compliance documentation. The Type 1 XT Series surge protector is backed by a limited warranty, reflecting Mersen’s confidence in its performance and durability. For facilities where power quality is a mission-critical concern, the Mersen Surge-Trap® Type 1 XT Series offers a proven solution that combines advanced technology, flexible installation options, and unmatched safety. Whether deployed at the service entrance or integrated into a comprehensive power management strategy, this surge protector delivers the reliability and protection required to maintain operational continuity and extend the lifespan of connected equipment. Trust Mersen to safeguard your electrical infrastructure with a product that sets the standard for performance and safety in the industry.