Safe Isolation
Full electrical isolation between primary and secondary circuits
Up to 96% Efficiency
Low-loss windings for stable, energy-efficient operation
25 VA – 1000 VA
Full CT0 power range to fit any control panel size
Certified Quality
Built to IEC 61558 and tested for industrial duty
Technical Data
| Product | Rated Power (VA) | Input Voltage (V) | Output Voltage | No-load Losses (W) | Load Losses (W) | Efficiency (%) | %VR | W (mm) | D (mm) | H (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Single Phase Industrial Control Transformer 25 VA | 0.025 | 0-230-400 | 0-12-24-36-48-110 | 1.23 | 4.14 | 82.3 | 16.6 | 66 | 76 | 80 | 0.71 |
| Single Phase Industrial Control Transformer 40 VA | 0.025 | 0-230-400 | 0-12-24-36-48-110 | 1.6 | 6.4 | 83.5 | 15.9 | 76.2 | 76 | 80 | 0.91 |
| Single Phase Control Transformer 50 VA | 0.025 | 0-230-400 | 0-12-24-36-48-110 | 1.73 | 9.73 | 81.4 | 19.5 | 76.2 | 83 | 80 | 0.97 |
| Single Phase Control Transformer 63 VA | 0.025 | 0-230-400 | 0-12-24-36-48-110 | 1.8 | 12 | 82.1 | 19 | 76.2 | 83 | 80 | 1.06 |
| Single Phase Control Transformer 100 VA | 0.025 | 0-230-400 | 0-12-24-36-48-110 | 3 | 12.8 | 86.3 | 12.8 | 96 | 83 | 96 | 1.68 |
How to Choose the Right Control Transformer
Select a transformer based on the total VA load of your control circuit.
Calculate Your Load (VA)
Add the total VA of all devices connected to your control circuit, including contactors, relays, PLCs, timers, indicator lamps, and solenoids. Tip: Select a transformer with 20–30% extra capacity to ensure reliable operation and allow for future expansion.
Select Input Voltage
Choose the available supply voltage for your control panel. Star Trans control transformers support the most common industrial input voltages, including 230V and 400V.
Select the Output Voltage
Identify the control voltage required by your equipment. Available output taps include 12V, 24V, 36V, 48V, and 110V, making the transformer suitable for a wide range of industrial applications.
Choose the Right VA Rating
Select a transformer with enough capacity to power your control devices efficiently. A higher VA rating is recommended for applications with multiple contactors, relays, PLCs, or high inrush current.
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