Square D FY14060B 60A 1-Pole 277 V Circuit Breaker

Engineered by Square D, the FY14060B is a dependable 60-amp, single-pole circuit breaker designed for 277-volt electrical systems. This compact protective device fits commercial panels where reliable overload and short-circuit protection are essential for everyday operation of lighting and power circuits.

Key specifications at a glance

• Current rating: 60 A
• Pole configuration: 1-Pole
• Voltage rating: 277 V
• Part number: FY14060B
• Brand: Square D

Why this particular breaker matters

277 V circuits are common in commercial buildings for lighting and some power distribution. The Square D FY14060B is purpose-built to protect those specific circuits with a straightforward, one-pole design that overlooks nothing in its amperage range. By matching a precise 60-amp capacity and 277-volt operation, this breaker helps ensure that fault conditions are isolated quickly, reducing the risk of damage to downstream devices and minimizing downtime.

Ideal use cases

• Protection for 277 V lighting feeders in offices, retail spaces, hospitals, and other commercial environments
• Replacement for a 60A, single-pole breaker within compatible Square D panels
• Upgrading or maintaining electrical distribution where a like-for-like FY-series part is required

Installation and compatibility guidance

To ensure safe, reliable operation, install the FY14060B in panels that accommodate 1-pole, 277-volt breakers and that support a 60-amp protective device. Verify that the panel’s labeling allows a single-pole 277 V breaker of this rating, and always de-energize equipment before replacement. If you’re pairing it with existing equipment, confirm the part number and amperage match your circuit design to preserve protective coordination and trip reliability.

What makes Square D stand out

Choosing the FY14060B means leaning on a trusted heritage of electrical protection. This single-pole, 60-amp device is built to endure the demands of commercial environments, delivering consistent interrupting performance when a fault occurs. Its straightforward design and exact compatibility with 277 V circuits help you maintain orderly, safe electrical distribution without guesswork or aftermarket mismatches.

Practical tips for context and best use

• Keep a small inventory of common replacements—FY14060B fits in places where a like-for-like 60 A, 1-pole, 277 V breaker is required
• When performing panel work, document amperage ratings and voltage specs to ensure proper coordination with adjacent breakers
• Store replacement breakers in a clean, dry location to prevent corrosion or movement that could affect performance