The FA22045AC Square D 2-Pole 45A 240V AC PH I Line breaker offers reliable protection for your electrical systems. Designed for optimal performance, this circuit breaker is ideal for residential and commercial use. Its durable construction ensures long-lasting operation, making it a perfect choice for your power distribution needs.
| 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 # | SQDFA22045AC |
The Square D FA22045AC is an FA-frame moulded-case circuit breaker (MCCB) rated 2-Pole, 45A, 240V AC, 10kA AIC with a plug-in mounting configuration. FA-frame MCCBs are designed for use in Square D panelboards and switchboards that accept FA-frame plug-in breakers — they are not intended for residential QO or Homeline loadcentres. Typical applications include commercial and light-industrial panelboards used for branch-circuit and feeder protection.
Panel fit depends on your specific switchboard or panelboard model. Send us your panel model and we'll confirm compatibility.
The FA22045AC is an FA-frame plug-in MCCB suited for Square D panelboards and switchboards engineered to accept FA-frame breakers. It is not a residential breaker and will not fit QO or Homeline loadcentres. Contact our team with your panelboard model number and we'll confirm the fit.
Sourcing FA-frame Square D breakers — including obsolete or discontinued variants — is one of our specialties. Whether you need a new, surplus, or reconditioned unit, our Calgary, Edmonton, and Vancouver teams can locate and quote the FA22045AC for you. Reach out for a quote.
The 10kA AIC (Ampere Interrupting Capacity) rating means the FA22045AC can safely interrupt fault currents up to 10,000 amperes at 240V AC. Before installing, confirm that the available fault current at your panel does not exceed this rating — if your system's short-circuit current is higher, a breaker with a greater AIC rating will be required to meet CEC safety standards.
