Description
GE TH3363J
Technical Specifications
- Manufacturer: General Electric.
- Part Number: TH3363J.
- Type: Dry-Type Control Transformer.
- Primary Voltage: Standard industrial AC voltage.
- Secondary Voltage: 120V AC or 24V AC.
Functional Features
- Galvanic Isolation: Provides complete electrical isolation between primary power and sensitive control circuits.
- Voltage Regulation: Maintains stable secondary voltage despite fluctuating primary power or load changes.
- Thermal Protection: Built-in thermal fuses and Class B or F insulation for safety.
- Low Noise: Engineered for quiet operation in control panels.
Application Scenarios
Used to power PLC systems, relay logic, pilot lights, solenoid valves, and low-voltage control circuits in manufacturing and automation.
Performance Parameters
- VA Rating: Sized appropriately for continuous control panel loads.
- Impedance: Low impedance to handle high inrush currents from contactors.
- Dielectric Strength: Withstands high impulse voltages without breakdown.
Material Composition
Constructed with high-grade silicon steel laminations for low core loss, copper windings, and a ruggedized steel or phenolic enclosure.
Structural Characteristics
Compact rectangular profile with clearly marked primary and secondary screw terminals. Features mounting brackets for secure panel installation.
Working Principle
Operates on electromagnetic induction. Alternating current in the primary winding creates a magnetic flux in the steel core, which induces a proportional, stepped-down voltage in the secondary winding.
Installation Requirements
Mount vertically to ensure proper air circulation and cooling. Fuse both primary and secondary sides according to NEC/IEC standards. Ground the core and enclosure securely.
Usage Precautions
Do not exceed the VA rating. Ensure secondary circuits are protected against short circuits. Inspect terminal tightness annually to prevent hot spots.
