Leviton LB245-T 45A 2-Pole Plug-On Standard Branch Circuit Breaker Instruction Manual

1. Product Overview

The Leviton LB245-T is a 45 Amp, 2-Pole Plug-on Standard Branch Circuit Breaker designed for use in Leviton Load Centers. This thermal magnetic circuit breaker operates at 120/240 VAC and offers a reliable solution for circuit protection. Its innovative design simplifies installation and provides flexibility for future upgrades.

Figure 1: Front and side view of the Leviton LB245-T 45A 2-Pole Plug-On Standard Branch Circuit Breaker.

Key Features:

• Easy Installation: Revolutionary design allows the entire Load Center to be wired at rough-in without any circuit breakers present, making installs up to 25% faster.
• Intuitive Operation: Color indicators in the handle show operational status at-a-glance.
• Comfortable Design: Rocker-style switches require less activation force than traditional circuit breakers.
• Flexible Upgrades: Modular panel design and 225 Amp rated bussing allow for in-field main breaker customization and future smart upgrades.

2. Setup and Installation

Installation of the Leviton LB245-T circuit breaker is designed for efficiency and ease. It is crucial that all electrical work is performed by a qualified electrician and adheres to all local and national electrical codes.

Installation Steps:

1. Prepare the Load Center: Ensure the main power to the load center is OFF before beginning any work. The Leviton Load Center's design allows for wiring at rough-in without breakers installed, providing ample space.
2. Wire Connections: Branch phase and neutral connections are made directly on the load center panel. Neatly land wires at rough-in, ensuring no breakers are in the way.
3. Plug-On Breaker Installation: Once wiring is complete, simply snap the LB245-T circuit breaker into the designated slot on the load center's bus bar. No additional wiring is required for the breaker itself.
4. Secure Breaker: Ensure the breaker is firmly seated and securely connected to the bus bar.

Figure 2: Front view of the LB245-T breaker, showing the ON/OFF switch and rating.

Visual Installation Guide:

Watch the official Leviton Load Center video for a visual demonstration of the installation process and key features.

3. Operating Instructions

The Leviton LB245-T circuit breaker features a rocker-style switch for easy operation and clear visual indicators for its status.

Turning the Breaker 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.

Status Indicators:

The breaker handle includes color indicators that provide operational status at-a-glance, allowing for quick visual confirmation of the circuit's state.

Figure 3: Leviton circuit breakers showing color indicators in the handle for operational status.

4. Maintenance

Leviton circuit breakers are designed for long-term reliability with minimal user maintenance. However, periodic inspection by a qualified electrician is recommended to ensure continued safe operation.

Recommended Maintenance Practices:

• Visual Inspection: Periodically check the circuit breaker for any signs of physical damage, discoloration, or loose connections.
• Professional Inspection: It is advisable to have a qualified electrician inspect your load center and circuit breakers at regular intervals (e.g., every 3-5 years) to check for wear, proper functioning, and compliance with current electrical codes.
• Cleaning: Ensure the area around the load center is clean and free from dust or debris. Do not use liquids to clean inside the load center.

WARNING: Do not attempt to open or repair the circuit breaker yourself. Refer all servicing to qualified personnel.

5. Troubleshooting

If a circuit breaker trips, it indicates an overload or a fault condition on the circuit. The Leviton LB245-T provides visual cues to assist in identifying the issue.

Identifying a Tripped Breaker:

• When the breaker trips, the rocker switch will move to an intermediate position between 'ON' and 'OFF'.
• The color indicator in the handle will change to signal the tripped status.

Resetting a Tripped Breaker:

1. Identify and Correct the Cause: Before resetting, unplug or turn off any appliances or devices on the affected circuit that may have caused the overload or fault.
2. Fully OFF: Push the breaker handle firmly to the 'OFF' position. You may hear a click.
3. Turn ON: Push the breaker handle firmly to the 'ON' position.

If the breaker immediately trips again, there is still an issue on the circuit. Do not repeatedly reset the breaker. Contact a qualified electrician for diagnosis and repair.

Advanced Fault Identification:

Leviton Load Centers and compatible breakers may feature line-side powered LEDs that provide easy fault type identification, assisting electricians in quickly diagnosing issues such as arc faults or ground faults.

Figure 4: Example of Leviton circuit breakers with line-side powered LEDs indicating fault types.

Smart Upgrades for Enhanced Monitoring:

Optional smart upgrades for Leviton Load Centers can offer features like electrical anomaly notifications, remote breaker control, and real-time energy monitoring, providing homeowners with advanced insights and control over their electrical system.

6. Specifications

7. Warranty and Support

For warranty information and technical support regarding your Leviton LB245-T circuit breaker, please refer to the official Leviton website or contact Leviton customer service directly. Keep your purchase receipt for warranty claims.

For additional resources and product information, visit the Leviton Store on Amazon.