45 kVA Buck-Boost Transformer
45 kVA buck-boost autotransformer for voltage correction in commercial lighting and motor circuits, adjustable taps from 208-240V to 120V. Single-unit design saves space, classified HTS 8504.33.0020 for capacity range.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If smaller capacity under 16 kVA
Buck-boost units in lower power bands classified accordingly.
If includes integrated circuit protection
Certain protective transformers with fuses classified as electrical apparatus.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Specify tap positions and voltage correction range (±10-20%) in commercial invoice
• NEMA ST 20 standards compliance for buck-boost configurations
Related Products under HTS 8504.33.00.20
18 kVA Marine Step-Down Transformer
18 kVA dry-type step-down transformer for shipboard use, 440V to 230V, IP56 enclosure with epoxy coating for saltwater environments. Meets ABS/DNV standards, HTS 8504.33.0020 for power capacity.
22 kVA Data Center UPS Transformer
22 kVA isolation transformer for online UPS systems in data centers, 208V to 120V with <3% impedance for clean power. Epoxy-filled for quiet operation, under HTS 8504.33.0020.
30 kVA Single-Phase Pole-Mount Distribution Transformer
This oil-immersed, single-phase transformer is designed for pole mounting in residential and rural electrical distribution systems, with a power handling capacity of 30 kVA at 7.2/124.7 kV primary voltage. It steps down medium voltage to 120/240V secondary for homes and small loads, falling under HTS 8504.33.0020 due to its capacity exceeding 16 kVA but not 50 kVA. Features include lightning arrestors and temperature protection for outdoor reliability.
25 kVA Pad-Mount Three-Phase Transformer
A three-phase, pad-mounted transformer rated at 25 kVA for underground residential distribution (URD), converting 12.47 kV to 208Y/120V. Enclosed in a tamper-resistant tank with radial bushings, it meets IEEE C57.12.34 standards and qualifies for HTS 8504.33.0020 based on its 16-50 kVA capacity. Ideal for apartment complexes and commercial pads.
40 kVA Dry-Type Ventilation Transformer
Dry-type transformer rated 40 kVA, 480V delta primary to 208Y/120V secondary, with NEMA 3R enclosure for HVAC and ventilation systems in commercial buildings. Lacks liquid insulation, using epoxy-resin windings for fire safety, classified in HTS 8504.33.0020 for its mid-range power capacity. Meets UL 1561 standards for indoor/outdoor use.
20 kVA Solar Inverter Transformer
Isolation transformer for grid-tie solar inverters, 20 kVA at 600V, galvanically isolating DC-AC conversion to prevent ground faults. Toroidal core design reduces harmonics, qualifying under HTS 8504.33.0020 for 16-50 kVA power handling in renewable energy systems.