Abb 9T51B0107 Buck Boost Autotransformer 0.25 kVA

Product Description

The ABB 9T51B0107 buck-boost transformers are small, single phase, dry type distribution transformers designed and shipped as insulating/isolating transformers. They have a dual voltage primary and a dual voltage secondary. These transformers can be connected for a wide range of voltage combinations. The most common use is to buck (lower) or boost (raise) the supply voltage a small amount, usually 5 to 27%.

• Comply with NEC Article 210-9, Exception 1, when field connected as an autotransformer.
• Feature encapsulated copper core and coils with integrated junction boxes for easy wiring
• Improved termination spacing and wiring compartment room gives greater flexibility in selecting various UL listed connectors for either copper or aluminum cable.

Product Highlights

These dry-type transformers are UL listed per Standard 506 and 1561, meeting the requirements of NEMA ST-20, 1992.

Product Information

Standard Information

• Brand: ABB
• Manufacturer Part Number: 9T51B0107

Technical Specifications

• Category: Buck Boost Autotransformer
• Phase: 1
• PriVoltage: 120x240
• SecVoltage: 12/24
• KVA: 0.25 KVA
• Coil Material: CU
• TempRise: 80 0C
• ElecShield: N
• Sub Type: Buck Boost
• Frequency: 60 Hz
• FrameSize: 8175
• TempClass: 180 0C
• AmbTemp: 40 0C
• InsulSys: IS-12
• KFactor: K1
• Enclosure Type: NEMA 3R
• UL: Yes
• cUL: Yes
• Brand: ABB
• Manufacturer Part Number: 9T51B0107
• Number of Phases: 1
• Power Rating: 0.25 kVA
• Primary Voltage: 120/240 VAC
• Secondary Voltage: 12/24 VAC
• Type: Low Voltage Dry Type Transformer
• Volt Amps: 250
• Transformer Voltage Phases: Single Phase
• Transformer VoltAmp: 250 VA
• Transformer Secondary Voltage Out: 12V
• Transformer Primary Voltage In: 120V
• Component: General Purpose Transformer