GE TKMA3Y1200 molded case circuit breaker

Description

Real-World Use & Application Scenarios

In power distribution and industrial electrical safety, the GE TKMA3Y1200 molded case circuit breaker is widely employed to protect electrical systems from overloads, short circuits, and other fault conditions. This module is fundamental in heavy industry, commercial buildings, factories, malls, and energy management systems where reliable circuit interruption ensures equipment safety and operational continuity. Its role is critical in environments where high current loads—up to 1200 amps—must be controlled and swiftly disconnected if abnormalities arise. The GE TKMA3Y1200 is applicable in electrical panels, switchboards, and control cabinets that require robust, industrial-grade protection hardware. It excels at preventing damage to electrical equipment by providing precise, high-speed disconnection capabilities, reducing operational risks and minimizing downtime. Its compact design aides in dense power distribution setups, making it ideal for facilities constrained by limited space yet requiring high-performance electrical protection. This circuit breaker is trusted by engineers to deliver stable operation in harsh industrial environments where vibration, temperature shifts, and electrical noise are prevalent.

Product Introduction & Positioning

The GE TKMA3Y1200 is a molded case circuit breaker from General Electric’s line of industrial electrical protection devices. It is a three-pole, 1200-ampere-rated switch designed primarily as a heavy-duty industrial power switch with circuit interrupting capabilities. Unlike some breakers, the GE TKMA3Y1200 model specifically serves as a non-auto trip unit, primarily functioning as a manual switch or host for add-ons such as shunt trips, undervoltage releases, and auxiliary switches. It fits into control systems and power distribution panels where circuit protection and switching need to be managed without integrated thermal trip units. Compatible with a voltage rating up to 600 volts AC, it positions itself as a key protective module for high power industrial and commercial installations. Its “K-frame” design is part of GE’s widely recognized product family, known for ruggedness and modular flexibility. This model is chosen by system integrators and electrical engineers who require customizable protection schemes and compact yet robust breaker hardware that supports industrial continuity and safety.

Key Technical Features & Functional Benefits

The GE TKMA3Y1200 offers high reliability in circuit interruption with a 1200-amp capacity supporting up to 600 volts AC, enabling it to handle substantial electrical loads in power distribution networks. Its feed-thru design facilitates efficient wiring and system architecture, promoting neat and scalable installations. The breaker’s non-auto trip functionality allows it to be controlled precisely with external accessories, making it versatile for custom protection strategies such as remote switching and emergency shutdowns.

Built within GE’s K-frame standard, this molded case switch is engineered for durability and heavy-duty operation. It withstands industrial temperature ranges and mechanical stresses like vibration, ensuring continuous service in challenging environments. High-quality materials and construction also assure resistance against corrosion and long-term wear.

The compact form factor of the GE TKMA3Y1200 is optimized for use in densely packed electrical panels, saving valuable space without sacrificing functionality. Its modular design simplifies installation and replacement, which increases uptime and reduces maintenance complexity. The breaker’s ability to integrate with multiple auxiliary devices enhances system diagnostic and operational flexibility for better control and safety management.

Detailed Technical Specifications

Related Modules or Compatible Units

TKMA3Y1100 – Similar molded case breaker with a 1000-amp rating, suitable for slightly lower load requirements.
THQB1600 – Thermal magnetic circuit breaker with automatic trip for enhanced overload protection.
V7768-312001 – GE VME single-board computer commonly used in control systems that pair with electrical protection units.
Molded Case Switch TKM Series – Family of switches compatible with modular upgrades and different amp ratings.
GE JWL Breaker Series – Compact circuit breakers used in light industrial control panels.
GE MAG-BREAK – Magnetic circuit breakers offering high-speed interruption capabilities for specific industrial applications.
ABB 3BSE035980R1 – ABB I/O module often integrated in systems alongside GE breakers for mixed-automation environments.

Installation Notes & Maintenance Best Practices

When installing the GE TKMA3Y1200, secure it firmly within industrial control panels or switchboards compatible with K-frame breakers. Confirm that the panel’s voltage and current ratings align precisely with the breaker’s specifications to avoid electrical hazards. Adequate clearance must be maintained around the breaker to allow heat dissipation and access for wiring or future servicing. Proper grounding and compliance with electrical codes during installation are crucial for minimizing noise interference and ensuring system safety.

Maintenance routines for the GE TKMA3Y1200 should include regular visual inspections for signs of wear, corrosion, or heat damage. Confirm the integrity of connection terminals to ensure solid electrical contact. Since it is a non-auto trip breaker, test associated trip accessories like shunt trips or undervoltage releases periodically for full operational readiness. Keeping firmware or related control software up to date is unnecessary for this mechanical device, but any integrated control systems interconnected with the breaker should be routinely checked for firmware health. These practices help maintain reliable operation and extend the service life of the breaker under continuous industrial use.