Square D HOM220CAFI AFCI Miniature Circuit Breaker
- 20A
- 2 Pole
- Plug-On
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Square D HOM220CAFI - 20A AFCI Miniature Circuit Breaker
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Description
Providing combination arc-fault mitigation for 240V applications or multi-wire branch circuits, this 20A two-pole breaker ensures comprehensive residential safety. It installs into traditional Square D Homeline load centers and utilizes a standard pigtail wire for the neutral connection. Rated for 10kA interrupting capacity, it complies with modern NEC standards for living areas requiring dual-pole AFCI coverage. The unit includes visual trip indicators for simplified maintenance.Specifications
| Brand | Square D |
|---|---|
| Part Number | HOM220CAFI |
| Series | HOM |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Screw/Clamp Terminal |
| For Use With | Square D Homeline Load Centers |
| Wire Gauge | 14-8 AWG (Al/Cu), 14-10 AWG (Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | AFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 5, HACR, UL 1699, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
7 answersCan I install the HOM220CAFI in a Square D QO load center?
No. This breaker is exclusively designed for Square D Homeline load centers. QO panels require QO series breakers, which utilize a different mounting mechanism.
What applications typically require a 2-pole combination arc fault breaker?
A 2-pole CAFI breaker is commonly used for 240V circuits or 120/240V multi-wire branch circuits (shared neutral applications) that require arc fault protection to meet NEC requirements.
Does this breaker feature a plug-on neutral or a pigtail neutral connection?
The HOM220CAFI features a standard pigtail neutral wire. It must be manually connected to the neutral bus bar in your load center, unlike Plug-on Neutral (PoN) breakers which connect directly to the neutral bus.
What does "Combination Arc Fault" (CAFI) mean on this breaker?
Combination Arc Fault breakers provide protection against both parallel arcs (line-to-neutral or line-to-ground) and series arcs (loose connections or damaged wires in series with the load).
Can I terminate two wires under the lugs of the HOM220CAFI?
Yes, the clamp terminals are rated to accept two copper wires ranging from 14 to 10 AWG. If you are terminating a single wire, the terminals accept 14 to 8 AWG copper or aluminum conductors.
How do I test the arc fault functionality after installation?
Once installed and energized, press the test button on the front of the breaker. The breaker should trip immediately, indicating the arc fault detection circuitry is functioning correctly.
What is the difference between the HOM220CAFI and HOM220CAFIC catalog numbers?
Both catalog numbers represent the exact same 20A 2-pole CAFI breaker. The "C" suffix simply indicates that the breaker is packaged in a retail clamshell rather than standard bulk packaging.
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