Siemens 3F3Y075ST 75 kVA Dry-Type Transformer

Siemens · Power Supplies & Transformers

Description  The Siemens 3F3Y075ST is a 75 kVA dry-type transformer designed for reliable three-phase power distribution in commercial and industrial electrical systems. It efficiently steps down 480 V input power to 120/208 V output, providing dependable low-voltage power for downstream equipment. Featuring an air-cooled design and a NEMA 1 enclosure, it offers long-term performance with minimal maintenance requirements.     Technical Specifications  Condition New/Never Used Surplus Brand Siemens Category Power Distribution Part Number 3F3Y075ST Subcategory Transformers Type Dry-Type Transformer Power Rating 75 kVA Voltage (High) 480 V Voltage (Low) 120/208 V Phase 3-phase Enclosure Type NEMA 1 (indoor use) Cooling Dry-type, air-cooled Application Step-down power distribution Standards UL listed Installation Floor or wall mounted depending on configuration Weight 12.00 lbs   Information About 3F3Y075ST The 3F3Y075ST is part of Siemens’ dry-type transformer line, designed to provide safe and efficient step-down power conversion for 3-phase systems. With a 75 kVA rating, it is capable of handling medium-to-large scale loads in commercial buildings, industrial plants, and institutional facilities. The transformer reduces incoming 480 V power to 120/208 V, making it suitable for distribution to standard low-voltage systems. Housed in a NEMA 1 rated enclosure, the unit is built for indoor installations where protection against dust and incidental contact is required. Its air-cooled, dry-type design minimizes maintenance needs while ensuring long service life. Key Features:   75 kVA Power Rating: Provides reliable capacity for medium- to large-scale commercial and industrial electrical loads. Three-Phase Design: Supports balanced power distribution for demanding industrial applications. Step-Down Voltage Conversion: Converts 480 V primary voltage to 120/208 V secondary voltage for standard electrical systems. Dry-Type Cooling: Air-cooled construction eliminates oil maintenance while improving operational safety. NEMA 1 Enclosure: Designed for secure indoor installation with protection against accidental contact. UL Listed: Certified to recognized safety standards for commercial and industrial applications. Industrial Construction: Built for continuous operation in demanding power distribution environments. Flexible Installation: Suitable for floor or wall mounting depending on the installation configuration. The 3F3Y075ST delivers the reliability and precision required for efficient three-phase power distribution in commercial, industrial, and institutional electrical systems.

Brand: Siemens · Category: Power Supplies & Transformers

Key features

• 75 kVA Power Rating: Provides reliable capacity for medium- to large-scale commercial and industrial electrical loads.
• Three-Phase Design: Supports balanced power distribution for demanding industrial applications.
• Step-Down Voltage Conversion: Converts 480 V primary voltage to 120/208 V secondary voltage for standard electrical systems.
• Dry-Type Cooling: Air-cooled construction eliminates oil maintenance while improving operational safety.
• NEMA 1 Enclosure: Designed for secure indoor installation with protection against accidental contact.
• UL Listed: Certified to recognized safety standards for commercial and industrial applications.
• Industrial Construction: Built for continuous operation in demanding power distribution environments.
• Flexible Installation: Suitable for floor or wall mounting depending on the installation configuration.

Specifications

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