Overview
The Eaton FS340015A Type FS molded case circuit breaker is designed for three-phase industrial and commercial electrical systems. This 480VAC, 3-pole, 15A breaker delivers thermal-magnetic protection with a 14kA interrupting capacity at 480V, making it suitable for branch circuit protection, motor control, and general power distribution. The bolt-on mounting design and factory-installed load-side lug terminals simplify installation in panelboards and switchgear enclosures.
Key Features
- Three-pole design for balanced three-phase power protection
- Thermal-magnetic trip mechanism provides fast fault detection and clearing
- 14kA AIC rating at 480V delivers reliable fault interruption capability
- Bolt-on mounting compatible with FS series and standard DIN rail enclosures
- Load-side lug terminals for direct connection to panel busbars and distribution equipment
- Type FS frame ensures compatibility with legacy and modern industrial panels
Technical Specifications
- Voltage Rating: 480 VAC
- Current Rating: 15 Amperes
- Poles: 3 (Three-phase)
- Interrupting Capacity (AIC): 14,000A @ 480VAC
- Type/Frame: FS (molded case)
- Mounting: Bolt-on
- Terminal Type: Load-side lug terminals
- Trip Function: Thermal-magnetic (Long-Time and Instantaneous)
- Phase: 3-Phase AC
- Weight: Approximately 4.5 lbs
- Certifications: UL 489, NETA, ANSI C37
Typical Applications
- Three-phase motor branch circuit protection in industrial facilities
- Power distribution in manufacturing and process automation systems
- Secondary panelboard protection in commercial buildings and data centers
- Equipment protection for compressors, pumps, and conveyors rated at 480V
- Industrial control cabinet wiring protection
- Retrofit and replacement in existing Eaton/Cutler-Hammer switchgear
Compatibility & Replacements
Compatible With
- Eaton Cutler-Hammer FS series panelboards and enclosures
- Standard DIN rail and bolt-on breaker configurations
- Three-phase power distribution systems rated 480VAC
- Industrial motor control centers and switchgear
Replaces / Drop-In Replacement For
- Original Eaton FS340015 (earlier revision)
- Westinghouse GHB3015 (mechanical equivalent)
- Direct replacement for identical part number FS340015A
Works With
- Eaton/Cutler-Hammer control systems and overcurrent protection schemes
- NEMA and IEC-rated three-phase motor starters
- Power monitoring and metering systems compatible with molded case breakers
- Auxiliary trip devices and shunt coils (if original design allows)
