AC Autotransformers

Step-Up/Step-Down Autotransformer -- N-1X
from Triad Magnetics

Description. Triad autotransformers are single winding single phase transformers in which the primary coil is a fraction of the entire winding for voltage step-up or the secondary coil is a fraction of the entire winding for voltage step-down. In ordinary double wound power transformers, the primary... [See More]

  • Output Type: AC
  • Mounting: Chassis
  • Winding Turns: Step-Up Transformer; Step-Down Transformer
  • Type: Single Phase Transformer; Encapsulated Transformers
Series Auto Transformer, TA-TAE-FPT
from Standex-Meder Electronics

TA-TAE-FPT Series Auto power transformers are line frequency magnetics designed in an open, enclosed package with an economical method of changing voltage levels. These auto transformers are widely used to operate electrical equipment outside of North America. Typically 50% smaller than similar... [See More]

  • Output Type: AC
  • Output Voltage: 115 to 230
  • Input Voltage: 115 to 230
  • Power Rating (VA): 50 to 2000
Auto-Transformer -- Model AZ85615
from Toroid Corp. of Maryland

Optional enclosure with or without cord, plug and receptacle [See More]

  • Output Type: AC
  • Core Type: Toroidal Core
  • Winding Turns: Step-Up Transformer
  • Mounting: Chassis; Dish/Disk
1.5kVA Buck-Boost Transformer: single-phase, 240x120 VAC to 24x12 VAC -- 416-1161-000
from Automationdirect.com

240x120 VAC 60Hz buck-boost transformer, 1.5kVA, single-phase, 240x120 VAC primary, 24x12 VAC secondary, NEMA 3R rated. Suitable for use as auto transformer or isolation transformer. [See More]

  • Output Type: AC
  • Input Voltage: 120 to 240
  • Operating Frequency: 60
  • Output Voltage: 120 to 240
Energy Efficient Single Phase Transformers: Group VIII - Auto-Transformers -240 Primary Volts - 120/240 Secondary Volts - 1Ø, 60Hz
from Acme Electric Corp. / Power Distribution Products

Acme's single phase transformers are design for use in industrial and commercial application. Transformers rated up to 25 kVA are enclosed within an encapsulated, NEMA 3R enclosures. Standard transformers rated from 37.5 to 250 kVA are enclosed in ventilated, NEMA 2 enclosures (optional... [See More]

  • Output Type: AC
  • Cooling Method: Air
  • Winding Turns: Step-Down Transformer
  • Type: Single Phase Transformer
Custom Toroidal Auto Transformers
from Amgis Toroidal Power Products, LLC

Using a toroidal auto transformer is always an economical solution when you need to step down the voltage from 230V to 120 V or vice versa, and the equipment already has a fully isolated transformer or when the components do not require an isolated transformer. Advantages of Toroidal Auto... [See More]

  • Output Type: AC
  • Core Type: Toroidal Core
  • Winding Turns: Step-Up Transformer (optional feature); Step-Down Transformer (optional feature)
  • Input Voltage: 120 to 230
Medium Voltage Dry-Type Autotransformers
from ABB Power Products/Power Systems

Autotransformers have a single winding with two end terminals, and one or more terminals at intermediate tap points, or a transformer in which the primary and secondary coils have part or all of their turns in common. The primary voltage is applied across two of the terminals, and the secondary... [See More]

  • Output Type: AC
  • Mounting: Pad-Mounted
  • Cooling Method: Air
  • Input Voltage: 1000 to 36000
1.5kVA Buck-Boost Transformer: single-phase, 240x120 VAC to 32x16 VAC -- 416-1261-000
from Automationdirect.com

240x120 VAC 60Hz buck-boost transformer, 1.5kVA, single-phase, 240x120 VAC primary, 32x16 VAC secondary, NEMA 3R rated. Suitable for use as auto transformer or isolation transformer. [See More]

  • Output Type: AC
  • Input Voltage: 120 to 240
  • Operating Frequency: 60
  • Output Voltage: 120 to 240
Energy Efficient Three Phase Transformers: Auto-Transformers - 600/480 Primary Volts - 480/380 Secondary Volts
from Acme Electric Corp. / Power Distribution Products

Acme ’s low voltage distribution transformers are designed for industrial and commercial applications. All of Acme ’s general purpose transformers are rated for 600 volts and below. Encapsulated units are offered in ratings up to 15kVA. Ventilated units are available in ratings up to... [See More]

  • Output Type: AC
  • Cooling Method: Air
  • Winding Turns: Step-Down Transformer
  • Mounting: Pad-Mounted
System Intertie Autotransformers
from ABB Power Products/Power Systems

Substation autotransformers transfer the incoming high voltage to the next lower voltage level. As an example, incoming high voltage of 400 kV would be transferred down to 220 kV. In general substation autotransformers are equipped with on-load-tap changers (OLTC). Incoming transmission lines are... [See More]

  • Output Type: AC
  • Mounting: Pad-Mounted
  • Cooling Method: Air
  • Type: Three Phase Transformers; Single Phase Transformer
100VA Buck-Boost Transformer: single-phase, 240x120 VAC to 24x12 VAC -- 416-1101-000
from Automationdirect.com

240x120 VAC 60Hz buck-boost transformer, 100VA, single-phase, 240x120 VAC primary, 24x12 VAC secondary, NEMA 3R rated. Suitable for use as auto transformer or isolation transformer. [See More]

  • Output Type: AC
  • Input Voltage: 120 to 240
  • Operating Frequency: 60
  • Output Voltage: 120 to 240
100VA Buck-Boost Transformer: single-phase, 240x120 VAC to 32x16 VAC -- 416-1201-000
from Automationdirect.com

240x120 VAC 60Hz buck-boost transformer, 100VA, single-phase, 240x120 VAC primary, 32x16 VAC secondary, NEMA 3R rated. Suitable for use as auto transformer or isolation transformer. [See More]

  • Output Type: AC
  • Input Voltage: 120 to 240
  • Operating Frequency: 60
  • Output Voltage: 120 to 240
150VA Buck-Boost Transformer: single-phase, 240x120 VAC to 24x12 VAC -- 416-1111-000
from Automationdirect.com

240x120 VAC 60Hz buck-boost transformer, 150VA, single-phase, 240x120 VAC primary, 24x12 VAC secondary, NEMA 3R rated. Suitable for use as auto transformer or isolation transformer. [See More]

  • Output Type: AC
  • Input Voltage: 120 to 240
  • Operating Frequency: 60
  • Output Voltage: 120 to 240
150VA Buck-Boost Transformer: single-phase, 240x120 VAC to 32x16 VAC -- 416-1211-000
from Automationdirect.com

240x120 VAC 60Hz buck-boost transformer, 150VA, single-phase, 240x120 VAC primary, 32x16 VAC secondary, NEMA 3R rated. Suitable for use as auto transformer or isolation transformer. [See More]

  • Output Type: AC
  • Input Voltage: 120 to 240
  • Operating Frequency: 60
  • Output Voltage: 120 to 240
1kVA Buck-Boost Transformer: single-phase, 240x120 VAC to 24x12 VAC -- 416-1151-000
from Automationdirect.com

240x120 VAC 60Hz buck-boost transformer, 1kVA, single-phase, 240x120 VAC primary, 24x12 VAC secondary, NEMA 3R rated. Suitable for use as auto transformer or isolation transformer. [See More]

  • Output Type: AC
  • Input Voltage: 120 to 240
  • Operating Frequency: 60
  • Output Voltage: 120 to 240