FY14015C | SQUARE D Circuit Breaker
SQUARE D · Circuit Breakers & Protection
Description The Square D FY14015C is a single‑pole (1 P), 15 A molded‑case circuit breaker of the I‑Line “FY” series, using thermal‑magnetic trip technology Technical Specifications Condition New/Never Used Surplus Brand SQUARE D Category Circuit Breaker Part Number FY14015C Subcategory Molded Case Circuit Breaker Amperage 15 Amp Voltage Rating 277 V AC Interrupting Capacity (AIC) 14 kA @ 277 VAC (also 14kA@240V) Maximum Magnetic Trip 600 Amp Trip Type Thermal Magnetic Functions LI - Long-Time and Instantaneous Circuit Breaker Type MCCB (Molded Case Circuit Breaker) Line Side Terminal Type I-Line (Plug-in Style) Load Side Terminal Type Lugs Frame F Frame Number of Poles 1 Pole Phase 1 Dimensions (L x W x H) 6.4" × 1.5" × 4.13" Weight 5 lbs Replacement Number 1134919 Information About FY14015C The FY14015C is part of Square D’s I-Line FY series of molded case circuit breakers (MCCBs), engineered for reliable branch protection in commercial and industrial power distribution systems. This breaker is rated for 15 amps, features a 1-pole thermal-magnetic trip mechanism, and operates at up to 277 VAC, making it ideal for lighting panels and other single-phase applications. Its I-Line plug-in construction ensures secure, tool-free mounting within I-Line panelboards, supporting faster installation and maintenance. The unit offers an interrupt rating of 14 kA at 277 VAC, suitable for medium-duty fault current environments, and is built within the robust F-frame housing format. Key Features: 15 Amp Protection: Provides standard branch circuit protection for single-phase 277 V AC loads. Thermal-Magnetic Trip Unit: Utilizes a long-time (thermal) and instantaneous (magnetic) trip mechanism for overload and short-circuit protection. I-Line Plug-In Mounting: Fast and secure connection to I-Line panelboards via plug-on line terminals, reducing wiring labor and enhancing safety. Single-Pole Configuration: Optimized for circuits that require only one current path—ideal for lighting or branch load protection. 277 VAC Operation: Supports commercial lighting and equipment loads in single-phase 277V distribution systems. High Interrupting Capacity: Rated at 14,000 AIC @ 277V AC, enabling safe interruption of moderate fault currents. AL50FA Terminal Lugs: Rugged load-side lug configuration allows connection of aluminum or copper conductors. Compact F-Frame Size: Slim 1.5" width and 4.13" height for space-saving installations; total length is 6.4". UL and CSA Certified: Complies with North American electrical safety and installation standards. The FY14015C simplifies integration into legacy I-Line panels with its compact F-frame format and plug-in mounting. Its solid interrupting capacity and thermal-magnetic protection make it a dependable choice for branch circuit protection in commercial and industrial settings where 277V single-phase systems are in use.
Brand: SQUARE D · Category: Circuit Breakers & Protection
Key features
- 15 Amp Protection: Provides standard branch circuit protection for single-phase 277 V AC loads.
- Thermal-Magnetic Trip Unit: Utilizes a long-time (thermal) and instantaneous (magnetic) trip mechanism for overload and short-circuit protection.
- I-Line Plug-In Mounting: Fast and secure connection to I-Line panelboards via plug-on line terminals, reducing wiring labor and enhancing safety.
- Single-Pole Configuration: Optimized for circuits that require only one current path—ideal for lighting or branch load protection.
- 277 VAC Operation: Supports commercial lighting and equipment loads in single-phase 277V distribution systems.
- High Interrupting Capacity: Rated at 14,000 AIC @ 277V AC, enabling safe interruption of moderate fault currents.
- AL50FA Terminal Lugs: Rugged load-side lug configuration allows connection of aluminum or copper conductors.
- Compact F-Frame Size: Slim 1.5" width and 4.13" height for space-saving installations; total length is 6.4".
- UL and CSA Certified: Complies with North American electrical safety and installation standards.
Specifications
| Manufacturer part number | FY14015C |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | SQUARE D |
| Category | Circuit Breaker |
| Part Number | FY14015C |
| Subcategory | Molded Case Circuit Breaker |
| Amperage | 15 Amp |
| Voltage Rating | 277 V AC |
| Interrupting Capacity (AIC) | 14 kA @ 277 VAC (also 14kA@240V) |
| Maximum Magnetic Trip | 600 Amp |
| Trip Type | Thermal Magnetic |
| Functions | LI - Long-Time and Instantaneous |
| Circuit Breaker Type | MCCB (Molded Case Circuit Breaker) |
| Line Side Terminal Type | I-Line (Plug-in Style) |
| Load Side Terminal Type | Lugs |
| Frame | F Frame |
| Number of Poles | 1 Pole |
| Phase | 1 |
| Dimensions (L x W x H) | 6.4" × 1.5" × 4.13" |
| Weight | 5 lbs |
| Replacement Number | 1134919 |
| Product type | Circuit Breaker |
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