Buck-Boost Transformers (NEMA Rated) - 240x120 VAC to 24x12 VAC

• Ratings: Single phase from 50VA to 2kVA; 60 Hz
  
  
• 240x120 VAC primary
  
  
• 24x12 VAC secondary
  
  
• NEMA 3R rated
  
  
• Suitable for use as auto transformer or isolation transformer
  
  
• 240 x 120 VAC to 24 x 12 VAC transformers start at: $55.00 (416-1100-000)

Features

• Encapsulated with electrical grade resin
• Cores of high-quality electrical steel
• Aluminum/copper windings (see nameplate for product specific information)
• 60 Hz operation
• NEMA 3R-rated enclosures
• 135ēC temperature rise, 180°C insulation class or 95°C temperature rise, 130°C insulation class depending on kVA size
• Heat-cured ASA-61 gray powder coat finish
• Slotted mounting holes for quick and easy mounting
• Permanently affixed wiring diagram
• 10-year limited warranty (limited to mfg. defects)
• Single-phase encapsulated isolation transformer ratings 50VA to 2kVA
• Ambient temperature 0 - 25°C (32 - 77°F)
  (Per UL506, UL5085-1, 2 General Purpose Transformers)

Applications

• Air conditioners
• Heating elements
• Motor applications (not motor control circuits per NFPA 79 9.1.1.1)
• 277 volt supply for lighting systems
• Single-phase connections - require one transformer
• Three-phase open delta connections - require two transformers
• Three-phase wye delta connections - require three transformers
  
  
Note: Buck-boost transformers do not compensate for fluctuating line voltages.
They should only be used when line voltage is relatively constant.

Standards/Approvals

• Built in accordance with UL1446, CAN/CSA - C22.2 No. 0
• Agency Approval UL File #E4466

Buck-Boost Transformers Overview

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