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Eaton CH Mechanical Interlock for Loadcenters and Breakers
The Eaton CH Mechanical Interlock is engineered for use with Type CH 2-, 3-, and 4-pole breakers (clamshell) in CH loadcenters and breaker assemblies, providing a secure mechanical means of preventing simultaneous operation between a back-feed main breaker and the utility source. Rated 225 A with a three-phase configuration and an aluminum bus, this interlock is suited for NEMA 1 enclosure installations in commercial and industrial settings. It ships as a quantity of 10 hold-down kits used to secure the circuit breaker to the loadcenter for back-feed main application per NEC Article 384-16(g), giving electrical contractors a code-compliant solution for standby and generator interconnection projects.
Key Features
- Type: Mechanical Interlock accessory for Eaton CH loadcenters and breakers.
- Compatibility: Used with Type CH 2-, 3-, and 4-pole breakers (clamshell) for reliable fit and function.
- Amperage Rating: 225 A for dependable back-feed main protection.
- Durable Construction: Aluminum bus material engineered for consistent electrical performance.
- Enclosure Rating: NEMA 1 rating suited for standard indoor installations.
- Phase: Three-phase configuration for commercial and industrial power distribution.
- Interrupt Rating: 10 kAIC interrupt rating.
- Dimensions: 14.3 in product width, 34.1 in product length/depth, and 1.1 in product height.
- Hold-Down Kits: Quantity 10 hold-down kits secure the circuit breaker to the loadcenter for back-feed main application per NEC Article 384-16(g).
- Warranty: Backed by an Eaton limited lifetime warranty.
Certifications & Compliance
- NEMA 1 Enclosure Rating
- Complies with NEC Article 384-16(g) for back-feed main hold-down applications
Technical Specifications
- Product Type: Load Center
- Warranty: Limited lifetime
- Main circuit breaker: CH
Typical Applications
- Back-Feed Main Breaker Hold-Down Applications
- CH Loadcenter and Panelboard Assemblies
- Three-Phase Commercial and Industrial Electrical Installations
- Standby and Generator Interconnection Projects
- Panelboard and Load Center Wiring
- Renovation and New Construction Electrical Projects
Why Eaton?
Eaton engineers the CH Mechanical Interlock with an aluminum bus, a 225 A rating, a 10 kAIC interrupt rating, and a NEMA 1 enclosure to deliver dependable, code-compliant performance for back-feed main applications on CH loadcenters and breakers. Backed by a limited lifetime warranty, it is built for professional electrical installations that demand consistent, secure, and code-compliant operation.
Manufacturer Resources
Product Specs
- Product Width:
- 14.3 in
- Used with:
- Type CH for 2-, 3-, 4-pole breakers (clamshell)
- Amperage Rating:
- 225A
- Size:
- 3/4 in
- Product Length/Depth:
- 34.1 in
- Special features:
- Used with CH 3/4 in Loadcenters and Breakers
- Product Height:
- 1.1 in
- Product Type:
- Interlock
- Phase:
- Three-phase
- Warranty:
- Limited lifetime
- Main circuit breaker:
- CH
- Interrupt rating:
- 10 kAIC
- Bus material:
- Aluminum
- Configuration:
- NEMA 1 Enclosure
- Certifications:
- Contact Manufacturer
- Department:
- Electrical
- Product Material:
- Aluminum
- Product Group:
- Wiring Devices