Eaton CL240CS Thermal Magnetic Circuit Breaker - UL 489
Part Number: CL240CS
Quick Summary
The Eaton CL240CS thermal magnetic circuit breaker provides reliable overcurrent protection for CH loadcenters in commercial and industrial panels. This 1-inch classified replacement breaker simplifies modernization by fitting legacy systems without costly rewiring. Replacing nonconforming devices often leads to nuisance trips or compatibility gaps; CL240CS mitigates that risk with a common trip and a two-pole design. UL 489 certification ensures code compliance and safety in demanding environments. By offering a robust 40 A rating at 120/240 V and a compact clamshell pack, it streamlines installation for maintenance teams, reduces downtime, and supports scalable protection across panel fleets. Use with Type CH loadcenters and compatible bus configurations for best results.
Product Information
Extended Description
CL240CS Eaton: Eaton Classified 1" thermal magnetic circuit breaker, Type CL 1-Inch classified replacement breaker clamshell pack, 40 A, 10 kAIC, two-pole, 120/240V, CL, Common breaker trip, #14-4 AWG Cu/Al, Q30, CL, Type CH loadcenters
Product Name
Eaton Classified 1" thermal magnetic circuit breaker
Catalog Number
CL240CS
UPC
782114753088
Product Length/Depth
7.25 in
Product Height
6.5 in
Product Width
4.48 in
Product Weight
2.18 lb
Certifications
UL 489
Catalog Notes
Replacement for Square D Homeline, GE Type THQ, Crouse-Hinds Type MP, Thomas and Betts Type TB, Murray Type MP, ITE/Siemens Type QP. Requires Two 1-inch (25.4 mm) spaces.
Used with
Type CH Loadcenters
Type
Type CL 1-Inch classified replacement breaker clamshell pack
Special features
Clamshell pack
Amperage Rating
40 A
Voltage rating
120/240 V
Trip Type
Common breaker trip
Circuit breaker type
CH
Interrupt rating
10 kAIC
Main circuit breaker
CL
Wire size
#14-4 AWG Cu/Al
Number of poles
Two-pole
Quantity
30
Standard circuit breaker catalog numbers - 5651B63SH09
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - CL240CS
With a 40 A amperage rating and a 120/240 V supply, the CL240CS delivers reliable overload and short-circuit protection for CH loadcenters. Its two-pole, common-trip design minimizes nuisance trips and coordinates with other devices in a panel. UL 489 certification ensures code compliance and safety in commercial and industrial installations. As a classified replacement, it aligns with legacy breakers across multiple brands, reducing engineering guesswork during panel upgrades. The clamshell-pack presentation supports easy stocking and quick field swaps, improving maintenance turnaround. It is designed for direct fit with Type CH loadcenters and supports 1-inch space requirements, enabling straightforward wiring with #14-4 AWG Cu/Al. By replacing aging devices with CL240CS, you gain enhanced uptime and simpler spare-parts management for larger panel fleets.
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FAQs
The CL240CS is a two-pole, 1-Inch classified replacement designed for Type CH Loadcenters and requires two 1-inch spaces within the panel. It wires with #14-4 AWG Cu/Al and fits standard CH bus configurations. Ensure the panel is rated for 40 A and that field wiring conforms to NEC requirements. Proper torque on terminals and secure mounting are essential for consistent performance.
Key specs include a 40 A amperage rating, 120/240 V voltage rating, two-pole construction, common breaker trip, and a 10 kAIC interrupt rating. The device is UL 489 listed and serves as a classified replacement for multiple legacy breakers, enabling predictable protection and cross-brand compatibility in CH Loadcenters.
Yes, the CL240CS is marketed as a classified replacement for CH Loadcenters and supports residential and light commercial applications where legacy breakers require a compatible, safe substitute. It is designed to replace brands like Square D Homeline and GE THQ in appropriate CH and similar loadcenters, minimizing rewiring and downtime during upgrades.
The CL240CS carries UL 489 certification, which confirms the product meets recognized safety and performance standards for circuit breakers. This certification is essential for code compliance, insurance acceptance, and reliable operation in commercial and industrial electrical installations, ensuring safe interruption and coordination with other protective devices.
Using the CL240CS reduces downtime during upgrades by providing a guaranteed, compatible replacement for legacy breakers. Its cross-brand compatibility and standardized 1-inch footprint simplify stocking and field service, lowering spare-parts costs and accelerating maintenance cycles while delivering dependable protection for CH Loadcenters over the long term.