EI-16x28 12VA Metal transformer
Product Core Overview
1.Structural characteristics
Core design: E-type and I-type silicon steel sheets are stacked alternately to form a closed magnetic circuit. The thickness of the lamination is 28mm, which effectively reduces eddy current loss.
Metal packaging: All-metal shell (usually galvanized steel plate) provides electromagnetic shielding and mechanical protection, with protection level up to IP54
Winding process: primary uses 0.12mm enameled wire (220V side), secondary uses 0.3mm wire diameter (12V/24V output), interlayer insulation uses polyester film
2.Electrical parameters
-Nominal power
The apparent power output of the module is 12 volt-amperes (VA), which indicates its stable power supply capability.
-Input Characteristics
Voltage adaptability: supports 198V~242V AC input (compatible with ±10% fluctuation range);
Frequency compatibility: Adapts to 50Hz or 60Hz power grid.
-No-load energy consumption
When no load is connected, the input current typically does not exceed 15 mA, reflecting the low standby power consumption design.
- Insulation safety
After testing at 500V DC voltage, the measured insulation resistance between windings is ≥100 megohms (MΩ), meeting electrical isolation safety standards.
- Thermal stability
When operating at an ambient temperature of 40°C for a long time, the component temperature rise is controlled to ≤50 Kelvin (K) (corresponding to a maximum temperature ≤90°C), ensuring continuous operational reliability.
3.Performance advantages
The metal shell has both heat dissipation and anti-interference functions, suitable for scenes with complex electromagnetic environments
Vibration noise ≤45dB, 30% better than similar products with plastic housing
Typical application scenarios
1.Industrial Automation Systems
Provide 24V isolated power supply for PLC control cabinet to prevent ground loop interference
Limit switches and sensor power supply modules for machine tools
2.Test and measurement equipment
Auxiliary power supply for oscilloscopes and energy meter calibration devices
Input isolation module for laboratory regulated power supply
3.Special equipment supporting
Power conversion for explosion-proof electrical equipment that complies with Ex dⅡCT6 standards
Vibration-resistant power supply components in ships and rail transportation equipment