Overview
The Eaton Cutler-Hammer QC3030H is a proven thermal-magnetic circuit breaker from the Quicklag series, engineered for reliable overcurrent protection in 240 VAC electrical systems. This 3-pole, 30-ampere unit features a box lug terminal configuration and is certified to UL 489 and CSA standards. The QC3030H delivers 10,000 ampere interrupting rating (10 kAIC), making it suitable for residential, commercial, and light industrial applications requiring dependable circuit protection.
Key Features
- Thermal-magnetic trip mechanism for reliable protection against overcurrent and short-circuit conditions
- 3-pole configuration for balanced 3-phase load center installation
- Box lug terminals accommodate aluminum or copper conductors (14–10 AWG on line side; 14–4 AWG on load side)
- Cable-in/cable-out mounting design for flexible installation
- UL 489 and CSA certified for regulatory compliance in North American markets
- Compact footprint designed for standard DIN rail and load center applications
Technical Specifications
- Ampere Rating: 30 A @ 40 °C
- Voltage Rating: 240 VAC maximum
- Poles: 3
- Interrupting Rating: 10,000 A (10 kAIC)
- Trip Type: Thermal-Magnetic, Fixed
- Terminal Type: Box Lug
- Wire Size (Line): 14–10 AWG aluminum/copper
- Wire Size (Load): 14–4 AWG aluminum/copper
- Mounting: Cable-in/cable-out
- Series: Quicklag (Eaton Cutler-Hammer)
- Certifications: UL 489, CSA
- UPC: 786679240106
Typical Applications
The QC3030H is commonly deployed in:
- Commercial and industrial load centers requiring 240V 3-phase protection
- Distribution panels for lighting, heating, and motor control circuits
- Light industrial machinery and equipment control systems
- Standard electrical enclosures and fusebox replacements
- Retrofit and modernization projects requiring proven, UL-certified components
Compatibility & Replacements
Compatible With
- Eaton Cutler-Hammer load centers and distribution panels
- Standard DIN rail systems and enclosed panel applications
- 240 VAC single-phase and 3-phase electrical systems
- North American electrical installations (UL/CSA certified)
Replaces / Drop-In Replacement For
- Verify with system integrator before ordering. QC series breakers are designed for Eaton load centers; cross-compatibility with other manufacturers’ equipment should be confirmed based on your specific panel configuration.
Works With
- Eaton Cutler-Hammer Quicklag accessories and mounting kits
- Standard copper and aluminum conductor wire (per specifications)
- Traditional thermal-magnetic protection schemes (no digital/modular add-ons)
- UL 489-compliant North American electrical systems
