McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    11 Products

    Enclosed Step-Up/Step-Down-Voltage 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: Transformers 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.
    Single Phase—Wire Leads Input and Output Connection
    Image of Product. Front orientation. Transformers. Enclosed Step-Up/Step-Down-Voltage Transformers.
    Labeled
    Input/Output Voltage—Power
    Output
    Power Output,
    VA
    Primary Voltage,
    V AC
    Secondary Voltage,
    V AC
    Ht.
    Wd.
    Dp.
    Each
    Step-Up/Step-Down Voltage
    100V AC/120V AC—250 VA
    110V AC/120V AC—500 VA
    125V AC/113V AC—520 VA
    132V AC/120V AC—540 VA
    189V AC/208V AC—430 VA
    208V AC/230V AC—480 VA
    220V AC/242V AC—500 VA
    230V AC/208V AC—470 VA
    245V AC/222V AC—500 VA
    252V AC/240V AC—1,020 VA    		50120/24012/246.4"3.1"3.1"000000000000000
    100V AC/120V AC—500 VA
    110V AC/120V AC—1,010 VA
    125V AC/113V AC—1,040 VA
    132V AC/120V AC—1,080 VA
    189V AC/208V AC—870 VA
    208V AC/230V AC—960 VA
    220V AC/242V AC—1,010 VA
    230V AC/208V AC—950 VA
    245V AC/222V AC—1,000 VA
    252V AC/240V AC—2,040 VA    		100120/24012/247.2"3.9"3.7"00000000000000
    100V AC/120V AC—750 VA
    110V AC/120V AC—1,510 VA
    125V AC/113V AC—1,560 VA
    132V AC/120V AC—1,620 VA
    189V AC/208V AC—1,300 VA
    208V AC/230V AC—1,430 VA
    220V AC/242V AC—1,510 VA
    230V AC/208V AC—1,420 VA
    245V AC/222V AC—1,500 VA
    252V AC/240V AC—3,000 VA    		150120/24012/247.2"3.9"3.7"00000000000000
    100V AC/120V AC—1,250 VA
    110V AC/120V AC—2,500 VA
    125V AC/113V AC—2,600 VA
    132V AC/120V AC—2,750 VA
    189V AC/208V AC—2,160 VA
    208V AC/230V AC—2,390 VA
    220V AC/242V AC—2,520 VA
    230V AC/208V AC—2,370 VA
    245V AC/222V AC—2,500 VA
    252V AC/240V AC—5,100 VA    		250120/24012/248.7"4.1"3.9"00000000000000
    100V AC/120V AC—2,500 VA
    110V AC/120V AC—5,000 VA
    125V AC/113V AC—5,200 VA
    132V AC/120V AC—5,400 VA
    189V AC/208V AC—4,330 VA
    208V AC/230V AC—4,790 VA
    220V AC/242V AC—5,040 VA
    230V AC/208V AC—4,470 VA
    245V AC/222V AC—5,000 VA
    252V AC/240V AC—10,200 VA    		500120/24012/249.1"4.4"4.2"00000000000000
    100V AC/120V AC—3,750 VA
    110V AC/120V AC—7,560 VA
    125V AC/113V AC—7,800 VA
    132V AC/120V AC—8,150 VA
    189V AC/208V AC—6,500 VA
    208V AC/230V AC—7,190 VA
    220V AC/242V AC—7,560 VA
    230V AC/208V AC—7,100 VA
    245V AC/222V AC—7,500 VA
    252V AC/240V AC—15,300 VA    		750120/24012/249.7"4.8"4 1/2"00000000000000
    100V AC/120V AC—5,000 VA
    110V AC/120V AC—10,000 VA
    125V AC/113V AC—10,400 VA
    132V AC/120V AC—10,800 VA
    189V AC/208V AC—8,660 VA
    208V AC/230V AC—9,580 VA
    220V AC/242V AC—10,000 VA
    230V AC/208V AC—9,500 VA
    245V AC/222V AC—10,000 VA
    252V AC/240V AC—20,400 VA    		1,000120/24012/2410 1/2"5 1/2"5.1"00000000000000
     
    Single/Three Phase—Wire Leads Input and Output Connection
    Image of Product. Front orientation. Transformers. Enclosed Step-Up/Step-Down-Voltage Transformers.
    Three-phase applications require two transformers.
    Labeled
    Input/Output Voltage—Power
    Output
    Power Output,
    VA
    Primary Voltage,
    V AC
    Secondary Voltage,
    V AC
    Ht.
    Wd.
    Dp.
    Each
    Step-Up/Step-Down Voltage
    195V AC/208V AC—5,630 VA
    208V AC/240V AC—3,170 VA
    225V AC/240V AC—6,500 VA
    240V AC/208V AC—2,810 VA
    245V AC/230V AC—6,630 VA
    256V AC/240V AC—6,930 VA
    265V AC/234V AC—3,590 VA
    272V AC/240V AC—3,680 VA    		250120/24016/328.7"4.1"3.9"000000000000000
    195V AC/208V AC—11,260 VA
    208V AC/240V AC—6,330 VA
    225V AC/240V AC—12,990 VA
    240V AC/208V AC—5,630 VA
    245V AC/230V AC—13,260 VA
    256V AC/240V AC—13,860 VA
    265V AC/234V AC—7,170 VA
    272V AC/240V AC—7,360 VA    		500120/24016/329.1"4.4"4.2"00000000000000
    195V AC/208V AC—16,890 VA
    208V AC/240V AC—9,500 VA
    225V AC/240V AC—19,490 VA
    240V AC/208V AC—8,440 VA
    245V AC/230V AC—19,890 VA
    256V AC/240V AC—20,780 VA
    265V AC/234V AC—10,760 VA
    272V AC/240V AC—11,040 VA    		750120/24016/329.7"4.8"4 1/2"00000000000000
    195V AC/208V AC—22,520 VA
    208V AC/240V AC—12,670 VA
    225V AC/240V AC—25,980 VA
    240V AC/208V AC—11,260 VA
    245V AC/230V AC—26,520 VA
    256V AC/240V AC—27,710 VA
    265V AC/234V AC—14,340 VA
    272V AC/240V AC—14,720 VA    		1,000120/24016/3210 1/2"5 1/2"5.1"00000000000000
     
    back to top