AMP Magnetics
AMP Magnetics · Applied Manufacturing Partners

Transformer Specification Sheet

Fill in what you know — only your name, company and email are required. Defaults are typical values; leave anything you are unsure of and we will confirm it with you. Your answers go directly to our team. Sizing first? Try the kVA & full-load amps calculator. Need a reactor or harmonic filter instead? Use the selector above.

Your contact information

Project & part numbers

Our quote # (if you have one)
Leave blank if this is a new request.
Your PO #
Only if a purchase order already exists.
Your part number
The part number you use internally, if any.
Reference / existing part #
Nameplate or catalog number of a unit you are replacing or matching.
Part # revision
Quantity needed
Date needed by
Your target ship or on-site date.

General

Transformer type
Not sure? Leave it on Power and describe the use in the notes.
Size / rating
kVA is most common. A nameplate photo or one-line works too — mention it in the notes.
Frequency
Max inrush %
Skip unless you have a limit.
Impedance %Z
Skip unless your system study calls for a value.
Duty cycle
Ambient temperature
Hottest air temperature around the unit.
Insulation class
Leave the default if you are unsure.
Temperature rise
Leave the default if you are unsure.
Electrostatic shield
Common for drives and sensitive electronics.
Thermal protection (sensors / switches)
Efficiency requirement
e.g. DOE 2016, or leave Not specified.
K-factor (harmonic rating)
For loads with drives, rectifiers or lots of electronics.

Primary

Configuration
Use primary taps to select secondary voltages
Input (primary) voltage
Include any taps you need, e.g. 480 Δ ±2×2.5%.
Amperage
Amperage basis
Conductor
Tap / termination style
Hole size
Hole pattern
Hole location (from end)
Current transformer (CT)

Secondary

Configuration
Output (secondary) voltage
e.g. 208Y/120 or 240/120.
Voltage basis
Amperage
Amperage basis
Conductor
Tap / termination style
Hole size
Hole pattern
Hole location (from end)
Current transformer (CT)

Physical / core

Dimensions
Mounting dimensions
Mounting type
Cooling
Varnish

Enclosure

Enclosure type
Paint color

Notes & special requirements

Anything else we should know?
Application, load type, standards (UL/CSA/IEEE), sound level, site conditions, deadlines…
Drawings or documents
List anything you can email us (one-line, nameplate photo, datasheet). Reply to our email with the files.
You will get a printable copy after sending.