Eaton CHF140CS Circuit Breaker - 10 kAIC UL 489

Part Number: CHF140CS
Manufacturer
Eaton
Part number
CHF140CS

Quick Summary

The Eaton CHF140CS is a CH thermal magnetic circuit breaker designed for residential and light commercial protection. Engineers often battle nuisance trips and ambiguous labeling; this device helps minimize downtime with precise trip indicators and reliable long-term performance. UL 489 listed and HACR rated, it’s ideal for HVAC and general circuits, with clear trip indication for fast diagnostics. Compatible with Type CH Loadcenters and rated at 40 A, 120/240 V, it supports compact panel design and simplified commissioning. Clamshell packaging aids stocking and reduces damage in warehouse environments, helping procurement teams improve order accuracy and supplier efficiency. This combination of protection, compatibility, and value empowers engineers to design safer panels with fewer field changes. This combination also supports streamlined maintenance and predictable lifecycle costs.

Product Information

Extended Description

CHF140CS Eaton: Eaton CH thermal magnetic circuit breaker,Type CHF 3/4-Inch standard circuit breaker clamshell pack,Clamshell pack,40 A,10 kAIC,Single-pole,120/240V,CHF,Trip flag, common breaker trip,#14-2 AWG Cu/Al,Q30,CHF,Type CH Loadcenters
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHF140CS
UPC
786685532257
Product Length/Depth
6 in
Product Height
1.125 in
Product Width
4 in
Product Weight
0.3 lb
Warranty
Limited lifetime residential, 1 year commercial
Compliances
HACR Rated
Certifications
UL 489
Catalog Notes
HACR Rated, Single-Pole Requires One 2/4-Inch Space, With Trip Indication.
Used with
Type CH Loadcenters
Type
Type CHF 3/4-Inch standard circuit breaker clamshell pack
Special features
Clamshell pack
Amperage Rating
40 A
Voltage rating
120/240 V
Trip Type
Trip flag
Circuit breaker type
CHF
Interrupt rating
10 kAIC
Main circuit breaker
CHF
Wire size
#14-2 AWG Cu/Al
Number of poles
Single-pole
Quantity
30
Feature → Business Impact → Application: CH thermal magnetic protection delivers fast fault clearance with a 10 kAIC interrupt rating. This translates to enhanced equipment protection and minimized downtime for critical loads. Application: ideal for 40 A circuits in residential feeders and small commercial installations where reliable protection is essential. Feature → Business Impact → Application: The CHF140CS uses a compact Type CHF 3/4-inch frame in a clamshell pack, conserving valuable panel space. Business impact: easier inventory handling and faster field installs, reducing labor costs. Application: Type CH Loadcenters and space-constrained panels benefit from this packaging and form factor. Feature → Business Impact → Application: It carries a clear trip flag and indicator, enabling rapid fault diagnosis. Business impact: technicians locate and verify trips quickly, lowering diagnostic time and service dispatch costs. Application: HVAC and general electrical circuits where fast response improves uptime. Feature → Business Impact → Application: Wire-compatible with #14-2 AWG Cu/Al for straightforward field wiring. Business impact: simplifies installation and reduces rework, improving panel density and safety. Application: residential feeders and small business installations. Feature → Business Impact → Application: UL 489 certification and HACR rating ensure regulatory compliance and appropriate protection for HVAC loads. Business impact: mitigates compliance risk and supports warranty coverage. Application: building automation, metering, and commercial panels. Feature → Business Impact → Application: 40 A rating, 120/240 V, and 6 in length while staying within 1.125 in height and 4 in width ensure consistent fit in standard installations. Application: new panel designs and retrofits where space planning is critical.

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FAQs

CHF140CS is a single-pole device that requires one 2/4‑inch space inside Type CH Loadcenters. It fits in 6 in length, 4 in width, and about 1.125 in height, with a clamshell pack that eases handling and stocking.
It provides 40 A, 120/240 V operation, and a 10 kAIC interrupt rating. The unit is a Type CHF 3/4‑inch standard circuit breaker with a trip flag and HACR rating for HVAC loads.
Yes. The CHF140CS is HACR rated and UL 489 listed, ensuring compliance for HVAC and general circuits and compatibility with building standards.
CHF140CS is designed for Type CH Loadcenters, offering seamless integration with Eaton CH protection schemes and single‑pole protection in compact panel layouts.
Official documentation is available from Eaton: the CHF140CS datasheet, residential and light commercial catalog references, and the warranty guide linked in the product downloads section.