Skip Content

Please Upgrade Your Browser Grainger will no longer support Internet Explorer 8 as of 07/2018. Please upgrade your browser or contact your System Administrator for support.


Control Transformer, Input Voltage: 277VAC, Output Voltage: 120VAC

  • Item # 4MTN7
  • My Part #
  • Mfr. Model # 4MTN7
  • Catalog Page # 206
  • Catalog Group # H8311
  • UNSPSC # 39121001
Control Transformer, Input Voltage: 277VAC, Output Voltage: 120VAC close

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.

CAD Downloads

Web Price $67.00 / each
Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Please sign in or register to access Quote

Want to Get Free Shipping?

  • Shipping Weight 3.42 lbs.
Country of Origin China Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

For fixed installation in cabinets or switchboards, this transformer features separate insulated windings with a heat-treated varnish that protects against dust, humidity, and corrosion. It can handle the high in-rush currents associated with contactors and relays. It requires separate overload and short-circuit protection.

View More

Technical Specs

  • Item - Transformer Control Transformer
  • Input Voltage - Transformer 277VAC
  • Output Voltage - Transformer 120VAC
  • VA Rating - Transformer 75VA
  • Protective Device None
  • Enclosure Style - Transformer Finger-Safe, Open
  • Mounting - Transformer Foot
  • Phase - Electrical 1
  • Hz - Electrical 50 Hz, 60 Hz
  • Temp. Rise 60 Degrees C
  • Enclosure Finish Heat Tempered Varnish
  • Height 3.5"
  • Depth 3.15"
  • Width 3.07"
  • Standards UL, CSA, CE
  • Manufacturers Warranty Length 3 yr.
How can we improve our Technical Specifications?

Compliance and Restrictions


Alternate Products

Alternate Products may not be identical in style or function to original selection. Please compare below for more information.

Customer Reviews

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.