Leviton LM125-T Main Circuit Breaker 125A, Thermal Magnetic

Secure, dependable main power protection for residential and commercial load centers. The Leviton LM125-T main circuit breaker is a thermal-magnetic 2-pole breaker designed to protect your electrical system from overloads and short circuits while minimizing downtime for critical equipment. Rated at 125A for 120/240V service with a 22kA interrupt rating, this breaker delivers robust fault-clearing capacity for demanding applications such as security, surveillance, monitoring, and IT racks. Built specifically for Leviton load centers, the LM125-T snaps in easily for fast installation and matches indoor load center finishes for a professional look. The thermal-magnetic trip technology provides combined overload and instantaneous short-circuit protection, helping to safeguard sensitive devices and reduce nuisance trips. With CSA and UL listings and a 10-year limited warranty, the LM125-T gives contractors and facility managers peace of mind for long-term reliability. Ideal for new installs, upgrades, and systems supporting security or networking equipment—add the Leviton LM125-T to your project to protect critical power infrastructure.

• Provides dependable whole‑system protection so your home or business stays powered and equipment stays safe
• Thermal-magnetic trip design combines fast short‑circuit response with reliable overload protection
• 125A, 2‑pole rating for primary main service use in 120/240V systems, supporting demanding loads
• 22kA interrupting rating reduces risk during fault conditions for safer service and maintenance
• Engineered for seamless fit with Leviton load centers for quick installation and a clean, coordinated appearance
• Backed by a 10‑year limited warranty to reduce long‑term risk and support uptime for security and surveillance systems