Product Overview
The Signal Transformer LT Series (Lighting Transformer) offers Safety Extra Low Voltage (SELV) outputs, designed for OEM installations in landscape, track, recessed, and LED lighting, as well as security systems across commercial, consumer, and industrial sectors. These step-down transformers are essential for converting 120V or 277V to 12V when SELV outputs are required for control equipment and other electronic devices. The LT Transformer Series provides SELV isolation, eliminating potential shock hazards and contributing to a safer work environment. The LT277-50-12 is suitable for 480V, 3-phase 4-wire systems, while the LT120-50-12 is designed for single-phase 120V supplies.
Product Attributes
- Brand: Signal Transformer
- Series: LT Series (Lighting Transformer)
- Certifications: UL recognized to North American Harmonized standards (UL5085-1-2 and CSA C22.2 No. 66)
- Insulation: Class B (130C) UL 1446
- Lead Wire Connections: 18AWG UL 1015
- Construction: Rugged
- Coating: Corrosion-resistant surface coating
- Compliance: RoHS Compliant
- Custom versions available upon request.
Technical Specifications
| Part No. | VA | Primary Rating | Secondary Rating | Size (Inches) | Size (mm) | Weight lbs. (kg) |
|---|---|---|---|---|---|---|
| LT277-50-12 | 50 | 277V, 50/60 Hz | 12V @ 4.17 A | W: 2.60, H: 2.18, L: 3.10, LW: 6.0 | W: 66, H: 55.3, L: 78.7, LW: 152 | 1.7 (.77) |
| LT120-50-12 | 50 | 120V, 50/60 Hz | 12V @ 4.17 A | W: 2.60, H: 2.18, L: 3.10, LW: 6.0 | W: 66, H: 55.3, L: 78.7, LW: 152 | 1.7 (.77) |
Wiring Diagram: PRI 120V or 277V INPUT, SEC 12V OUTPUT. GRY (277V), ORN (120V), BLUE (SEC 12V), BLACK (PRI 120V), WHT (PRI 277V).
Mounting: Easy to mount and can be hardwired via standard 1/2" conduit hardware and a straight box connection.
Applications & Industries:
- OEM installations of landscape, track, recessed and LED lighting
- Security systems in the commercial, consumer and industrial sectors
2504101957_Bel-Fuse-LT277-50-12_C17301705.pdf
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