Leviton LB120-DST Circuit Breaker

Product Overview

The Leviton LB120-DST is a single-pole, 20‑amp thermal‑magnetic circuit breaker with combined arc-fault (AF) and ground-fault (GF) protection and a 10 kA interrupting rating.

Designed for residential and commercial electrical panels, the LB120-DST provides integrated AF/GF safety in a standard 1‑pole breaker package from Leviton.

Key Features

• Single-pole (1P) thermal‑magnetic design
• 20 ampere trip rating
• Integrated arc-fault (AF) and ground-fault (GF) protection
• 10 kA interrupting rating
• Genuine Leviton product (Model LB120-DST, UPC 07847718815)

What this breaker does

The LB120-DST combines overcurrent protection with both arc-fault and ground-fault detection in a single-pole thermal‑magnetic breaker. It responds to overcurrent conditions and helps reduce risk from arc faults and ground-faults where those protections are required.

• Thermal‑magnetic trip unit for standard overcurrent protection.
• Combined AF/GF functionality integrated into the breaker housing.

Electrical ratings and load details

Use the LB120-DST where a 1‑pole, 20 A breaker with a 10 kA interrupting rating matches the panel and circuit requirements.

• Pole count: 1 (single‑pole)
• Ampacity: 20 A
• Interrupting rating: 10 kA

Intended applications

The LB120-DST is intended for residential and commercial electrical distribution panels that require combined arc-fault and ground-fault protection in a single-pole breaker. Confirm compatibility with the target panel and local code requirements before installation.

• Suitable for branch-circuit protection where AF/GF protection is needed.
• Commonly used in living spaces and other areas where arc-fault/ground-fault protection is mandated.

Model and product specifics

Identify the breaker by Leviton model LB120-DST and UPC 07847718815 when ordering or matching replacements.

• Brand: Leviton
• Model / Item #: LB120-DST
• UPC: 07847718815
• Unit of measure: Each
• Weight: 5.6 lb

Before You Order

Confirm the model number LB120-DST and that a single-pole 20 A AF/GF breaker with a 10 kA interrupting rating meets your panel and code requirements before ordering.

• Verify physical and electrical compatibility with the specific panel or load center.
• Confirm whether local electrical code requires this combined AF/GF protection for the intended circuit.

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Leviton LB120-DST Circuit Breaker. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.