Built for commercial and industrial applications, the Eaton CHB3100 is a 100A, three-pole miniature circuit breaker. It delivers reliable thermal-magnetic protection against overloads and short circuits. This bolt-on breaker installs securely into Eaton Type PB and PH panelboards, plus compatible multi-metering modules. It accepts 4-1/0 AWG wire via box lug terminals. Rated for 10 kAIC at 240VAC, the unit features Visi-Trip functionality to quickly identify tripped circuits.
Type PB Panelboards, Type PH Panelboards, Meter Panels, Multi-Metering Modules
Wire Gauge
4-1/0 AWG
Max Wire
1/0 AWG
Min Wire
4 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
Common Trip
Product FAQs
6 answers
Which panelboards are compatible with the CHB3100 circuit breaker?
This bolt-on breaker is designed for use in Eaton and Cutler-Hammer Type PB and Type PH panelboards, as well as compatible meter panels and multi-metering modules.
What wire gauge is accepted by the box lugs on this 100A breaker?
The terminal lugs accept conductors ranging from 4 AWG to 1/0 AWG. Ensure your wire sizing meets local electrical codes for a 100-amp circuit.
How does the CHB3100 connect to the panelboard bus?
It utilizes a bolt-on mounting connection. This provides a secure mechanical and electrical connection to the bus bars in PB and PH series panels, which is typical for industrial applications.
What type of protection does the LI trip function provide?
The fixed thermal-magnetic trip unit provides Long-Time (L) protection against sustained overloads and Instantaneous (I) protection against short circuits.
Is the Eaton CHB3100 the same as the Cutler-Hammer CHB3100?
Yes. Eaton acquired the Cutler-Hammer brand, so this breaker serves as the direct, manufacturer-approved replacement for older Cutler-Hammer CHB3100 units.
Can this breaker be used in systems requiring a higher interrupting rating than 10kAIC?
No. The CHB3100 has a maximum interrupting capacity of 10kA at 240V AC. If your system fault current exceeds this, a breaker with a higher AIC rating is required to ensure safe operation.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 4 reviews.