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Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 100A
- Circuit Breaker Frame Type:
- Complete breaker
- Circuit Breaker Type:
- FDB
- Frame Size:
- F-frame
- Frequency Rating:
- 50/60 Hz
- Interrupt Rating:
- 18 kAIC at 240 Vac, 14 kAIC at 480 Vac
- Notes:
- Product sold in both US and Canada. US products have stainless steel terminals. Canada products have stainless steel terminals and VISA windows.
- Number Of Poles:
- Three-pole
- Series:
- Series C
- Terminal Material:
- Stainless steel
- Terminals:
- Load side
- Trip Type:
- Fixed thermal, fixed magnetic
- Voltage Rating:
- 600 Vac, 250 Vdc
- Department:
- Electrical
- Product Group:
- Electrical Components
- Product Subgroup:
- Circuit Breakers
- Product Type:
- Molded case circuit breaker
- Product Length:
- 3.38 IN
- Product Details:
- Molded case circuit breaker
- Product Height:
- 6 IN
- Product Weight:
- 4.5 LB
- Product Width:
- 4.13 IN
B-LINE FDB3100S – Frequently Asked Questions
1) What is the interrupting rating of the Eaton FDB3100S breaker at 240V and 480V?
The FDB3100S is rated 18 kAIC at 240 Vac and 14 kAIC at 480 Vac. If your available fault current at the panel exceeds those numbers, this FDB frame is not the right breaker for that location; you need a higher AIC F-frame such as an FD or HFD class device. Check the short circuit study or the utility fault current letter before committing.
2) Is the FDB3100S a complete breaker or just a trip unit?
It ships as a complete breaker, not a frame-only or trip-unit-only item. FDB3100S is an F-frame, 100A, three-pole molded case breaker with the thermal-magnetic trip already built in, so there is no separate rating plug or trip unit to order with it.
3) Is the trip setting on the FDB3100S adjustable?
No. The FDB3100S uses fixed thermal and fixed magnetic trip elements, so neither the overload pickup nor the instantaneous setting can be dialed in the field. It protects at its 100A rating as built. If your coordination study calls for an adjustable instantaneous, you need an electronic-trip or adjustable-magnetic F-frame instead.
4) What are the dimensions and weight of the FDB3100S so I can check panel space?
The breaker measures 6 x 4.13 x 3.38 inches and weighs 4.5 lb. That is the standard Eaton F-frame envelope for a three-pole device, so it drops into an F-frame branch space in a panelboard or switchboard prepared for that frame. Confirm the mounting pan and interior are F-frame before ordering.
5) What terminals come on the FDB3100S, and does it land aluminum conductors?
Load side terminals are supplied, and they are stainless steel. Line side lugs are not part of the breaker as listed, so on a plug-in or feed-through application confirm how the line connection is made in your panel. For conductor material and torque values, go by the marking on the breaker and its lugs.
6) Is the FDB3100S the same part in Canada as in the US?
The FDB3100S is sold in both the US and Canada. US product has stainless steel terminals; Canadian product has stainless steel terminals plus VISA windows. Mechanically and electrically it is the same 100A three-pole F-frame breaker either way, but if you are matching an existing Canadian installation, expect the VISA window feature on the units there.
7) What exact part number do I order for a 100A three-pole Eaton Series C F-frame breaker?
The part is FDB3100S, an Eaton Series C molded case breaker. Read the number this way: FDB is the breaker type, 3 is the pole count, and 100 is the amp rating. One model, one configuration, so there are no suffixes or options to pick when ordering.
8) Can I use the FDB3100S on a DC circuit?
It is rated to 250 Vdc, so DC application within that limit is covered by the breaker's rating. Above 250 Vdc it is out of rating. On AC the same device covers up to 600 Vac at 50/60 Hz.
How fast can I get the B-LINE FDB3100S delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE FDB3100S come with a warranty?
Absolutely. The B-LINE FDB3100S is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE FDB3100S?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
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