Providing essential circuit protection, the Eaton CHB330 is a 30A, 3-pole miniature breaker engineered for 240VAC applications. It utilizes standard thermal-magnetic technology to detect and interrupt overloads and short circuits. This device installs into Cutler-Hammer Type PB and PH panelboards, as well as compatible meter panels. The bolt-on configuration ensures a rigid connection. With a 10 kAIC rating and a Visi-Trip indicator, this HACR-rated component accepts 14-8 AWG conductors.
Type PB Panelboards, Type PH Panelboards, Meter Panels, Multi-Metering Modules
Wire Gauge
14-8 AWG
Max Wire
8 AWG
Min Wire
14 AWG
Protection and operation
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed Thermal, Fixed Magnetic
Standards and features
Available Options
Padlock Attachment
Standards
CSA C22.2 No. 5, Federal Specification W-P-131a, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, Common Trip
Product FAQs
6 answers
What panelboards are compatible with the Eaton CHB330 circuit breaker?
The CHB330 is a bolt-on breaker specifically designed for older Eaton and Cutler-Hammer Type PB and Type PH panelboards, as well as compatible meter panels and multi-metering modules. It cannot be used in standard residential load centers that require plug-on CH breakers.
Can I use a CHB330 to replace a standard CH330 breaker?
No. While both are 30A, 3-pole breakers in the CH family, the CH330 is a plug-on breaker for standard load centers, whereas the CHB330 features a bolt-on connection for Type PB and PH panelboards. They are not interchangeable.
Is the Eaton CHB330 breaker HACR rated?
Yes, the CHB330 is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific rating.
How do you reset a tripped CHB330 circuit breaker?
When the CHB330 trips, the handle moves to a position between ON and OFF. To reset it, you must first push the handle firmly to the full OFF position, and then switch it back to the ON position.
What type of wire material can be used with the CHB330 breaker?
The box lugs on the CHB330 are rated for both copper (Cu) and aluminum (Al) conductors. Ensure your wire is sized between 14 AWG and 8 AWG to fit the terminals properly.
How does the thermal-magnetic trip mechanism function on the CHB330?
The CHB330 utilizes a fixed thermal-magnetic trip mechanism. The inverse time thermal element prevents nuisance tripping on mild overloads, while the magnetic instantaneous element reacts immediately to clear severe short-circuit faults.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 4 reviews.