Eaton CL120CS Classified 1-Inch Circuit Breaker - UL 489
Part Number: CL120CS
Quick Summary
Eaton CL120CS thermal magnetic circuit breaker provides reliable overcurrent protection for CH load centers. In demanding control panels, compatibility gaps and nuisance trips can slow maintenance and drive downtime. UL 489 certification and UL Classified status help ensure safety, interchangeability, and certified performance across multiple panel brands. This 1-inch, 20 A, single-pole device operates at 120/240 V and accepts copper or aluminum conductors up to #14-4 AWG, streamlining installation. By standardizing on a classified replacement like CL120CS, procurement becomes simpler and maintenance cycles become more predictable, delivering lower total cost of ownership. Designed for a 1-inch panel space, it remains compatible with a broad range of CH-format load centers.
Product Information
Extended Description
CL120CS Eaton: Eaton Classified 1" thermal magnetic circuit breaker, Type CL 1-Inch classified replacement breaker clamshell pack, 20 A, 10 kAIC, single-pole, 120/240V, CL, #14-4 AWG Cu/Al, Q30, CL, Type CH loadcenters
Product Name
Eaton Classified 1" thermal magnetic circuit breaker
Catalog Number
CL120CS
UPC
782114753033
Product Length/Depth
7.25 in
Product Height
6.5 in
Product Width
4.48 in
Product Weight
0.35 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 1-inch (25.4 mm) space.
Used with
Type CH Loadcenters
Type
Type CL 1-Inch classified replacement breaker clamshell pack
Special features
Clamshell pack
Amperage Rating
20 A
Voltage rating
120/240 V
Circuit breaker type
CH
Interrupt rating
10 kAIC
Main circuit breaker
CL
Wire size
#14-4 AWG Cu/Al
Number of poles
Single-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 - CL120CS
The CL120CS is a 1-inch classified replacement breaker designed for Type CH load centers, enabling fast cross-brand swaps without panel rework. This feature reduces spare-parts inventories and procurement complexity, shortening downtime during maintenance. It is particularly valuable in mixed-panel environments where switching brands is common and predictability matters for uptime. Designed for a 1-inch panel space, it remains compatible with a broad range of CH-format load centers. Electrical ratings align with common control power circuits: 20 A, 120/240 V, and a 10 kAIC interrupt capacity. This combination delivers reliable fault interruption for typical machine controls while meeting safety and code expectations. The unit supports single-pole configurations, simplifying protection schemes in compact automation panels. It is designed to integrate smoothly with CH load centers, reducing retrofit effort and project risk. Wire compatibility is broad, supporting #14-4 AWG Cu/Al conductors. This simplifies field wiring and reduces termination errors in cramped panels. For installers, CH load-center compatibility plus a 1-inch footprint means straightforward swap-outs during retrofits. An available clamshell pack eases handling in the warehouse and on site, protecting the breaker during transport and making replacement quick. The packaging supports safer stocking in service vehicles, reducing time spent locating the right unit. These packaging advantages translate to measurable maintenance efficiency gains. UL 489 certification ensures compliance with national safety standards, while UL Classified status signals interchangeability across multiple panel families. The catalog notes explicitly list replacements for Square D Homeline, GE THQ, Crouse-Hinds MP, Thomas and Betts TB, Murray MP, and ITE/Siemens QP, with a required 1-inch installation space.
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FAQs
Yes. The CL120CS is built as a classified 1-inch replacement for Type CH load centers and supports cross-brand interchangeability. It is designed to fit in standard 1-inch spaces and accepts #14-4 AWG Cu/Al conductors, enabling swaps in mixed-panel environments without panel modification or rewiring.
The CL120CS provides a 20 A amperage rating, 120/240 V voltage rating, and a 10 kAIC interrupt rating. These specs ensure reliable protection for typical automation and control circuits while meeting safety and code requirements for industrial applications.
Use the CL120CS for CH load centers and similar panel ecosystems requiring a classified 1-inch breaker. It is suitable for low- to mid-power control circuits in industrial plants, and its cross-brand compatibility supports retrofits in environments with mixed-brand components.
The CL120CS carries UL 489 certification and UL Classified status, signaling compliance with recognized safety standards and interchangeability across multiple panel families. This helps streamline code compliance, procurement, and maintenance in regulated industrial environments.
Using a classified, cross-brand compatible breaker reduces spare-parts diversity and simplifies stocking. The clamshell packaging protects the unit during transit and facilitates quick field replacements, translating to lower maintenance downtime and a faster return on investment for panel modernization projects.