Leviton LB115-AFT 15A 1-Pole Plug-On AFCI Branch Circuit Breaker User Manual

1. Introduction

This manual provides essential information for the safe installation, operation, and maintenance of the Leviton LB115-AFT 15 Amp, 1-Pole Plug-on AFCI Branch Circuit Breaker. Please read all instructions carefully before proceeding with installation or use. Retain this manual for future reference.

2. Safety Information

WARNING: Risk of Electric Shock or Electrocution.

• Installation and servicing of this circuit breaker must be performed by a qualified electrician in accordance with all national and local electrical codes.
• Always turn off power at the main service panel before working on electrical circuits or equipment.
• Use appropriate personal protective equipment (PPE) when working with electrical systems.
• Do not use this device if it appears damaged.
• This AFCI circuit breaker is designed to detect and trip on arc faults. It does not protect against ground faults (unless it is a dual-function AFCI/GFCI breaker) or overcurrents beyond its rating.

3. Product Overview

The Leviton LB115-AFT is a 15 Amp, 1-Pole Plug-on Arc Fault Circuit Interrupter (AFCI) Branch Circuit Breaker. It is designed for use in Leviton Load Centers and provides protection against arc faults, which can cause electrical fires. The thermal magnetic design offers reliable overcurrent protection.

Key Features:

• Easy Installation: Revolutionary design allows wiring at rough-in without circuit breakers present.
• Enhanced Safety: Features patented reset lockout technology, preventing reset if ground or arc fault protection is compromised.
• Intuitive Fault Indication: LEDs communicate trip condition and type of fault, remaining illuminated even when tripped.
• Comfortable Operation: Rocker-style switches require less activation force than traditional circuit breakers.

This image shows the front of the Leviton LB115-AFT 15A 1-Pole AFCI Circuit Breaker. It features an 'OFF/TEST' rocker switch, an 'ON' indicator, a '15' amp rating, and 'AF' (Arc Fault) indicator. The UL listing and electrical specifications are visible at the top.

4. Installation and Setup

The Leviton Load Center is designed for simplified installation. Branch phase and neutral connections are made directly on the panel, allowing for neat wiring before breakers are installed.

Installation Steps:

1. Prepare the Load Center: Ensure all power to the load center is OFF at the main service disconnect.
2. Wire the Panel: Connect branch circuit wires (hot and neutral) directly to the appropriate terminals within the load center. The spacious layout provides ample room for wiring.
3. Install Breakers: Once wiring is complete, simply snap the Leviton LB115-AFT AFCI circuit breakers into the designated slots in the load center. No additional wiring is required for the breaker itself.
4. Test Breaker: After installation and restoration of power, perform a test of the AFCI breaker as described in the Operating Instructions section.

This image illustrates a hand inserting a Leviton circuit breaker into a load center panel. The plug-on design simplifies the installation process, eliminating the need for additional wiring connections directly to the breaker.

This image displays two Leviton circuit breakers, highlighting the color indicators within the handle. These indicators provide an immediate visual status of the breaker's operational state.

Installation Video:

This video provides a comprehensive overview of the Leviton Load Center, demonstrating the ease of installation for both the panel and the plug-on circuit breakers. It highlights the design features that simplify wiring and future upgrades.

5. Operating Instructions

Turning On/Off:

• To turn the circuit ON, push the rocker switch to the 'ON' position.
• To turn the circuit OFF, push the rocker switch to the 'OFF' position.

Testing the AFCI Breaker:

Regular testing of the AFCI breaker is crucial to ensure proper operation and continued protection against arc faults. Test monthly.

1. Ensure the circuit breaker is in the 'ON' position.
2. Press the 'TEST' button located on the breaker. The breaker should immediately trip to the 'OFF' position.
3. If the breaker does not trip, it may be faulty and should be replaced by a qualified electrician.
4. To restore power, push the rocker switch fully to the 'OFF' position, then back to the 'ON' position.

This image shows a Leviton circuit breaker with its line-side powered LEDs. These LEDs illuminate to indicate the specific type of fault (e.g., arc fault) that caused the breaker to trip, aiding in quick diagnosis.

6. Maintenance

Leviton AFCI circuit breakers are designed for long-term reliability and generally require minimal maintenance. However, periodic checks are recommended:

• Monthly Testing: Perform the AFCI test as described in Section 5.
• Visual Inspection: Periodically inspect the circuit breaker for any signs of physical damage, discoloration, or loose connections.
• Cleaning: If necessary, gently wipe the exterior of the breaker with a dry, clean cloth. Do not use liquids or abrasive cleaners.

7. Troubleshooting

If your Leviton LB115-AFT AFCI circuit breaker trips, follow these troubleshooting steps:

1. Identify Tripped Breaker: Locate the tripped breaker in your load center. The rocker switch will be in the 'OFF' position, and the fault indicator LED will be illuminated.
2. Note Fault Type: Observe the fault indicator LED to determine the type of fault (e.g., arc fault).
3. Disconnect Appliances: Unplug or turn off all appliances and lights on the affected circuit.
4. Reset Breaker: Push the rocker switch fully to the 'OFF' position, then firmly to the 'ON' position.
5. Restore Power Gradually: Plug in or turn on appliances one by one to identify the device causing the trip. If the breaker trips again, the last device connected or turned on is likely the cause.
6. Persistent Tripping: If the breaker trips without any load, or if it continues to trip after isolating devices, there may be a wiring issue or a faulty breaker. Contact a qualified electrician for further diagnosis and repair.

8. Specifications

9. Warranty and Support

For warranty information and technical support, please refer to the official Leviton website or contact Leviton customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.

Leviton Customer Service: www.leviton.com