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
More
Enclosed Step-Up/Step-Down AC to AC Transformers
Improve the efficiency of your equipment—wire these transformers to step your input voltage up or down by as much as 20%. Choose an input/output voltage combination that comes closest to matching your application, then choose the power output (in VA) of the equipment you want to operate. You probably won’t find the exact value you need; choose the next highest rating.
Note: Transfomers are labeled with a prewired power output and pre-wired primary and secondary voltages. Single phase transformers are labeled as 120/240V AC primary voltage and 12/24V AC secondary voltage.Three phase transformers are labeled as 120/240V AC primary voltage and 16/32V AC secondary voltage. All possible input voltage and output voltage wiring combinations are listed.
Prewired | ||||||||
|---|---|---|---|---|---|---|---|---|
| Input/Output Voltage— Power Output | Power Output Label, VA | Primary Voltage Label | Secondary Voltage Label | Ht. | Wd. | Dp. | Each | |
Single Phase—Wire Leads Input and Output | ||||||||
Step Up/Step Down Voltage | ||||||||
| 100V AC/120V AC—250VA 110V AC/120V AC—500VA 125V AC/113V AC—520VA 132V AC/120V AC—540VA 189V AC/208V AC—430VA 208V AC/230V AC—480VA 220V AC/242V AC—500VA 230V AC/208V AC—470VA 245V AC/222V AC—500VA 252V AC/240V AC—1,020VA | 50 | 120V AC/240V AC | 12V AC/24V AC | 6.4" | 3.1" | 3.1" | 00000000 | 0000000 |
| 100V AC/120V AC—500VA 110V AC/120V AC—1,010VA 125V AC/113V AC—1,040VA 132V AC/120V AC—1,080VA 189V AC/208V AC—870VA 208V AC/230V AC—960VA 220V AC/242V AC—1,010VA 230V AC/208V AC—950VA 245V AC/222V AC—1,000VA 252V AC/240V AC—2,040VA | 100 | 120V AC/240V AC | 12V AC/24V AC | 7.2" | 3.9" | 3.7" | 00000000 | 000000 |
| 100V AC/120V AC—750VA 110V AC/120V AC—1,510VA 125V AC/113V AC—1,560VA 132V AC/120V AC—1,620VA 189V AC/208V AC—1,300VA 208V AC/230V AC—1,430VA 220V AC/242V AC—1,510VA 230V AC/208V AC—1,420VA 245V AC/222V AC—1,500VA 252V AC/240V AC—3,000VA | 150 | 120V AC/240V AC | 12V AC/24V AC | 7.2" | 3.9" | 3.7" | 00000000 | 000000 |
| 100V AC/120V AC—1,250VA 110V AC/120V AC—2,500VA 125V AC/113V AC—2,600VA 132V AC/120V AC—2,750VA 189V AC/208V AC—2,160VA 208V AC/230V AC—2,390VA 220V AC/242V AC—2,520VA 230V AC/208V AC—2,370VA 245V AC/222V AC—2,500VA 252V AC/240V AC—5,100VA | 250 | 120V AC/240V AC | 12V AC/24V AC | 8.7" | 4.1" | 3.9" | 00000000 | 000000 |
| 100V AC/120V AC—2,500VA 110V AC/120V AC—5,000VA 125V AC/113V AC—5,200VA 132V AC/120V AC—5,400VA 189V AC/208V AC—4,330VA 208V AC/230V AC—4,790VA 220V AC/242V AC—5,040VA 230V AC/208V AC—4,470VA 245V AC/222V AC—5,000VA 252V AC/240V AC—10,200VA | 500 | 120V AC/240V AC | 12V AC/24V AC | 9.1" | 4.4" | 4.2" | 00000000 | 000000 |
| 100V AC/120V AC—3,750VA 110V AC/120V AC—7,560VA 125V AC/113V AC—7,800VA 132V AC/120V AC—8,150VA 189V AC/208V AC—6,500VA 208V AC/230V AC—7,190VA 220V AC/242V AC—7,560VA 230V AC/208V AC—7,100VA 245V AC/222V AC—7,500VA 252V AC/240V AC—15,300VA | 750 | 120V AC/240V AC | 12V AC/24V AC | 9.7" | 4.8" | 4 1/2" | 00000000 | 000000 |
| 100V AC/120V AC—5,000VA 110V AC/120V AC—10,000VA 125V AC/113V AC—10,400VA 132V AC/120V AC—10,800VA 189V AC/208V AC—8,660VA 208V AC/230V AC—9,580VA 220V AC/242V AC—10,000VA 230V AC/208V AC—9,500VA 245V AC/222V AC—10,000VA 252V AC/240V AC—20,400VA | 1,000 | 120V AC/240V AC | 12V AC/24V AC | 10 1/2" | 5 1/2" | 5.1" | 00000000 | 000000 |
International AC to AC Transformers
These transformers continuously operate at 80% of the rated power output. They convert voltage to run American appliances in Europe or European appliances in the United States. These transformers are CE Marked, which means they meet European Union safety standards.
Input | Output | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power Output, VA | Plug Type | Plug Style | Socket Type | Socket Style | No. of Outputs | Frequency, Hz | Ht. | Wd. | Dp. | Plug Adapter Type (Style) | Each | |
Single Phase—Step Up/Step Down Voltage, 110V AC/220V AC Input and Output | ||||||||||||
Socket Output for Germany, Spain and United States | ||||||||||||
| 100 | Two Prong | CEE 7/7 (Europe) | Two Slot Three Slot | CEE 7/3 (Germany, Spain) NEMA 5-15 (United States) | 1 1 | 50/60 | 3" | 3" | 5" | NEMA 1-15 (United States), NEMA 5-15 (United States) | 000000000 | 000000 |
| 200 | Two Prong | CEE 7/7 (Europe) | Two Slot Three Slot | CEE 7/3 (Germany, Spain) NEMA 5-15 (United States) | 1 1 | 50/60 | 3 1/4" | 3 1/2" | 5 3/4" | NEMA 1-15 (United States), NEMA 5-15 (United States) | 000000000 | 00000 |
| 300 | Two Prong | CEE 7/7 (Europe) | Two Slot Three Slot | CEE 7/3 (Germany, Spain) NEMA 5-15 (United States) | 1 2 | 50/60 | 3 1/2" | 3 3/4" | 6" | NEMA 1-15 (United States), NEMA 5-15 (United States) | 00000000 | 000000 |
| 500 | Two Prong | CEE 7/7 (Europe) | Two Slot Three Slot | CEE 7/3 (Germany, Spain) NEMA 5-15 (United States) | 1 2 | 50/60 | 3 1/2" | 4" | 6 1/2" | NEMA 1-15 (United States), NEMA 5-15 (United States) | 00000000 | 000000 |
| 800 | Two Prong | CEE 7/7 (Europe) | Two Slot Three Slot | CEE 7/3 (Germany, Spain) NEMA 5-15 (United States) | 1 2 | 50/60 | 4 1/2" | 5 1/4" | 7 1/2" | NEMA 1-15 (United States), NEMA 5-15 (United States) | 000000000 | 000000 |
| 1,000 | Two Prong | CEE 7/7 (Europe) | Two Slot Three Slot | CEE 7/3 (Germany, Spain) NEMA 5-15 (United States) | 1 2 | 50/60 | 4 3/4" | 6 1/4" | 9" | NEMA 1-15 (United States), NEMA 5-15 (United States) | 00000000 | 000000 |
| 1,500 | Two Prong | CEE 7/7 (Europe) | Two Slot Three Slot | CEE 7/3 (Germany, Spain) NEMA 5-15 (United States) | 2 2 | 50/60 | 5 3/4" | 6 3/4" | 9 3/4" | NEMA 1-15 (United States), NEMA 5-15 (United States) | 000000000 | 000000 |
| 2,000 | Two Prong | CEE 7/7 (Europe) | Two Slot Three Slot | CEE 7/3 (Germany, Spain) NEMA 5-15 (United States) | 2 2 | 50/60 | 6" | 7 1/2" | 9 3/4" | NEMA 1-15 (United States), NEMA 5-15 (United States) | 00000000 | 000000 |
Socket Output for Europe and United States | ||||||||||||
| 3,000 | Two Prong | CEE 7/7 (Europe) | Three Slot Three Slot | Universal (Europe) NEMA 5-15 (United States) | 1 1 | 50/60 | 5 3/4" | 7" | 9 3/4" | NEMA 1-15 (United States), NEMA 5-15 (United States), BS 1363; UK1-13 (United Kingdom) | 000000000 | 000000 |