Blue Sea 7310 COTS Military Grade A-Series 5 Amp

The Blue Sea 7310 COTS Military Grade A-Series 5 Amp circuit breaker is a precision electrical protection device engineered to meet military specifications under 46 CFR marine and tactical equipment standards. This 5-amp magnetic-hydraulic trip-free breaker delivers reliable overcurrent protection in demanding environments where standard industrial components fall short, making it the choice for mission-critical power distribution systems in vessels, command centers, and field-deployed electrical networks.

Built around a two-pole metal toggle actuator, the 7310 handles voltages up to 277V AC or 65V DC with an interrupt capacity of 1500A AC and 7500A DC—specifications that reflect its design for high-reliability industrial and marine applications. The trip-free magnetic-hydraulic mechanism ensures the breaker will interrupt under fault conditions regardless of manual toggle position, preventing dangerous situations where an operator might hold the breaker closed during an overload event. Operating temperature range from −40°C to 85°C accommodates both arctic field operations and tropical maritime deployments without performance degradation.

This breaker is specified for applications where military procurement standards are non-negotiable—naval vessels, government installations, offshore platforms, and tactical support systems. The COTS (Commercial Off-The-Shelf) designation means it meets military-grade durability and quality control standards while leveraging proven commercial manufacturing. Operators and electrical technicians value the 7310 for its straightforward installation, predictable response characteristics, and the assurance that comes from a component certified to protect equipment in high-stakes environments where electrical failure creates cascading mission risk.