Description
GE 9T58K2812 Type IP Control Power Transformer
1. Product Description
The GE 9T58K2812 is a 1 kVA single-phase dry-type control power transformer engineered for industrial and commercial applications requiring reliable voltage conversion. Part of GE’s 9T58K series, the 9T58K2812 features a fully encapsulated epoxy coil and welded core, providing superior protection against moisture, dust, and vibration. With selectable primary (240/480 VAC) and secondary (120/240 VAC) voltages, it supports flexible configurations for machine tools, control panels, HVAC systems, and lighting circuits. The transformer’s rugged design includes finger-safe terminals, pressure plate connections, and an 180°C temperature class (IS-12), ensuring safety and durability in harsh environments. Certified to CE, CSA, and UL standards (File No. E2739), the 9T58K2812 delivers stable performance with a 4:1 turns ratio, making it ideal for critical industrial operations.
The GE 9T58K2812 is a 1 kVA single-phase dry-type control power transformer engineered for industrial and commercial applications requiring reliable voltage conversion. Part of GE’s 9T58K series, the 9T58K2812 features a fully encapsulated epoxy coil and welded core, providing superior protection against moisture, dust, and vibration. With selectable primary (240/480 VAC) and secondary (120/240 VAC) voltages, it supports flexible configurations for machine tools, control panels, HVAC systems, and lighting circuits. The transformer’s rugged design includes finger-safe terminals, pressure plate connections, and an 180°C temperature class (IS-12), ensuring safety and durability in harsh environments. Certified to CE, CSA, and UL standards (File No. E2739), the 9T58K2812 delivers stable performance with a 4:1 turns ratio, making it ideal for critical industrial operations.
2. Technical Parameters
| Parameter | Specification |
|---|---|
| Power Rating | 1 kVA |
| Phase | Single-phase |
| Frequency | 60 Hz (50 Hz compatible) |
| Primary Voltage | 240/480 VAC (selectable) |
| Secondary Voltage | 120/240 VAC (selectable) |
| Turns Ratio | 4:1 |
| Enclosure Type | Open (encapsulated coil) |
| Insulation Class | IS-12 (180°C temperature rating) |
| Terminals | Pressure plate (finger-safe design) |
| Dimensions (W x H x D) | 5.31 x 4.56 x 12 inches (approx.) |
| Weight | 30 lbs (approx.) |
| Certifications | CE, CSA, UL (File No. E2739) |
| Standards | IEEE C57.12.00, IEC 61558-2-4 |
GE 9T58K2812
3. Advantages and Features
- Encapsulated Design: Epoxy-sealed coil resists moisture and contaminants, ensuring reliability in humid or dusty environments.
- Quiet Operation: Welded core reduces noise levels compared to traditional laminated cores.
- Voltage Flexibility: Dual primary/secondary voltage options (240/480:120/240 VAC) for versatile applications.
- Safety Features: Finger-safe terminals and rugged plastic terminal board prevent accidental contact.
- Secure Connections: Pressure plate terminals with #8 brass screws ensure corrosion-resistant wiring.
- Case Study: A manufacturing plant reduced downtime by 20% using the 9T58K2812 in a machine tool control system, leveraging its moisture-resistant design and quick-terminal replacements.
4. Application Areas and Use Cases
- Industries: Manufacturing, energy, HVAC, telecommunications, and industrial automation.
- Scenarios: Control panel power supply, machine tool voltage regulation, lighting isolation, and signal system backup.
- Use Case: A food processing facility deployed the 9T58K2812 to convert 480 VAC to 120 VAC for conveyor belt controls, achieving stable operation in a high-moisture environment with zero voltage fluctuations over 24 months.
5. Competitive Comparison
Compared to similar industrial transformers, the 9T58K2812 offers:
Compared to similar industrial transformers, the 9T58K2812 offers:
- Superior Protection: Full epoxy encapsulation (vs. partial coating in alternatives).
- Voltage Flexibility: Dual primary/secondary voltage options (vs. fixed-ratio models).
- Safety Compliance: Finger-safe terminals and UL/CSA certifications (vs. basic safety standards).
- Cost Efficiency: Welded core design reduces vibration-related failures and maintenance needs.
GE 9T58K2812
6. Selection Recommendations
- Voltage Compatibility: Verify primary/secondary voltage requirements (e.g., 480 VAC input for industrial grids).
- Environment: Opt for the 9T58K2812 in wet/dusty settings (encapsulated coil); choose open-frame models for clean environments.
- Space Constraints: Compact dimensions (5.31 x 4.56 inches) suit tight control panels; confirm wall/rack mounting requirements.
- Load Type: Suitable for resistive (lighting) and inductive (motors) loads up to 1 kVA.
7. Precautions
- Installation: Ensure proper grounding and torque terminals to 8–10 lb-in (avoid over-tightening).
- Temperature: Operate within -10°C to 40°C ambient; derate capacity in high-temperature environments.
- Fusing: Use GE-recommended fuse clips (optional) for overcurrent protection (2x–3x full-load current).
- Maintenance: Inspect terminals annually for corrosion; clean dust with a dry cloth (avoid solvents).
