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EXN45T3H – Low voltage transformer, DOE 2016, dry type, 3 phase, 45kVA, 480V pri, 208Y/120 sec, Al, 150C rise, Type 2
EXN45T3H
Low voltage transformer, DOE 2016, dry type, 3 phase, 45kVA, 480V pri, 208Y/120 sec, Al, 150C rise, Type 2

EXN three phase low voltage dry type distribution transformers from Square D comply with DOE energy conservation standards and Natural Resources Canada (NRCan) minimum energy efficiency levels. This transformer is a 45kVA, 480V primary (three wire), 208Y/120V secondary (four wire) with aluminum windings with a 220 insulation system design for 150 degree C temperature rise. This transformer’s DOE 2016 and NRCan efficiency is a minimum of 98.40% at 35% loading and 75°C temperature. Terminals are designed to accommodate wire ranges sized for 125% of the secondary nameplate current and 250% of the primary nameplate current. The terminals allow for NEMA two hole lugs and wiring bending radius to align with the wire ranges and to allow for side and bottom access. Units are natural air cooled with exhaust vents located on the front only, allowing the transformers to be mounted with rear clearance to obstructions of 1/2 inch. Units are shipped as Type 2 for indoor installation, field convertible to Type 3R via weathershield for outdoor installation. The transformers are floor mounted but field accessories are available for wall or trapeze (ceiling) mounting. EX transformers have a low sound level, with a minimum of 3dB below NEMA Standard ST-20 requirements. Units are specifically designed to function with other Square D equipment; inrush is coordinated to meet identified breaker trip curves, and IZ levels allow for let through current to match AIR levels of panelboards. See product data sheets for these values.

Brand: Schneider Electric

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Specifications
Range Of Product Square D
Product Or Component Type DOE 2016 energy efficient transformer
Transformer Type energy efficient
Device Application low voltage electrical distribution
Device Short Name DOE 2016
Tap Loss
  • 104 no load (core loss)
  • 1446 load loss (coil loss)
Network Frequency 60 Hz
Primary Voltage 480 V delta
Percentage Impedance Voltage 4.10 %
Height 745 mm
Number Of Mounting Holes 4 Ø: 13 mm
[Uimp] Rated Impulse Withstand Voltage 10 kV
Primary Operational Current 54.13-54.13 A 124.91 A 45 kVA
Temperature Rise
  • 150 °C
  • 220 °C insulated
Degree Of Protection
  • UL type 2
  • UL type 3R, with 7400WS18M19M20M
Number Of Tap-Offs
  • 2 2.5 % FCAN
  • 4 2.5 % FCBN
X/R Ratio 0.88
Rated Operational Power In Va 45 kVA
Electrical Connection
  • 2 Hole Nema Pad primary 11.1 mm
  • 2 Hole Nema Pad secondary 11.1 mm
  • 4 Hole Nema Pad sec - XO 11.1 mm
Phase 3 phase
Material aluminium
Net Weight 167.38 kg
Secondary Voltage 208Y/120 V
Percentage Reactance 2.60 %
Noise Level
  • 3 dB NEMA ST-20
  • 42 dB
Type Of Cooling natural convection
Efficiency 98.45 % at 35 % load factor , 75.0 °C
Mounting Support
  • floor
  • floor, with 7400FMB
  • ceiling, with 7400CMB18M19M20M
  • wall, with 7400WMB18M19M20M
Continuous Thermal Current Rating Factor
  • 492 16.6 %
  • 663 25 %
  • 1588 50 %
  • 3130 75 %
  • 5289 100 %
Width 648 mm
Depth 659 mm
Inrush Current 736 A
Box Number 19M
[Ipk] Rated Peak Withstand Current 3.05 kA
Rohs Exemption Information Yes
Mercury Free Yes
Environmental Disclosure ENVPEP1604028EN
Sustainable Offer Status Green Premium product
Pvc Free Yes
Toxic Heavy Metal Free Yes
Reach Regulation Free of Substances of Very High Concern above the threshold
California Proposition 65 WARNING: This product can expose you to chemicals including: Phenyl Glycidyl Ether, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Reach Free Of Svhc Yes
China Rohs Regulation Pro-active China RoHS declaration (out of China RoHS legal scope)
Eu Rohs Directive Compliant
Halogen Content Performance Halogen free plastic parts product
Average Ambient Air Temperature For Operation 30 °C
Ambient Air Temperature For Operation 40-40 °C
Standards
  • UL 1561
  • CSA C22.2 No 47
  • NEMA ST-20
Documents
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