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About AC to AC Voltage Transformers
For single-phase equipment, use this formula to find power output: VA = Volts × Amps
For three-phase equipment, use this formula to find power output: VA = Volts × Amps × 1.73
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Circuit Board AC to AC Transformers
Convert AC voltages without taking up too much space on your circuit board. These transformers are smaller than those with electrical wiring. Solder pin terminals mount directly through circuit board holes.
For technical drawings and 3-D models, click on a part number.
Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Input | Output | Power Output, VA | Ht. | Wd. | Dp. | Pin Lg. | Specifications Met | Each | |
Single Phase—Solder Pin Terminals Input and Output | |||||||||
Step Down Voltage | |||||||||
| 115V AC/230V AC | 8V AC/16V AC | 1.1 | 1.3" | 1.4" | 1.1" | 0.23" | UL Recognized Component, C-UL Recognized Component | 0000000 | 000000 |
| 115V AC/230V AC | 8V AC/16V AC | 2.4 | 1.2" | 1.4" | 1.1" | 0.23" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 115V AC/230V AC | 8V AC/16V AC | 6 | 1.3" | 1.6" | 1.3" | 0.23" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 115V AC/230V AC | 8V AC/16V AC | 12 | 1.5" | 1.9" | 1.6" | 0.23" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 115V AC/230V AC | 8V AC/16V AC | 20 | 1.4" | 2.3" | 1.9" | 0.23" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 115V AC/230V AC | 8V AC/16V AC | 36 | 1.6" | 2.6" | 2.2" | 0.23" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
Low-Current AC to AC Transformers
NEMA 1-15 Plug Input
NEMA 5-15 Plug Input
NEMA 1-15 Plug
NEMA 5-15 Plug
Power low-voltage devices such as alarms and sensors.
Voltage | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Input | Output | Power Output, VA | Input Plug Type (NEMA Style) | Ht. | Wd. | Dp. | Features | Specifications Met | Each | |
Single Phase—Plug Input and Screw Terminals Output | ||||||||||
Step Down Voltage | ||||||||||
| 120V AC | 16V AC | 20 | Two Prong (1-15) | 3.1" | 2.1" | 1.9" | __ | UL Listed | 0000000 | 000000 |
| 120V AC | 16V AC | 40 | Three Prong (5-15) | 3.6" | 2.6" | 2.1" | Auto Reset, Power-Indicating Light | UL Listed | 0000000 | 00000 |
Low-Current Panel-Mount AC to AC Transformers
Hardwire this transformer into your panel. Use it to power low-voltage devices such as alarms and sensors. It cannot be sold to California due to local energy efficiency requirements.
| Input Voltage | Output Voltage (Power Output, VA) | Ht. | Wd. | Dp. | Cannot Be Sold To | Each | |
Single Phase—Wire Leads Input and Screw Terminals Output | |||||||
|---|---|---|---|---|---|---|---|
Step Down Voltage | |||||||
| 120V AC | 8V AC (20), 16V AC (30), 24V AC (30) | 2.2" | 2.3" | 2.9" | CA | 0000000 | 000000 |