Emerson NFS 815 1321/016 Circuit Breaker 16A Power Control & Fuse Module

The Emerson NFS 815 1321/016 is a 16-Ampere magnetic-hydraulic circuit breaker engineered for integration into Power Control & Fuse Modules within professional DC power distribution systems. This module is designed to provide robust overcurrent and short-circuit protection for high-load telecommunications equipment, such as powerful radio units, fan trays, and converged infrastructure blades. The core advantage of its magnetic-hydraulic mechanism is the ability to provide precise trip characteristics regardless of ambient temperature, ensuring consistent protection in environments ranging from high-density data centers to unconditioned outdoor telecommunications cabinets.Rated for DC voltages up to 80V, the NFS 815 1321/016 incorporates advanced arc-quenching technology to protect internal contacts during fault events and ensure a long operational lifespan. The module’s slimline mechanical design is optimized for high-density power shelves, allowing for maximized circuit protection within limited cabinet space. It features a reliable toggle actuator for manual switching and provides an immediate visual indication of the circuit status. The high-performance electrical interfaces are designed for low contact resistance, which minimizes voltage drops and thermal buildup during sustained high-current operation.
Designed for carrier-grade reliability, the NFS 815 1321/016 complies with major international safety standards, including UL and CE. Its "trip-free" architecture ensures that the circuit will be successfully interrupted under fault conditions even if the manual handle is held in the "ON" position. The robust construction is resistant to mechanical shock and vibration, making it a dependable choice for mobile switching centers and remote sites. This 16A module is an essential component for granular DC distribution management, offering critical safety and easy fault isolation in mission-critical telecommunications networks.