Description
74120-ES-TB325-01 Compact 325VA Step-Down Autotransformer for 480/347/277V Systems | CCT Selectable | UL 5085-3 Field Install
Delivering dependable step-down power for industrial and commercial LED driver applications, this Halco autotransformer simplifies field installations while ensuring safety compliance and long‑term reliability.
KEY FEATURES:
- High Capacity: 325 VA rating supports robust LED driver loads and lighting systems.
- Wide Input Support: Accepts 480V, 347V, or 277V inputs with corresponding low-voltage outputs for flexible deployment.
- Field-Ready Design: Built for field installation with clear wiring diagrams and safety rope mounting option.
- Safety & Durability: UL 5085-3 listed construction with a 5-year warranty for peace of mind.
- Low Thermal Stress: Limited winding temperature rise to help extend operational life.
APPLICATIONS:
- Ideal for industrial and warehouse lighting step-down installations.
- Well-suited for commercial exterior and parking lot lighting systems requiring lower driver voltage.
- Perfect for retrofit projects where LED drivers need stable reduced-voltage inputs.
- Usage Tip: Mount with the supplied safety rope and follow the wiring diagram for correct input/output lead connections.
SPECIFICATIONS:
- Model: 74120-ES-TB325-01
- SKU: HO-74120
- Type: Step-Down Autotransformer / 325VA Transformer-A Type
- VA Rating: 325 VA
- Input Voltage: 480Vac ±10% / 347Vac ±10% / 277Vac ±10%
- Output Voltage: 208Vac @ 480Vac / 150Vac @ 347Vac / 120Vac @ 277Vac
- Input Current: 0.75 A
- Output Current: 1.56 A
- Power Factor: 0.96
- Temperature Rise (Winding): 55 K
- Max Casing Temperature: 105 C
- Lead Lengths (14AWG): 220 mm
- Safety Standard: UL 5085-3 listed
- Warranty: 5 years
- Wire Colors: Neutral (white); 480V/347V/277V (Black); Neutral (Blue); Hot (Red)
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