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Descrizione

Attivo maturo
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.
Country of Origin
MX
Part Number
EXN45T3H
Tariff Code
8504330020
EAN
39121001
UPC
785901272588
UNSPSC
39121001
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Complementary

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

Offer Sustainability

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)
Circularity Profile
N/A
Eu Rohs Directive
Compliant
Halogen Content Performance
Halogen free plastic parts product

Environment

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

Specifications

Range Of Product
Square D
Product Or Component Type
transformer
Transformer Type
energy efficient
Device Application
low voltage electrical distribution
Device Short Name
DOE 2016

Documenti

Data Sheet

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