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Jefferson Electric Buck-Boost Transformers, Auto-Transformers and Isolation Transformers
Buck-boost transformers are designed to maximize the performance and life of electrical equipment. They are typically used to power loads with specific voltage requirements that differ from the available line voltage. A single buck-boost transformer is used to boost or buck single-phase voltage. Two or three units are required to boost or buck three-phase voltage. Buck-boost transformers can be connected as auto-transformers or isolated transformers.
When connected as an auto-transformer, these buck-boost transformers provide a means of raising (boosting) or lowering (bucking) a supply line voltage by a small amount (usually no more than 20 percent).
When connected as an isolation transformer, these power transformers can be used to step-down supply power to low voltage circuits at the nameplate rating listed.
Encapsulated with electrical grade resin
Cores of high-quality electrical steel
Aluminum/copper windings (see nameplate for product specific information)
60 Hz operation
NEMA 3R-rated enclosures
135ºC temperature rise, 180°C insulation class or 95°C temperature rise, 130°C insulation class depending on kVA size
Heat-cured ASA-61 gray powder coat finish
Slotted mounting holes for quick and easy mounting
Permanently affixed wiring diagram
10-year limited warranty (limited to mfg. defects)
Single-phase encapsulated isolation transformer ratings 50VA to 2kVA
Ambient temperature 0 - 25°C (32 - 77°F)
(Per UL506, UL5085-1, 2 General Purpose Transformers)