GE 12IAC66K58A Overcurrent Protection Relay
GE 12IAC66K58A
Product Overview
The GE 12IAC66K58A is an electromechanical overcurrent protection relay designed for industrial power distribution and electrical protection systems. It belongs to GE’s IAC relay family, which is widely associated with time-overcurrent protection applications.
The relay monitors current conditions within an electrical circuit. When the current exceeds a predetermined setting, it operates according to its configured time-current characteristics. Consequently, it helps protect electrical equipment against overloads and fault currents.
With its time-delay operating principle, this device also supports coordination between different protective devices in a power distribution network.
Technical Specifications
| Parameter | Description |
|---|---|
| Manufacturer | General Electric (GE) |
| Model | 12IAC66K58A |
| Product Type | Electromechanical Overcurrent Relay |
| Relay Family | IAC |
| Protection Function | Time Overcurrent Protection |
| Operating Principle | Electromagnetic Induction |
| Application | Electrical Protection Systems |
| Frequency | 60 Hz |
Main Features
- Overcurrent Detection: Monitors electrical current and responds when it exceeds the configured operating threshold.
- Time-Delay Protection: Provides delayed operation to support coordination between protective devices.
- Electromechanical Design: Uses established relay technology for dependable protection functions.
- Industrial Compatibility: Suitable for electrical distribution and industrial power protection installations.
- Protection Coordination: Helps isolate abnormal electrical conditions and limit their impact on connected equipment.
Internal Structure
The relay incorporates several functional elements:
- Electromagnetic operating mechanism for current detection.
- Time-delay mechanism for operating characteristics.
- Current sensing components for monitoring circuit conditions.
- Contact assembly for external trip signal control.
- Mechanical adjustment components for protection settings.
These elements work together to provide coordinated overcurrent protection.
Application Areas
The product can be used in various electrical protection environments, including:
- Industrial power distribution systems.
- Generator protection installations.
- Electrical switchgear and control panels.
- Power plant auxiliary systems.
- Manufacturing facility electrical networks.
- Industrial motor protection circuits.
Installation and Maintenance
The relay should be installed according to the applicable electrical protection design. Before commissioning, technicians should verify wiring connections, current transformer compatibility, protection settings, and contact operation.
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