Built for heavy-duty motor control applications, the GD3100 delivers consistent 100-amp circuit protection. This three-pole breaker utilizes fixed thermal-magnetic trip elements to safeguard critical commercial and industrial infrastructure. The device mounts into Eaton Series C panelboards, motor control centers, and standalone enclosures. Its G-Frame footprint allows for straightforward integration into existing power systems. Featuring a 22kAIC rating at 480VAC, this MCCB is HACR rated.
What is the difference between the Eaton GD3100 and GHB3100?
Both are 100-amp, 3-pole, Series C G-frame breakers, but they feature different mounting styles. The GD3100 is a unit-mount (feed-thru) breaker with cable-in and cable-out lugs, whereas the GHB3100 is a bolt-on breaker designed for direct bus connection in Eaton panelboards.
What types of equipment are compatible with the GD3100?
As a unit-mount breaker, it is designed for use in Eaton Series C panelboards, motor control centers, switchboards, and standalone enclosures that support feed-thru configurations.
Can I field-install internal accessories in the GD3100?
No. Eaton Series C G-frame circuit breakers are factory-sealed. Field installation of internal accessories, such as shunt trips or auxiliary switches, will void the UL listing. These components must be factory-installed.
What wire sizes do the standard lugs on the GD3100 accept?
The included lugs are designed to accommodate wire gauges ranging from 14 AWG up to 1/0 AWG.
Is the GD3100 suitable for reverse feed applications?
Yes, this thermal-magnetic molded case circuit breaker is suitable for reverse feed installations.
Can the GD3100 be used in DC electrical systems?
Yes. While commonly used in 240VAC and 480VAC systems, this breaker is also rated for 125/250VDC applications with a 10kA interrupting capacity.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.