The HFD3100 – EATON 3P100A 600V Molded Case Breaker is designed for reliable performance in demanding electrical applications. This robust three-pole breaker offers up to 100 amps of protection at 600 volts, ensuring optimal safety and efficiency. Ideal for commercial and industrial use, it provides enhanced overload and short-circuit protection.
| Brand | Eaton |
|---|---|
| Type | Molded-Case (MCCB) |
| Amperage | 100 A |
| Poles | 3-Pole |
| Voltage | 600V |
| Interrupting Rating | 25 kA |
| Mounting | Bolt-On |
| Frame / Series | HFD |
| Catalogue # | HFD3100 |
The Eaton HFD3100 is a 3-pole, 100A, 600V molded case circuit breaker (MCCB) in the HFD frame, rated for 25kA interrupting capacity with bolt-on mounting. Designed for commercial and industrial applications, it mounts in compatible Eaton/Cutler-Hammer panelboards and switchboards that accept HFD-frame bolt-on breakers — not intended for residential loadcentres. Send us your panelboard or switchboard model and we'll confirm fit.
The HFD3100 is a bolt-on MCCB designed to mount in Eaton/Cutler-Hammer commercial and industrial panelboards and switchboards that accept HFD-frame breakers. It is not a residential plug-in breaker and will not fit BR or CH loadcentres. Panel compatibility varies by model — contact us with your panelboard details and we'll confirm the correct fit.
Yes. The HFD3100's 3-pole, 600V, 100A rating with 25kA interrupting capacity makes it well suited for feeder circuit protection and motor branch-circuit protection in commercial and industrial 600V systems, in accordance with applicable CEC requirements. Always verify the full-load current, required interrupting rating, and any motor-circuit sizing rules with your qualified electrician or engineer.
The HFD frame is an established Eaton MCCB series, though specific configurations can sometimes be difficult to source through standard supply channels. Northern Breaker Group specializes in obsolete and hard-to-find breakers across Canada, with counter locations in Calgary, Edmonton, and Vancouver. Contact us for current availability and to request a quote.
Looking for pricing, stock or delivery?
Reviews are for product feedback and are not monitored by our sales team. For a price, availability or lead time on this part, send a quote request — we reply from our Calgary, Edmonton and Vancouver counters.
No reviews yet for this product. If you have used it, your feedback helps other trades people choose the right part.

Be the first to review this product