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hubbell-acmeelectric.comConstruction Features
D r y - T y p e D i s t r i b u t i o n T r a n s f o r m e r s
Encapsulated
Three Phase, 3 to 75 kVA
Features
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UL listed, CSA certified and UL-3R enclosure meets or exceeds all listing criteria including NEMA, ANSI and OSHA
standards.
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UL Class 180°C insulation system. 115°C rise.
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Extra large front access wiring compartment through 9 kVA; top access through 75 kVA for easier installation and cooler case
temperatures.
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Completely enclosed — suitable for indoor/outdoor service. Consult selection charts for details. Excellent for dust or lint laden
atmosphere.
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Encapsulated — electrical grade silica and resin compound completely encloses the core and coil. Encapsulation seals out
all moisture and air, eliminating corrosion and insulation deterioration.
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High efficiency and excellent regulation.
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Sound levels below NEMA standards.
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Keyhole mounting slots permit installation of mounting bolts prior to hanging transformer and are accessible from the front.
Lifting ears for easy installation.
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Wiring connections can be made outside of wiring compartment due to the use of flexible leads.
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3-9 kVA provided with dual size knockouts in sides and bottom of wiring compartment.
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Termination — copper lead wire.
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Electrostatic shielding provided on all 60 Hz isolation transformers.
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Available in 316 Stainless Steel.
316 Stainless Steel
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3R enclosure.
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Encapsulated construction.
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Single phase: 0.25 – 25 kVA.
Three phase: 3 – 75 kVA.
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Core and Coil assembly completely encapsulated in polyester or epoxy seals
out all moisture, eliminating corrosion and deterioration of insulation.
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Electrostatic shielding.
Applications
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Harsh industrial locations.
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Corrosive chemical exposure.
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Waste water treatment facilities.
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Coastal or marine applications with high salt mist.
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Any application where painted cold roll steel is not adequate.
NEMA 4X Enclosure
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Encapsulated construction
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Single phase: 0.250 – 5kVA
Three phase: 3 – 9kVA
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304 Stainless Steel
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Doors are sealed with a gasket
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Electrostatic shielding
Class 1 Division 2
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Encapsulated construction
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Three phase: 3 – 45kVA
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Groups A,B,C,D
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Temperature Class T3A
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Optional 316 Stainless Steel
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Electrostatic shielding