Description
Specifications
MT-BBT-249V-220V-20A-2X2FT-6.20 Buck and Boost Step-Down Prewired Transformer | Ratings |
Transformer Type: Buck/Boost Step-Down Autotransformer | NRTL Listed for United States |
Phase: Single Phase | CSA Certified for Canada |
Frequency: 50/60 Hz | NEMA 3R Indoor/Outdoor Enclosure |
Input Voltage: 249 V AC | Meets or Exceeds NEMA ST-20 Standards |
Primary Amps: 17.66 A @ 249 V AC | Buck and Boost Step-Down Transformer |
Primary Configuration: Two winding | |
kVA: 4.40 | |
Output Voltage: 220 V AC | |
Secondary Amps: 20 A @ 220 V | |
Transformer Efficiency: 88.4% | |
Primary Configuration: Two Winding | |
Winding Material: Aluminum | |
Wiring: Prewired with (2) 2' 12/3 SOOW Whips (One on each side) w/ Cord Caps | |
Cord Caps: 20A NEMA 6-20P Straight Blade Plug on Primary Side; 20A NEMA 6-20C Straight Blade Receptacle | |
Knockouts: Side and Rear | |
Primary Termination: Front Access Copper Tabs or Lead Wires | |
Secondary Termination: Front Access Copper Tabs or Lead Wires | |
Cooling: Air / Dry Type | |
Insulation: 130°C | |
Temperature Rise: 80°C | |
Sound Level: 36 dB | |
Enclosure Rating: NEMA 3R | |
Encapsulation: Silica Sand, Resin Compounds | |
Enclosure Material: Steel | |
Finish: ANSI 61 Grey | |
Mounting: Wall Mount via Mounting Tabs | |
Dimensions: 9.30"-H x 5.06"-W x 4.56"-D | |
Weight: 18 lb |
Product Overview
The MT-BBT-249V-220V-20A-2X2FT-6.20 single phase step-down Buck and Boost Transformer from Larson Electronics is powerful, reliable,and designed with the environment in mind. Suitable for both indoor and outdoor applications, the MT-BBT-249V-220V-20A-2X2FT-6.20 provides increased reliability, higher efficiency, protection against critical equipment failures and an extra level of protection by isolating the power source from the connected device. The lower operating costs, lower heat emissions and lower cost of ownership make this transformer ideal for a wide range of applications and businesses. The MT-BBT-249V-220V-20A-2X2FT-6.20 is a prewired transformer for customer installation and is equipped with 2` of 12/3 SOOW cable on each side connected to the transformer with a 20 amp NEMA 6-20P straight blade plug and the secondary side whip is equipped with a 20 amp NEMA 6-20C straight blade receptacle.
Transformer Features: The MT-BBT-249V-220V-20A-2X2FT-6.20 buck and boost transformer is a single phase unit with a 4.40 kVA rating and a primary voltage of 249 V AC using a maximum of 17.66 amps on the primary side. This step-down transformer has a secondary voltage of 220 V and provides up to 20 amps available on the secondary side. Featuring robust construction, this unit`s cores are manufactured with non-aging, cold-rolled silicon steel laminations using state of the art technology.
This unit boasts a low cost of ownership and is highly energy efficient. Lower heat emissions mean less cooling is needed as well. The NEMA 3R painted steel enclosure makes the unit suitable for both indoor and outdoor applications, and this step-down transformer can be wall mounted. The MT-BBT-249V-220V-20A-2X2FT-6.20 features a 130°C insulation with a 80°C temperature rise.
Construction: The aluminum winding in the MT-BBT-249V-220V-20A-2X2FT-6.20 are formed from high quality aluminum wire help to improve performance. The close tolerances used during manufacturing also eliminates burrs which hinder performance. Each core is specially coated to prevent the ingress of moisture and are electrically balanced to minimize axial forces during short circuit situations. Buck and boost transformers are designed to maximize the performance and life of electrical equipment. The MT-BBT-249V-220V-20A-2X2FT-6.20 is encapsulated in silica sand and resin, and cased in a NEMA 3R steel enclosure. NEMA 4, NEMA 4X, and NEMA 12 enclosures are available upon request.
Benefits: The MT-BBT-249V-220V-20A-2X2FT-6.20 buck/boost step-down transformer offers many benefits to the consumer. Buck/boost transformers pass the majority of the load voltage directly through the transformer, only transforming a small percentage of the load. Due to this technology, a smaller and quieter step-down transformer is manufactured and uses less materials. This provides owners with significant energy savings as well as offering environmental benefits.
Higher efficiency not only extends the life of the transformer, but also turn into cost savings for owners in the form of lower energy bills and decreased cost of ownership. Installation and maintenance costs are reduced due to the smaller form factor, and less overall space requirements are decreased. In addition, these step-down transformers operate quieter than a standard autotransformer of the same capacity.
Mounting: Integrated wall mounting brackets make installation fast and easy. Because of the smaller overall footprint, heavy machinery is rarely needed for mounting and installation.
Wiring/Installation: The MT-BBT-249V-220V-20A-2X2FT-6.20 is equipped with 2` 12/3 SOOW whips on both the primary and secondary sides. The primary side whip is equipped with a 30 amp NEMA 6-20P straight blade plug and the secondary side whip is equipped with a 30 amp NEMA 6-20C straight blade receptacle. This transformer makes installation simple. Operators connect them to the corresponding current. For example, the 208 V whip gets connected to 208 V current.
Applications: Air conditioners, lighting systems, heating elements, motor applications and other applications that that require the ability to power loads that differ from the available line voltage.
Limitations: While there are many benefits to a buck/boost transformer, there are some limitations to consider. This transformer will only transformer voltage, it will not convert phases, it will not create even legs between line 1 and line 2 (L1 and L2 WILL be UNEVEN), has no circuit isolation, and does not create a neutral for applications where a neutral is not already present. If any of these limitations apply to you, you will need a standard transformer. Please see below link for our standard line of industrial transformers or our line of phase converters.
Note on Phases: This buck/boost transformer is a single phase step-down transformers. For three phase transformers, click on the following links:
Three Phase Delta Buck/Boost Transformers
Three Phase Wye Buck/Boost Transformers
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