The ABB TEYL1030B is a reliable circuit breaker designed for use in grounded 480Y/277 Vac systems. This compact unit features a one-inch wide pole and a bolt-on mounting base, making it versatile enough for a variety of setups, including lug-to-lug breaker applications. Known for its quick-make/quick-break mechanism, the TEYL series ensures dependable operation and safety, with common trip bars and easily visible trip indicators. Available in single, double, and triple pole options, the 2- and 3-pole versions can be customized with accessories like auxiliary contacts, shunt trips, undervoltage releases, or bell alarms. Rated at 30 amps and 65kA interrupting capacity, this breaker packs a serious punch in a compact form. Distributed by BSP Automation, the TEYL1030B is a solid choice for those who want efficient, trustworthy protection—no gimmicks, just robust performance.