Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
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| Part Number | CHB390 |
| Series | 240 Volt CHB |
| Amperes | 90 |
| Poles | 3 |
| Voltage | 240 |
| Product Type | circuit-breaker |
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
The Eaton CHB390 circuit breaker is built for rugged industrial electrical service, maintenance, and replacement projects. With a 3-pole design delivering 240V three‑phase protection, this 90A breaker helps safeguard essential equipment in demanding environments while simplifying panel maintenance.
Part of Eaton’s 240 Volt CHB series, the CHB390 provides reliable overcurrent protection for distributed power in commercial and industrial settings. Its three-pole configuration ensures safe isolation of all phases, helping prevent fault propagation and enabling quicker service restoration in the field.
Why this matters: In three-phase systems, precise protection at the distribution level helps contain faults, reduce equipment damage, and shorten outage times. The CHB390 is designed to integrate smoothly into Eaton’s CHB ecosystem, supporting reliable coordination with existing breakers and accessories.
Before purchasing, verify compatibility by matching the part number CHB390 to your equipment catalog and application requirements. If you need help confirming fit or aligning it with your installation, our team is ready to assist—send us a message and we’ll help confirm compatibility by part number and application needs.
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General feedback we often hear from customers purchasing industrial electrical parts.
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
Packaging was secure and the item arrived clean and ready for installation.
Electrical contractor · GTA
We’ve used this type on multiple jobs and it’s been reliable so far.
Panel shop · Canada/US