FMB1200

The nVent FMB1200 interlock bar is a precision-engineered mechanical linkage designed to synchronize slave doors with a master door in multi-door enclosure systems. Part of nVent’s industry-leading Hoffman interlocking system portfolio, this zinc-plated mild steel bar ensures reliable, tamper-resistant door sequencing for critical applications where safety and operational integrity are paramount. Engineered for use with MCF/MCS enclosures, the FMB1200 provides a robust solution for facilities requiring controlled access and compliance with stringent safety protocols. This interlock bar mechanically connects a system actuator to the slave door interlocking kit, ensuring that slave doors can only be opened after the master door has been unlocked. This sequential locking mechanism is essential in environments such as data centers, telecommunications hubs, industrial control rooms, and utility substations, where unauthorized access must be prevented and operational workflows must follow strict protocols. The FMB1200 is particularly valuable in applications requiring compliance with OSHA, NFPA 70E, or IEC 62208 standards for electrical safety and equipment protection. Manufactured from high-strength mild steel and finished with a durable zinc plating, the FMB1200 offers exceptional corrosion resistance and mechanical durability, even in harsh or high-traffic environments. The bar measures 17mm x 1060mm x 17mm, making it ideal for medium to large enclosures where precise alignment and secure mounting are required. Each FMB1200 includes mounting hardware, ensuring quick and reliable installation without the need for custom fabrication or additional components. nVent, a global leader in electrical and thermal management solutions, brings decades of expertise to the design and manufacture of interlocking systems. The Hoffman brand, now part of the nVent portfolio, is synonymous with reliability and innovation in enclosure access control. Professionals across industries—from IT infrastructure and energy management to manufacturing and healthcare—trust nVent’s interlocking solutions to safeguard personnel and equipment while maintaining operational efficiency. When selecting an interlock bar, consider the door width of your enclosure and the number of slave doors requiring synchronization. The FMB1200 is designed for use with MCF/MCS enclosures and is compatible with nVent’s FMA system actuator and FMS slave door interlock kit, forming a complete, integrated access control system. Installation is straightforward: mount the bar to the enclosure frame and connect it to the actuator and slave door interlocks using the included hardware. Regular inspection and maintenance ensure long-term performance and compliance with safety regulations. Choose the nVent FMB1200 interlock bar for a dependable, code-compliant solution that enhances security and operational control in your facility. Backed by nVent’s global support network and a commitment to quality, the FMB1200 delivers the performance and peace of mind required in mission-critical environments.