Product Description
NA-277/250MC Step Down Transformer 277V/120V 250W by Nora Lighting is designed to step down 277V supply voltage to 120V, enabling compatibility with 120V devices. Ideal for installations requiring voltage conversion, this transformer is a reliable solution for commercial and residential settings.
Key Features:
- Reduces 277V supply voltage to 120V for compatibility with 120V devices.
- Supports up to 250W loads with a 25% de-rating for safety and reliability.
- Easily mounts to a junction box using standard knockouts.
- Supports dimming on the primary side (277V) and secondary side (120V) with compatible dimmers.
- Compact and durable design for seamless installation.
Specifications:
- Wattage: 250W
- Voltage: 277V to 120V
- Dimming: Dimmable with compatible dimmers on both primary (277V magnetic dimmer) and secondary (120V electronic dimmer) sides
- Installation: Attaches to junction box using standard knockouts
- Compliance: cULus Listed
- Dimensions: 3.4" x 3.5" x 2.9"
Installation Tips:
- Ensure proper de-rating by 25% when calculating the usable load.
- Install at least 3 inches away from thermal insulation and 1/2 inch from adjacent building components.
- Use a licensed electrician for proper installation on the junction box.
- Follow the wiring diagram in the included spec sheet for dimming setups.
Frequently Asked Questions:
Q: What types of dimmers are compatible with this transformer?
A: On the primary side, use a 277V magnetic low-voltage dimmer. On the secondary side, use a 120V electronic low-voltage dimmer.
Q: How should the load be calculated for this transformer?
A: The usable load should be de-rated by 25% for safe operation.
Q: Can this transformer be used with LED lighting?
A: Yes, it is compatible with LED loads when paired with the appropriate dimmers.
Q: What is the mounting method for this transformer?
A: It mounts to a junction box using standard knockouts.
Q: What safety clearances are required during installation?
A: Maintain a minimum clearance of 3 inches from thermal insulation and 1/2 inch from adjacent building components.
