General Electrics TKMA3Y1200 - 1200 A, 3-Pole Circuit Breaker | AmpState

The General Electrics TKMA3Y1200 is a 1200A, 3-pole molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for demanding electrical environments, it combines compact design with precise, reliable protection that you can count on.

• Compact molded-case design optimizes panel space while keeping protection front and center, making it ideal for crowded electrical rooms and retrofit installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection by coordinating long-term overload sensing with instantaneous short-circuit interruption, reducing nuisance trips and providing predictable behavior under fault conditions.
• OEM-compatible fit designed to pair with matching General Electrics OEM load centers and panelboards for a seamless replacement or upgrade with minimal modification.
• High-current reliability with a 1200A rating suitable for feeders and high-demand branch circuits in commercial and light industrial applications, helping protect wiring, transformers, and connected equipment.
• Rugged, straightforward installation—engineered for durable performance in busy electrical rooms and straightforward mounting in standard panel layouts.

Ideal use cases include main feeder protection in mid-size panelboards, backfed connections in multi-tenant facilities, and reliable protection for critical loads in light industrial settings. When you need a robust 3-pole breaker with a high current rating, the TKMA3Y1200 is a precise, purpose-built solution.

Technical snapshot — this is a 1200 A, 3-pole thermal-magnetic molded case circuit breaker (MCCB) from General Electrics, part number TKMA3Y1200. It provides focused overcurrent and short-circuit protection for residential, commercial, and light industrial distribution systems, and is designed to integrate with compatible OEM panelboards and loadcenters for a clean, dependable installation.

For installers and facilities teams, compatibility and durability matter. The TKMA3Y1200 is built to align with corresponding OEM solutions, simplifying procurement, replacement, and ongoing maintenance while delivering consistent protection that helps keep electrical systems running smoothly.