Overview
The Eaton Cutler-Hammer QC3100H is an industrial-grade Quicklag Type QC thermal-magnetic circuit breaker designed for heavy-duty commercial and industrial power distribution. This 3-pole, 100A, 10kAIC breaker operates at 240V with thermal-magnetic protection and mounts effortlessly into Eaton Quicklag panelboards and various industrial control enclosures. The non-interchangeable design ensures reliable overcurrent and short-circuit protection in demanding electrical environments.
Key Features
- Thermal-magnetic operating mechanism with 3-pole configuration
- HACR-rated component meeting stringent safety standards for modern facility infrastructure
- Accommodates 1 to 1/0 AWG copper or aluminum wire through standard box lugs
- Long time and instantaneous trip functions with feed-thru design
- Cable-in/cable-out terminal configuration for flexible installation
Technical Specifications
| Parameter | Value |
| Manufacturer | Eaton / Cutler-Hammer |
| Part Number | QC3100H |
| Series | Quicklag Type QC |
| Rated Current | 100A |
| Rated Voltage | 240V AC |
| Interrupt Capacity | 10kAIC @ 240V |
| Poles | 3-Pole (3 Phase) |
| Trip Function | Long-Time / Instantaneous |
| Mechanism | Thermal-Magnetic |
| Terminal Type | Cable-In/Cable-Out Lugs |
| Wire Size | 8 to 1/0 AWG |
| Dimensions (H × W × D) | 4.9″ × 3.8″ × 3.1″ |
| Weight | 1.2 lbs |
| Operating Temperature | 40°C |
| Certifications | UL Listed, CSA Certified |
Typical Applications
- Commercial power distribution and branch circuit protection
- Industrial control enclosures and load centers
- Data center and renewable energy infrastructure
- Marine vessel electrical systems
- Heavy industrial motor and equipment protection
Compatibility & Replacements
Compatible With
- Eaton Quicklag panelboards and industrial loadcenters
- Standard DIN-rail and panel-mount enclosures
- 3-phase electrical distribution systems rated 240V AC
- Facilities using Eaton Type QC breaker infrastructure
Replaces / Drop-In Replacement For
The QC3100H is a non-interchangeable type; verify compatibility with your original equipment specifications. Commonly paired 100A alternates include QC2100H (2-pole) and QC3100N (older generation equivalent), though direct substitution requires system integration verification.
Works With
- Eaton Quicklag panelboard systems
- EtherNet/IP-capable monitoring systems for remote circuit status
- Standard electrical protection coordination software
- Facility management and power distribution engineering tools
