FA22045BC SQUARE D 2P 45A 240V BC PH I LINE is a high-quality circuit breaker designed for efficient and reliable performance. Featuring a two-pole configuration, it supports a maximum current of 45 amps at 240 volts. Ideal for residential and commercial applications, it offers robust protection for your electrical systems. Durable and easy to install.
| Brand | Square D |
|---|---|
| Type | Molded-Case (MCCB) |
| Amperage | 45 A |
| Poles | 2-Pole |
| Voltage | 240V |
| Interrupting Rating | 10 kA |
| Mounting | Plug-In |
| Frame / Series | FA |
| Catalogue # | SQDFA22045BC |
The Square D FA22045BC is a 2-pole, 45A, 240V, 10kA plug-in MCCB from the Square D FA frame (I-Line / Phase-I Line) series. This breaker is designed for use in Square D I-Line panelboards and switchboards — it is a commercial/industrial molded-case breaker and is not interchangeable with residential QO or Homeline loadcentres. It is suitable for branch and feeder applications in commercial and light-industrial distribution equipment rated for FA-frame plug-in devices.
Panel compatibility depends on your specific switchboard or panelboard model and bus configuration. Send us your panel model and we'll confirm fitment before ordering.
No. The FA22045BC is a commercial/industrial I-Line (Phase-I) plug-in MCCB designed for Square D I-Line panelboards and switchboards. QO and Homeline are residential plug-in formats with different bus and clip configurations. These are not interchangeable. If you're unsure which breaker your panel requires, contact our team with your panel model number and we'll point you to the right product.
The Square D FA frame series has been largely superseded by newer MCCB lines, making FA-frame breakers increasingly hard to find through standard supply channels. Northern Breaker Group specializes in obsolete and hard-to-find breakers — we maintain stock and can source units that are no longer carried by general distributors. Contact our Calgary, Edmonton, or Vancouver counters for availability and a quote.
The 'BC' suffix on Square D FA-frame breakers indicates the breaker is configured for I-Line (Phase-I Line) plug-in mounting with specific terminal or lug options. When sourcing a replacement, the full catalogue number — including the 'BC' suffix — must be matched to ensure correct bus engagement and terminal compatibility. Substituting a unit without the correct suffix may result in an improper fit or connection. Always verify the full part number before ordering a replacement.
