The ABB TEY225ST12 is a compact, bolt-on circuit breaker designed for use in grounded 480Y/277 Vac systems. This one-inch-wide per pole breaker is built for versatility and can be easily mounted with its bolt-on base, making it a solid choice for various lug-to-lug applications. Featuring quick-make and quick-break mechanisms along with common trip bars, the TEY series ensures dependable protection and clear trip indication for easy troubleshooting. Available in 1, 2, and 3-pole configurations, this model can also be equipped with accessories like auxiliary contacts and shunt trips for added functionality. Distributed by BSP Automation, the TEY225ST12 delivers reliable performance in a compact package—a real workhorse in industrial setups.