The FH26045AC Square D 2-Pole 45A Circuit Breaker is designed for 600/347V AC applications. It offers reliable overload and short-circuit protection, ensuring safety and efficiency for your electrical systems. Ideal for commercial and industrial setups, this breaker is compatible with Square D I-Line panels, providing durability and high performance you can trust.
| Brand | Square D |
|---|---|
| Type | Molded-Case (MCCB) |
| Amperage | 45 A |
| Poles | 2-Pole |
| Voltage | 600/347V |
| Interrupting Rating | 18 kA |
| Mounting | Plug-In |
| Frame / Series | FH |
| Catalogue # | SQDFH26045AC |
The FH26045AC is a Square D FH-frame I-Line plug-in breaker rated 2-Pole, 45A, 600/347V AC, 18kA IC. It is designed to mount in Square D I-Line panelboards and switchboards that accept the plug-in I-Line mounting system — typically used in commercial and industrial distribution applications, not residential loadcentres.
Not sure if your panelboard takes I-Line plug-in breakers? Send us your panel model number and we'll confirm compatibility.
The FH26045AC uses Square D's I-Line plug-in mounting system, making it compatible with Square D I-Line panelboards and switchboards designed for that bus system. It is a commercial/industrial-grade breaker and is not interchangeable with residential QO or Homeline loadcentres. Send us your panel model and we'll confirm the fit.
Availability can vary as Square D periodically updates its FH-frame lineup. Northern Breaker Group specialises in obsolete and hard-to-find breakers, so whether the FH26045AC is a current or discontinued part, we can source new, surplus, or reconditioned units. Contact our Calgary, Edmonton, or Vancouver counter for a quote.
Yes — the FH26045AC is rated for 600/347V AC, which makes it suitable for 347V single-phase branch circuits commonly found in Canadian commercial lighting systems. At 45A and with an 18kA interrupting capacity, it provides reliable overload and short-circuit protection for those applications. Verify that your I-Line panelboard is rated for the same voltage before installation.
