Overview
The Leviton LB120-AFT is a 20 A, 1-pole, 120 VAC combination arc-fault circuit interrupter with thermal-magnetic trip technology. It is rated 10 kA and is designed exclusively for Leviton Load Centers using Leviton's all plug-on connection system.
Key Features
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Arc-fault protection: Combination AFCI protection responds to series and parallel arcing conditions while conventional thermal-magnetic elements protect against overloads and short circuits.
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Reset lockout and diagnostics: Patented reset lockout prevents reset if arc-fault protection is compromised, and line-side powered LEDs identify the cause of a trip.
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All plug-on installation: The breaker connects through the Leviton load-center architecture without a pigtail, allowing the panel to be wired during rough-in before breakers are installed.
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Environmental range: Thermal-magnetic construction is specified for operation from -40°F to 158°F (-40°C to 70°C).
Specifications
- Manufacturer part number: LB120-AFT
- Current rating: 20 A
- Poles / phase: 1 pole / single phase
- Voltage rating: 120 VAC
- Short-circuit current rating: 10 kA; series rated up to 22 kA with a compatible Leviton main breaker
- Protection: Combination AFCI; thermal-magnetic trip
- Connection and compatibility: All plug-on; for Leviton Load Centers only
- Conductor range: 14-8 AWG
- Dimensions / weight: 3.9 in H × 1.0 in W × 3.1 in D; 0.42 lb
- Standards: CSA C22.2 No. 5-02, EMC compatible, FCC compliant, RoHS compliant, UL 489, and UL 1699
Common Applications
- 120 V residential branch circuits requiring combination AFCI protection.
- Bedrooms, living areas, hallways, and other dwelling-unit circuits where arc-fault protection is specified.
- New Leviton Load Center installations using the all plug-on wiring architecture.
- Replacement of an exact LB120-AFT in a compatible Leviton panel.
