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    48 Products
    About Transformers
    industrial info icon

    Compare transformer features and learn about voltages. Then, choose the transformer that's right for your application.

    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
    Output
    Power, 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
    		7425K330000000
    120/208/240/480120/208/2402504.4"6"9.7"Isolated CoilsUL Listed, CSA Certified
    		7425K34000000
    120/208/240/480120/208/2405006 1/2"6.3"12.3"Isolated CoilsUL Listed, CSA Certified
    		7425K35000000
    120/208/240/480120/208/2407506 1/2"6.3"13.3"Isolated CoilsUL Listed, CSA Certified
    		7425K3600000000
    120/208/240/480120/208/2401,0006 1/2"6.3"14.2"Isolated CoilsUL Listed, CSA Certified
    		7425K3700000000
    120/208/240/480120/208/2401,5009.9"9.4"17.6"Isolated CoilsUL Listed, CSA Certified
    		7425K3900000000
    120/208/240/480120/208/2403,0009.9"9.4"19.9"Isolated CoilsUL Listed, CSA Certified
    		7425K4200000000
     

    Enclosed Isolating Transformers

    These transformers have isolated primary and secondary coils to protect your sensitive equipment from input voltage spikes.
    Single Phase—Plug Input and Socket Output Connection
    Image of Product. Front orientation. Transformers. Enclosed Isolating Transformers, Single Phase—Plug Input and Socket Output Connection.
    Image of Specification. NEMA 5-15 Plug. Front orientation. NEMA 5-15. Enclosed Isolating Transformers.

    NEMA

    5-15

    Plug

    Image of Specification. NEMA 5-15 Socket. Front orientation. NEMA 5-15. Enclosed Isolating Transformers.

    NEMA

    5-15

    Socket

    Constant Voltage—When wired as constant-voltage transformers, they filter out voltage spikes and electrical noise.
    Voltage,
    V AC
    Output
    Input
    Input
    Output
    Power,
    VA
    Socket
    Connection
    Connection
    NEMA Type
    Plug Connection
    Connection
    NEMA Type
    Ht.
    Wd.
    Dp.
    Features
    Each
    Constant Voltage
    1151151503-Slot Straight5-15
    		3-Blade Straight5-15
    		3.9"3.1"4.2"Isolated Coils70245K710000000
    1151152503-Slot Straight5-15
    		3-Blade Straight5-15
    		4.7"3.8"4.4"Isolated Coils70245K72000000
    1151151,0003-Slot Straight5-15
    		3-Blade Straight5-15
    		5.3"4 1/2"8.1"Isolated Coils70245K74000000
     
    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
    Output
    Power, 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
    		6989K210000000
    120/240120/2402,00012"6.7"5.6"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		6989K23000000
    120/240120/2403,00013.1"7.7"6.8"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		6989K24000000
    120/240120/2405,00013.6"9.5"8.3"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		6989K2500000000
     
    Step-Down/Constant Voltage
    240/480120/24075011.3"5.3"6 1/2"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		7131K19000000
    240/480120/2401,00011.3"5.3"6 1/2"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		7131K21000000
    240/480120/2401,50013.3"6.3"7.8"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		7131K22000000
    240/480120/2403,00013.3"6.3"7.8"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		7131K23000000
    240/480120/2405,00015"10.2"10.6"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, C-UL Listed
    		7131K24000000
    240/480120/24010,00015.2"13 1/2"10.8"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, CSA Certified
    		7131K2600000000
    240/480120/24015,00020"10.8"13.6"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, CSA Certified
    		7131K2700000000
    240/480120/24025,00023"12.1"14.6"Isolated Coils, Sealed Coils, Sealed CoresOutdoor, WetNEMA 3R
    		UL Listed, CSA Certified
    		7131K2800000000
     

    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—Quick-Disconnect Input and Output Connection
    Image of Product. Front orientation. Transformers. Panel-Mount Variable-Voltage Transformers.
    Voltage,
    V AC
    Input
    Output
    Output
    Power, VA
    Max. Output
    Current, amp
    Quick-Disconnect
    Tab Wd.
    Ht.
    Wd.
    Dp.
    Certification
    Each
    Step-Down/Constant Voltage
    1200 to 1202101.750.25"3.3"2.9"1.9"CSA Certified
    		6994K310000000
    1200 to 1203002.50.25"3.3"2.9"2.1"CSA Certified
    		6994K32000000
    1200 to 12036030.25"3.3"2.9"2.4"CSA Certified
    		6994K33000000
    1200 to 12060050.25"4.4"3.8"3"CSA Certified
    		6994K34000000
     
    Single Phase—Screw-Terminal Input and Output Connection
    Image of Product. Front orientation. Transformers. Panel-Mount Variable-Voltage Transformers.
    Voltage,
    V AC
    Input
    Output
    Output
    Power, VA
    Max. Output
    Current, amp
    Ht.
    Wd.
    Dp.
    Certification
    Each
    Step-Up/Step-Down/Constant Voltage
    2400 to 2809803.55.6"4.4"4.2"CSA Certified
    		6994K420000000
     
    Step-Down/Constant Voltage
    1200 to 1201,200105.6"4.4"4.2"CSA Certified
    		6994K35000000
    1200 to 1201,440125.6"4.4"4.2"CSA Certified
    		6994K39000000
    1200 to 1201,800156.8"6.1"4.3"CSA Certified
    		6994K37000000
    1200 to 1203,000258.3"7.6"4.4"CSA Certified
    		6994K4400000000
    2400 to 2401,20055.6"4.4"4.2"CSA Certified
    		6994K36000000
    2400 to 2402,2809.56.8"6.1"4.6"CSA Certified
    		6994K38000000
     

    Touch-Safe High-Inrush Panel-Mount Transformers

    Prevent accidental contact with live electrical connections—the screw terminals are covered or recessed. These transformers can handle momentary high-inrush current associated with contactors, solenoids, and relays. Also known as control transformers.
    Single Phase—Screw-Terminal Input and Output Connection
    Image of Product. Front orientation. Transformers. Touch-Safe High-Inrush Panel-Mount Transformers.
    Constant Voltage—When wired for constant voltage, transformers filter out voltage spikes and electrical noise.
    Voltage,
    V AC
    Input
    Output
    Output
    Power, VA
    Ht.
    Wd.
    Dp.
    Features
    Certification
    Each
    Step-Down/Constant Voltage
    230/460/57524/115/2302504"4 1/2"4.8"Covered TerminalsUL Listed, C-UL Listed, CSA Certified, CE Marked
    		6718T510000000
    230/460/57524/115/2303004"4 1/2"5.3"Covered TerminalsUL Listed, C-UL Listed, CSA Certified, CE Marked
    		6718T52000000
    230/460/57524/115/2303504 1/2"5.3"5.4"Covered TerminalsUL Listed, C-UL Listed, CSA Certified, CE Marked
    		6718T53000000
    230/460/57524/115/2305004 1/2"5.3"6.6"Covered TerminalsUL Listed, C-UL Listed, CSA Certified, CE Marked
    		6718T54000000
    230/460/57524/115/2307506"6.4"7.4"Covered TerminalsUL Listed, C-UL Listed, CSA Certified, CE Marked
    		6718T55000000
    230/460/57524/115/2301,0006.3"6.8"7.8"Covered TerminalsUL Listed, C-UL Listed, CSA Certified, CE Marked
    		6718T56000000
     

    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
    Output
    Input
    Input
    Output
    Power,
    VA
    Socket
    Connection
    Connection
    NEMA Type
    Plug Connection
    Connection
    NEMA Type
    Max. Output
    Current, amp
    Ht.
    Wd.
    Dp.
    Features
    Certification
    Each
    Step-Up/Step-Down/Constant Voltage
    1200 to 1323303-Slot Straight5-15
    		3-Blade Straight5-15
    		2.55.3"6.1"4.1"Fuse, Power-Indicating LightCSA Certified
    		6994K110000000
    1200 to 1407003-Slot Straight5-15
    		3-Blade Straight5-15
    		55.3"6.1"4.1"Fuse, Power-Indicating Light—6994K14000000
    1200 to 1401,4003-Slot Straight5-15
    		3-Blade Straight5-15
    		107"4.6"5 1/2"Fuse, Power-Indicating LightCSA Certified
    		6994K17000000
    1200 to 1402,1003-Slot Straight5-15
    		3-Blade Straight5-15
    		159.4"6.2"6"Fuse, Power-Indicating LightCSA Certified
    		6994K2100000000
    1200 to 1403,0803-Slot Straight5-20
    		3-Blade Straight5-20
    		2210.9"8"6.3"Fuse, Power-Indicating Light—6994K2300000000
    2400 to 2809803-Slot Straight6-15
    		3-Blade Straight6-15
    		3.57"4.6"5 1/2"Fuse, Power-Indicating Light—6994K18000000
    2400 to 2802,6603-Slot Straight6-15
    		3-Blade Straight6-15
    		9.59.4"6.2"6"Fuse, Power-Indicating Light—6994K2200000000
     
    Step-Down/Constant Voltage
    1200 to 1201,4403-Slot Straight5-15
    		3-Blade Straight5-15
    		127"4.6"5 1/2"Fuse, Power-Indicating LightCSA Certified
    		6994K24000000
    2400 to 2401,2003-Slot Straight6-15
    		3-Blade Straight6-15
    		57"4.6"5 1/2"Fuse, Power-Indicating LightCSA Certified
    		6994K1900000000
     
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