Siemens 480Y/277 - 70A, 277VAC, 3-Pole, Circuit Breaker

Engineered for industrial reliability, the Siemens 480Y/277 - 70A, 277VAC, 3-Pole Circuit Breaker delivers precise overcurrent protection across three phases in a rugged, compact package. Built to withstand the demands of panelboards, switchboards, and control panels, it helps keep distribution systems running safely and with minimal downtime.

Three-pole protection for balanced three-phase systems — The 3-pole design protects all phases simultaneously, simplifying wiring and ensuring coordinated protection within distribution panels and motor control centers.

277VAC, 70A performance you can rely on — Rated for 70A continuous current and up to 277V, this breaker accommodates modern commercial lighting, HVAC, and machine-control loads that operate on 277VAC circuits, delivering fast, predictable fault isolation when needed.

Ideal for industrial, commercial, and OEM applications where dependable protection and safe operation are critical in power distribution and control environments.

• New installations in panelboards or switchboards for 480Y/277V systems
• Retrofits or replacements in motor control centers requiring reliable three-phase protection
• OEM equipment enclosures that demand a compact, durable 3-pole circuit breaker
• Control panels and lighting/commercial distribution applications that rely on stable 277VAC protection

• Current rating: 70A
• Voltage rating: 277VAC
• Poles: 3-Pole
• Breaker type: Circuit Breaker

With Siemens, you’re pairing the trusted engineering and consistency that power engineers rely on for critical infrastructure. This 480Y/277V, 70A, 3-Pole breaker is ready to reinforce safety, reliability, and uninterrupted service in your electrical distribution and control systems.