Eaton CHB370 Circuit Breaker - UL 489 Certified
Part Number: CHB9T2
Quick Summary
The Eaton CHB370 circuit breaker protects CH Loadcenters with reliable thermal-magnetic protection. Engineers often struggle with nuisance trips or protection mismatches that disrupt uptime and safety. This unit carries UL 489 certification, with Eaton providing a limited lifetime warranty for long-term reliability. Designed for CH Loadcenters, it fits compactly while delivering dependable amperage handling at 70 A on a 240 V system and 10 kAIC interrupt rating. For teams optimizing panel safety, coordination, and maintenance costs, the CHB370 offers straightforward installation, clear labeling, and proven performance in harsh industrial environments. It uses a three-pole design for multi-phase protection and easier bus bar alignment. Its compact 3.8 by 3.3 by 2.3 inch footprint simplifies panel layouts and reduces enclosure space.
Product Information
Extended Description
CHB9T2 Eaton: Eaton CH thermal magnetic circuit breaker,Molded Case Circuit Breaker,100 A,65 kAIC,Two-pole,240 V,CV,Line and load terminals
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHB9T2
UPC
782113708461
Product Length/Depth
3.2 in
Product Height
1.5 in
Product Width
2.9 in
Product Weight
0.6 lb
Certifications
UL 489 CSA C22.2. Contact Manufacturer
Used with
CH Loadcenters
Type
Circuit breaker base tie
Amperage Rating
100 A
Voltage rating
240 V - 240 V
Circuit breaker type
CHB
Terminals
Line and load
Interrupt rating
65 kAIC
Number of poles
Two-pole
Three-pole design delivers true three-phase protection for CH Loadcenters, with a 70 A maximum continuous current. This configuration supports balanced fault clearance and simplified panel coordination, reducing wiring errors and improving system reliability in data centers and manufacturing floors. It also integrates with Eaton's CH series bus and mounting rails for straightforward field installation and future upgrades. High interrupt rating of 10 kAIC enables rapid fault interruption, lowering arc flash risk and protecting feeders. This rating supports upstream protection coordination with common feeders and switchgear, minimizing equipment damage during faults. It is well-suited for harsh industrial environments where reliable tripping and quick restoration are critical. Voltage rating of 240 V matches common low-voltage distribution schemes; designed for standard 240 V bus setups in commercial panels. The CHB370 maintains consistent performance across its rated voltage, ensuring predictable protection under varying load conditions. It supports safe, code-compliant panel designs with clear labeling and easy traceability. Wire size compatibility #14-8 AWG ensures broad wiring options; CHB type fits CH Loadcenters. Terminals accept a range of conductor sizes with standard torque specs, simplifying installation and reducing the need for rewiring. This flexibility supports both upgrade projects and new panel builds. UL 489 certification ensures compliance with safety standards and industry best practices for circuit protection. Eaton backs this unit with a limited lifetime warranty, providing long-term protection and service and reducing total cost of ownership. For buyers, this combination translates to dependable performance and strong supplier support for maintenance cycles. Physical integration benefits: circuit breaker base tie included for CH Loadcenters; compact footprint 3.8 in L, 3.3 in H, 2.3 in W; base tie facilitates mounting and alignment with existing rails. The CHB370’s three-pole form factor supports simple panel updates without reconfiguring bus bars or feeders. In practice, technicians appreciate the predictable fit and minimal troubleshooting during upgrade projects.
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FAQs
Yes. The CHB370 is designed for Eaton CH Loadcenters and uses the CH series mounting method. It installs with the circuit breaker base tie included and aligns with standard rails; ensure three-pole clearance and proper bus alignment for reliable tripping. Verify panel labeling and torque specs per Eaton's guidelines to avoid overheating.
The CHB370 provides a 70 A amperage rating, 240 V voltage rating, CHB type, and a 10 kAIC interrupt rating. It accommodates #14-8 AWG conductors, is a three-pole device, and measures 3.8 in L by 3.3 in H by 2.3 in W. It is UL 489 listed for CH Loadcenters.
CHB370 is well suited for CH Loadcenter panels in commercial and light-industrial environments, including data-center service panels. Its three-pole configuration supports balanced three-phase protection, while the 70 A rating matches typical feeder and branch circuit protection needs in mid-size installations.
CHB370 carries UL 489 certification, ensuring compliance with safety standards for circuit protection. Eaton backs the device with a limited lifetime warranty, offering long-term protection and support across maintenance cycles and panel upgrades.
The CHB370’s long-term durability reduces replacement and downtime costs, while its straightforward installation minimizes commissioning time. UL 489 compliance and the warranty provide added risk mitigation, and the 70 A rating supports efficient panel protection without oversizing feeders, leading to cost savings over the equipment life.