Description
GE TKMA31000
Technical Specifications:
- Brand: General Electric (GE)
- Model: TKMA31000
- Product Type: Trip Unit / Breaker Accessory
- Application: Industrial Circuit Protection
Functional Features:
- Precision Tripping: Accurately detects overcurrent, short circuit, and ground fault conditions.
- Adjustable Settings: Allows field-adjustable trip thresholds and time delays for optimal system coordination.
- Alarm Outputs: Provides auxiliary contacts to signal pre-trip alarms or breaker status to the control system.
Application Scenarios:
Deployed in motor control centers, power distribution panels, and industrial machinery to protect cables, transformers, and motors.
Performance Parameters:
- Accuracy: Tight tolerance on trip points to prevent nuisance tripping while ensuring equipment protection.
- Response Time: Fast mechanical response to clear faults before they cause thermal damage.
Material Composition:
Precision current transformers, solid-state electronics, and high-reliability electromechanical relays.
Structural Characteristics:
Compact plug-in or front-mount design with accessible adjustment dials, test buttons, and clear rating labels.
Working Principle:
Continuously monitors the current flowing through the circuit breaker. When the current exceeds the programmed threshold for the specified duration, it sends a signal to unlatch the breaker mechanism.
Installation Requirements:
Ensure the trip unit is fully seated and locked into the circuit breaker frame. Verify that the current rating matches the protected equipment.
Usage Precautions:
Always use the manufacturer-approved test kit to verify trip functionality. Never bypass or modify the internal trip mechanisms.




