Product Description
The Jefferson Electric 421-7186-304 Transformer is a 25kVA, single-phase dry-type transformer designed for industrial and commercial applications.
This unit steps down 480V primary voltage to 277V secondary voltage, delivering efficient and reliable power for a variety of indoor or outdoor installations. Constructed with Class AA insulation and a NEMA 3R outdoor-rated enclosure, it is designed to withstand environmental conditions while providing long-lasting, dependable performance. With a 150°C winding rise and 60Hz frequency, this transformer is ideal for lighting, control systems, and general-purpose voltage step-down applications.
Key Features:
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Brand: Jefferson Electric
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Model: 421-7186-304
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Type: Dry-Type Transformer, Single Phase
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Power Rating: 25kVA
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Phase: 1 Phase
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Frequency: 60Hz
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Primary Voltage: 480V
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Secondary Voltage: 277V
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Winding Class: AA
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Enclosure: NEMA 3R (Outdoor/Indoor)
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Winding Temperature Rise: 150°C
Applications:
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Industrial & Commercial Power Distribution
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Outdoor & Indoor Installations
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Lighting & Control Systems
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General-Purpose 1-Phase Voltage Step-Down
