The LB120-DFT Leviton 1P 20A 120V Push In Dual Function Breaker offers reliable protection for your electrical circuits. With a 10kA interrupting capacity, this breaker combines efficiency and safety, ensuring superior performance in both overload and short circuit conditions. Ideal for residential and commercial applications, enhance your system’s reliability today.
| Brand | Leviton |
|---|---|
| Type | Dual-Function (AFCI + GFCI) |
| Amperage | 20 A |
| Poles | 1-Pole |
| Voltage | 120V |
| Interrupting Rating | 10 kA |
| Mounting | Plug-In |
| Frame / Series | LB120 |
| Catalogue # | LB120-DFT |
The Leviton LB120-DFT is a 1-pole, 20A, 120V plug-in dual function (AFCI + GFCI) breaker from Leviton's LB120 series, designed to fit Leviton loadcentres and panelboards that accept the LB-series plug-in breaker format. It provides combined arc-fault and ground-fault protection in a single device, meeting CEC requirements where dual-function protection is specified.
Compatibility is specific to Leviton's own panel lineup — it is not a cross-brand replacement for Square D, Siemens, or Eaton panels. Send us your panel model and we'll confirm fitment before you order.
The LB120-DFT combines AFCI (Arc Fault Circuit Interrupter) and GFCI (Ground Fault Circuit Interrupter) protection in a single breaker. AFCI protection guards against dangerous arcing faults that can cause electrical fires, while GFCI protection guards against shock hazards from ground faults. The Canadian Electrical Code (CEC) increasingly requires both types of protection in bedrooms, kitchens, bathrooms, and other areas — a dual function breaker satisfies both requirements with one device.
Yes — as long as your panel accepts the Leviton LB-series plug-in format, the LB120-DFT installs in the same space as a standard single-pole breaker. Keep in mind it requires a connection to the panel's neutral bar (in addition to the hot leg) to power its electronics, so a neutral pigtail must be landed. If you're unsure whether your panel is compatible, contact our team with your panel model and we'll confirm.
Leviton breakers and loadcentres are less commonly stocked than mainstream brands like Square D or Siemens, making the LB120-DFT a specialty item that can be difficult to source through general electrical suppliers. Northern Breaker Group specializes in exactly these harder-to-find breakers — reach out via our quote form or visit one of our Calgary, Edmonton, or Vancouver counters to check current availability.
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