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GE THJS3603GA3 Circuit Breaker
GE THJS3603GA3
I. Overview
The GE THJS3603GA3 is a 300A ground-type circuit breaker manufactured by General Electric (GE). It is specifically designed for industrial and commercial power systems to provide overload and short-circuit protection. Its model designation, “THJS3603 300 Amp Ground LIG”, indicates that it features ground protection functionality, making it suitable for power distribution scenarios where high reliability is required.
II. Parameters
- Rated current: 300A (3 poles)
- Rated voltage: 600V AC (three-phase power supply)
- Number of poles: 3 poles (3P)
- Frequency: 50/60Hz (optional)
- Insulation class: Complies with industrial standards, suitable for high-voltage environments
- Response time: Rapid disconnection during short circuits (specific values not specified, but similar products typically operate in the millisecond range)
III. Product Features
- Ground protection function: Achieves fault protection through ground loop detection, preventing equipment damage and the risk of electric shock to personnel.
- High reliability: Utilizes high-quality materials and advanced manufacturing processes to ensure long-term stable operation.
- Modular design: Compatible with other GE circuit breaker modules (such as AMC6EB, AMC6EL), facilitating system integration.
- Compact structure: Saves space, suitable for dense wiring environments.
- Auxiliary contacts: Support remote signal output, enabling automated control.
IV. Structure and Composition
Core components:
Core components:
- Contact system: 3-pole main contacts, responsible for normal switching and rapid disconnection during short circuits.
- Arc extinguishing device: Adopts ceramic or air-blast arc extinguishing technology to efficiently quench arcs.
- Ground loop detection: Built-in sensors for real-time monitoring of ground faults.
Connection methods:
- Plug-in terminals: Support quick installation and disassembly, compatible with various cable specifications.
- Fuse protection: Built-in 1×3-pole fuses provide additional overcurrent protection.
Enclosure protection: Complies with NEMA standard 12 (dust and water resistance), making it suitable for harsh environments.
V. Application Fields
- Industrial power systems: Used for main power distribution and branch circuit protection in places such as factories and data centers.
- Commercial buildings: Power distribution networks in large buildings like office buildings and shopping malls.
- Renewable energy grid integration: Cooperates with distributed energy systems such as solar and wind energy to ensure grid stability.
- Special scenarios: Power distribution for high-power equipment such as electric vehicle charging piles and energy storage systems.
VI. Installation and Maintenance
Installation requirements:
Installation requirements:
- Must be operated by professional electricians to ensure compliance with electrical safety standards (such as IEC/GB standards).
- The installation location should be away from flammable substances, and space for heat dissipation should be reserved.
Maintenance steps:
- Regular inspection: Test the contact resistance of contacts, the status of arc extinguishing devices, and the function of ground loops.
- Cleaning and lubrication: Remove dust from the enclosure and, if necessary, lubricate moving parts.
- Replacement of spare parts: such as fuses and contacts should be replaced according to the manufacturer’s recommended schedule.
Precautions:
- Operation in a live state is prohibited; the upper-level power supply must be disconnected and residual voltage released.
- Parameters (such as rated current and voltage settings) need to be recalibrated after maintenance.
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Low – price clearance sale, first come, first served.
One – year warranty, dedicated after – sales service.
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