McMaster-Carr logo
    Filter by
    System of Measurement
    Transformer Voltage Function
    Frequency
    Electrical Phase
    Plug Adapter Style
    Plug Adapter NEMA Type
    Industrial Info Compare
    Transformer Type
    Labeled Primary Voltage
    Output Connection International Standard
    Input Connection Type
    Input Plug Connection
    Number of Outputs
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    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)
    48 Products

    International Transformers

    Image of Product. Output for Europe and United States. Front orientation. Europe. International Transformers.
    Image of Product. Output for Germany, Spain, and United States. Front orientation. Germany. International Transformers.

    Output for Europe and United States

    Output for Germany, Spain, and

    United States

    Image of Specification. 2-Blade Straight Plug. Front orientation. 2 Input Blades. International Transformers, Straight Blade.
    Image of Specification. CEE 7/3 Socket. Front orientation. CEE 7/3. International Transformers.

    2-Blade

    Straight

    Plug

    CEE 7/3

    Socket

    Image of Specification. Universal Socket. Front orientation. Universal. International Transformers.
    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. International Transformers.

    Universal

    Socket

    NEMA

    5-15

    Socket

    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 Connection
    Plug Style
    Socket
    Connection
    Socket Style
    No. of
    Outputs
    Freq., Hz
    Ht.
    Wd.
    Dp.
    Plug Adapter Type (Style)
    Each
    Single Phase—Step-Up/Step-Down Voltage, 110V AC/220V AC Input and Output Voltage
    1002-Blade StraightCEE 7/7 (Europe)2-Slot Straight
    3-Slot Straight    		CEE 7/3 (Type F) (Germany, Spain)
    NEMA 5-15 (United States)    		1
    1    		50/603"3"5"NEMA 1-15 (United States), NEMA 5-15 (United States)000000000000000
    2002-Blade StraightCEE 7/7 (Europe)2-Slot Straight
    3-Slot Straight    		CEE 7/3 (Type F) (Germany, Spain)
    NEMA 5-15 (United States)    		1
    1    		50/603 1/4"3 1/2"5 3/4"NEMA 1-15 (United States), NEMA 5-15 (United States)00000000000000
    3002-Blade StraightCEE 7/7 (Europe)2-Slot Straight
    3-Slot Straight    		CEE 7/3 (Type F) (Germany, Spain)
    NEMA 5-15 (United States)    		1
    2    		50/603 1/2"3 3/4"6"NEMA 1-15 (United States), NEMA 5-15 (United States)00000000000000
    5002-Blade StraightCEE 7/7 (Europe)2-Slot Straight
    3-Slot Straight    		CEE 7/3 (Type F) (Germany, Spain)
    NEMA 5-15 (United States)    		1
    2    		50/603 1/2"4"6 1/2"NEMA 1-15 (United States), NEMA 5-15 (United States)00000000000000
    8002-Blade StraightCEE 7/7 (Europe)2-Slot Straight
    3-Slot Straight    		CEE 7/3 (Type F) (Germany, Spain)
    NEMA 5-15 (United States)    		1
    2    		50/604 1/2"5 1/4"7 1/2"NEMA 1-15 (United States), NEMA 5-15 (United States)000000000000000
    1,0002-Blade StraightCEE 7/7 (Europe)2-Slot Straight
    3-Slot Straight    		CEE 7/3 (Type F) (Germany, Spain)
    NEMA 5-15 (United States)    		1
    2    		50/604 3/4"6 1/4"9"NEMA 1-15 (United States), NEMA 5-15 (United States)00000000000000
    1,5002-Blade StraightCEE 7/7 (Europe)2-Slot Straight
    3-Slot Straight    		CEE 7/3 (Type F) (Germany, Spain)
    NEMA 5-15 (United States)    		2
    2    		50/605 3/4"6 3/4"9 3/4"NEMA 1-15 (United States), NEMA 5-15 (United States)000000000000000
    2,0002-Blade StraightCEE 7/7 (Europe)2-Slot Straight
    3-Slot Straight    		CEE 7/3 (Type F) (Germany, Spain)
    NEMA 5-15 (United States)    		2
    2    		50/606"7 1/2"9 3/4"NEMA 1-15 (United States), NEMA 5-15 (United States)00000000000000
    3,0002-Blade StraightCEE 7/7 (Europe)3-Slot Straight
    3-Slot Straight    		Universal (Europe)
    NEMA 5-15 (United States)    		1
    1    		50/605 3/4"7"9 3/4"NEMA 1-15 (United States), NEMA 5-15 (United States), BS 1363 (Type G) (United Kingdom)000000000000000
     

    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
     

    DC to AC Inverters for Sensitive Electronic Loads

    These inverters produce AC output that most closely resembles clean, stable AC-generated power. Also known as converters, they prevent damage from overloads, short circuits, and overheating.
    Single Phase—Plug-In Input and Plug-In Output
    Image of Product. With Vehicle Input Plug. Front orientation. Inverters. DC to AC Inverters for Sensitive Electronic Loads, Single Phase—Plug-In Input and Plug-In Output, Vehicle.
    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. DC to AC Inverters for Sensitive Electronic Loads.

    With Vehicle Input Plug

    NEMA

    5-15

    Socket

    Voltage
    Output
    No. of
    Outlets
    Input,
    V DC
    Output,
    V AC
    Power,
    W
    Current,
    amp
    Socket
    Connection
    NEMA
    Type
    Input Plug
    Connection
    Ht.
    Wd.
    Dp.
    Each
    Step-Up Voltage
    1121201251.13-Slot Straight5-15
    		Vehicle2.2"4.9"7.9"000000000000000
     
    Single Phase—Wire Leads Input and Plug-In Output
    Image of Product. With Wire Leads. Front orientation. Inverters. DC to AC Inverters for Sensitive Electronic Loads, Single Phase—Wire Leads Input and Plug-In Output.
    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. DC to AC Inverters for Sensitive Electronic Loads.

    With Wire Leads

    NEMA

    5-15

    Socket

    Voltage
    Output
    No. of
    Outlets
    Input,
    V DC
    Output,
    V AC
    Power,
    W
    Current,
    amp
    Socket
    Connection
    NEMA
    Type
    Ht.
    Wd.
    Dp.
    Each
    Step-Up Voltage
    1241201251.13-Slot Straight5-15
    		2.2"4.9"7.9"000000000000000
     
    Single Phase—Stud-Terminal Input and Plug-In Output
    Image of Product. With Stud Terminals. Front orientation. Inverters. DC to AC Inverters for Sensitive Electronic Loads, Single Phase—Stud-Terminal Input and Plug-In Output.
    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. DC to AC Inverters for Sensitive Electronic Loads.

    With Stud Terminals

    NEMA

    5-15

    Socket

    Voltage
    Output
    No. of
    Outlets
    Input,
    V DC
    Output,
    V AC
    Power,
    W
    Current,
    amp
    Socket
    Connection
    NEMA
    Type
    Stud
    Size
    Ht.
    Wd.
    Dp.
    Each
    Step-Up Voltage
    2121206005.13-Slot Straight5-15
    		5/16"3.6"7.7"12.1"000000000000000
    2121201,1009.53-Slot Straight5-15
    		5/16"3.6"7.7"15"0000000000000000
     

    DC to AC Inverters

    Use DC voltage to power devices that run on AC voltage. Also known as converters, they prevent damage from overloads.
    Single Phase—Screw-Terminal Input and Plug-In Output
    Image of Product. With 3 Outlets. Front orientation. Inverters. DC to AC Inverters, Single Phase—Screw-Terminal Input and Plug-In Output, 3 Outlets.
    Image of Product. With 4 Outlets. Front orientation. Inverters. DC to AC Inverters, Single Phase—Screw-Terminal Input and Plug-In Output, 4 Outlets.
    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. DC to AC Inverters.

    With 3 Outlets

    With 4 Outlets

    NEMA

    5-15

    Socket

    Voltage
    Output
    No. of
    Outlets
    Input,
    V DC
    Output,
    V AC
    Power,
    W
    Current,
    amp
    Socket
    Connection
    NEMA
    Type
    Ht.
    Wd.
    Dp.
    Each
    Step-Up Voltage
    3121207005.83-Slot Straight5-15
    		2.8"5"8.2"00000000000000
    4121201,0008.33-Slot Straight5-15
    		4.3"6"13"0000000000000
    4121201,800153-Slot Straight5-15
    		4"6"15"0000000000000
     

    Enclosed Voltage-Stabilizing Transformers

    Protect sensitive equipment from electromagnetic interference and maintain power during three-millisecond power dips. These transformers also isolate output and input voltage (output regulation is ±3% with input voltage fluctuations from +10% to -20%). When wired for constant voltage, transformers filter out voltage spikes and electrical noise.
    Single Phase—Screw-Terminal Input and Output Connection
    Image of Product. Front orientation. Transformers. Enclosed Voltage-Stabilizing Transformers.
    Voltage,
    V AC
    Input
    Output
    Power Output,
    VA
    Ht.
    Wd.
    Dp.
    Features
    Certification
    Each
    Step-Up/Step-Down/Constant Voltage
    120/208/240/480120/208/2401404.4"6"8 1/2"Isolated CoilsUL Listed, CSA Certified
    		00000000000000
    120/208/240/480120/208/2402504.4"6"9.7"Isolated CoilsUL Listed, CSA Certified
    		0000000000000
    120/208/240/480120/208/2405006 1/2"6.3"12.3"Isolated CoilsUL Listed, CSA Certified
    		0000000000000
    120/208/240/480120/208/2407506 1/2"6.3"13.3"Isolated CoilsUL Listed, CSA Certified
    		000000000000000
    120/208/240/480120/208/2401,0006 1/2"6.3"14.2"Isolated CoilsUL Listed, CSA Certified
    		000000000000000
    120/208/240/480120/208/2401,5009.9"9.4"17.6"Isolated CoilsUL Listed, CSA Certified
    		000000000000000
    120/208/240/480120/208/2403,0009.9"9.4"19.9"Isolated CoilsUL Listed, CSA Certified
    		000000000000000
     

    Enclosed Isolating Transformers

    These transformers have isolated primary and secondary coils to protect your sensitive equipment from input voltage spikes.
    Single Phase—Wire Leads Input and Output Connection
    Image of Product. Front orientation. Transformers. Enclosed Isolating Transformers, Single Phase—Wire Leads Input and Output Connection.
    Constant Voltage—When wired as constant-voltage transformers, they filter out voltage spikes and electrical noise.
    Sealed Cores—Sealed coils and cores prevent corrosion and insulation damage.
    Voltage,
    V AC
    Input
    Output
    Power Output,
    VA
    Ht.
    Wd.
    Dp.
    Features
    Environment
    Enclosure
    Rating
    Certification
    Each
    Step-Up/Step-Down/Constant Voltage
    120/240120/2401,00010 1/2"6.1"5.2"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		00000000000000
    120/240120/2402,00013"5 1/2"5.1"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		0000000000000
    120/240120/2403,00011 1/2"10.3"7.1"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		0000000000000
    120/240120/2405,00014.4"10.3"7.1"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		000000000000000
     

    Bench-Top Variable-Voltage Transformers

    Mount these portable transformers to any flat surface. Turn the dial to adjust the voltage you need within a given range. Also known as variacs, they are often used in laboratories to vary power, heat, speed, or force.
    Single Phase—Plug Input and Socket Output Connection
    Image of Product. Front orientation. Transformers. Bench-Top Variable-Voltage Transformers.
    Image of Specification. NEMA 5-15 Plug. Front orientation. NEMA 5-15. Bench-Top Variable-Voltage Transformers.
    Image of Specification. NEMA 5-20 Plug. Front orientation. NEMA 5-20. Bench-Top Variable-Voltage Transformers.
    Image of Specification. NEMA 6-15 Plug. Front orientation. NEMA 6-15. Bench-Top Variable-Voltage Transformers.

    NEMA

    5-15

    Plug

    NEMA

    5-20

    Plug

    NEMA

    6-15

    Plug

    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. Bench-Top Variable-Voltage Transformers.
    Image of Specification. NEMA 5-20 Socket. Front orientation. NEMA 5-20. Bench-Top Variable-Voltage Transformers.
    Image of Specification. NEMA 6-15 Socket. Front orientation. NEMA 6-15. Bench-Top Variable-Voltage Transformers.

    NEMA

    5-15

    Socket

    NEMA

    5-20

    Socket

    NEMA

    6-15

    Socket

    Constant Voltage—When wired for constant voltage, transformers filter out voltage spikes and electrical noise.
    Voltage,
    V AC
    Input
    Output
    Input
    Output
    Power Output,
    VA
    Plug Connection
    Connection
    NEMA Type
    Socket
    Connection
    Connection
    NEMA Type
    Max. Current,
    amp
    Ht.
    Wd.
    Dp.
    Features
    Certification
    Each
    Step-Up/Step-Down/Constant Voltage
    1200 to 1323303-Blade Straight5-15
    		3-Slot Straight5-15
    		2.55.3"6.1"4.1"Fuse, Power-Indicating LightCSA Certified
    		00000000000000
    1200 to 1407003-Blade Straight5-15
    		3-Slot Straight5-15
    		55.3"6.1"4.1"Fuse, Power-Indicating Light—0000000000000
    1200 to 1401,4003-Blade Straight5-15
    		3-Slot Straight5-15
    		107"4.6"5 1/2"Fuse, Power-Indicating LightCSA Certified
    		0000000000000
    1200 to 1402,1003-Blade Straight5-15
    		3-Slot Straight5-15
    		159.4"6.2"6"Fuse, Power-Indicating LightCSA Certified
    		000000000000000
    1200 to 1403,0803-Blade Straight5-20
    		3-Slot Straight5-20
    		2210.9"8"6.3"Fuse, Power-Indicating Light—000000000000000
    2400 to 2809803-Blade Straight6-15
    		3-Slot Straight6-15
    		3.57"4.6"5 1/2"Fuse, Power-Indicating Light—0000000000000
    2400 to 2802,6603-Blade Straight6-15
    		3-Slot Straight6-15
    		9.59.4"6.2"6"Fuse, Power-Indicating Light—000000000000000
     

    DC to AC Inverters for Motor Loads

    Provide AC power to devices that temporarily draw high output, such as motors. These inverters are designed to withstand starting surges up to twice the power output rating. Also known as converters, they prevent damage from overloads.
    Single Phase—Plug-In Input and Plug-In Output
    Image of Product. With Vehicle Input Plug. Front orientation. Inverters. DC to AC Inverters for Motor Loads, Single Phase—Plug-In Input and Plug-In Output.
    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. DC to AC Inverters for Motor Loads.

    With Vehicle Input Plug

    NEMA

    5-15

    Socket

    Voltage
    Output
    No. of
    Outlets
    Input,
    V DC
    Output,
    V AC
    Power,
    W
    Current,
    amp
    Socket
    Connection
    NEMA
    Type
    Input Plug
    Connection
    Ht.
    Wd.
    Dp.
    Each
    Step-Up Voltage
    411 to 1512037513-Slot Straight5-15
    		Vehicle2.4"4.2"6"00000000000000
     
    Single Phase—Screw-Terminal Input and Plug-In Output
    Image of Product. With Screw Terminals. Front orientation. Inverters. DC to AC Inverters for Motor Loads, Single Phase—Screw-Terminal Input and Plug-In Output.
    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. DC to AC Inverters for Motor Loads.

    With Screw Terminals

    NEMA

    5-15

    Socket

    Voltage
    Output
    No. of
    Outlets
    Input,
    V DC
    Output,
    V AC
    Power,
    W
    Current,
    amp
    Socket
    Connection
    NEMA
    Type
    Ht.
    Wd.
    Dp.
    Each
    Step-Up Voltage
    2121201,25010.43-Slot Straight5-15
    		7"8.8"9"00000000000000
     

    Panel-Mount Variable-Voltage Transformers

    Permanently install these transformers in panels. Turn the dial to adjust the voltage you need within a given range. Also known as variacs, they are often used in laboratories to vary power, heat, speed, or force. When wired for constant voltage, transformers filter out voltage spikes and electrical noise.
    Single Phase—Screw-Terminal Input and Output Connection
    Image of Product. Front orientation. Transformers. Panel-Mount Variable-Voltage Transformers.
    Voltage,
    V AC
    Input
    Output
    Power Output,
    VA
    Max. Current,
    amp
    Ht.
    Wd.
    Dp.
    Certification
    Each
    Step-Up/Step-Down/Constant Voltage
    2400 to 2809803.55.6"4.4"4.2"CSA Certified
    		00000000000000
     
    back to top