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1 Phase Buck and Boost Step-Down Transformer - 240V Primary - 208V Secondary at 26.6 Amps - 50/60Hz

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$426.23

$ 99 .00 $99.00

In Stock

About this item

  • Contact us today for information about custom options tailored to meet your specific needs
  • For safety reasons, we cannot accept returns on transformers, phase or frequency converters.
  • Once these products leave the factory, they cannot be resold and must be destroyed to ensure every unit sold is safe to use.



Product Description

The MT-BBT-240V-208V-26.6A 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-240V-208V-26.6A 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.

Transformer Features: The MT-BBT-240V-208V-26.6A buck and boost transformer is a single phase unit with a 5.53 kVA rating and a primary voltage of 240 V AC using a maximum of 23.4 amps on the primary side. This step-down transformer has a secondary voltage of 208 V and provides up to 26.6 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 either floor or wall mounted. The MT-BBT-240V-208V-26.6A features a 130°C insulation with a 80°C temperature rise.

Construction: The copper winding in the MT-BBT-240V-208V-26.6A are formed from high quality magnetic copper 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-240V-208V-26.6A 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-240V-208V-26.6A 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 manufacturered 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 requiorments 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.

Installation: Installation is simple. Connect the primary leads and secondary leads to the step-down transformer per the provided wiring diagram. Knockout hubs on either side and the bottom of the transformer allow for easy line-in and line-out wiring. The front access cover provides convenient.

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, 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.

Larson Electronics is a manufacturer and as such can build stationary and portable transformer systems to your specifications. Although we carry several models of power distribution transformer systems, we can deliver custom ordered units almost as quickly as our prebuilt units. If this model does not meet your needs, please get in touch with us to discuss your specific requirements.

Electrical Specifications

Input Voltage: 240 V AC
Phase: Single Phase
Frequency: 50/60 Hz
Primary Amps: 23.4 A @ 240 V
Primary Configuration: Two winding
kVA: 5.53
Output Voltage: 208 V
Secondary Amps: 26.6 A @ 208 V
Voltage Difference: 88%
Primary Configuration: Two winding

Safety & Form Factory Specifications

Transformer Type: Buck/Boost step-down Autotransformer
Winding Material: Copper
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 Finish
Mounting: Wall mount via mounting tabs
Dimensions: 11.25"H x 5.25"W x 6.50"D
Weight: 25 lb

Certifications and Ratings

USA Electrical Rating: Certified UL 1640 for Portable Power Distribution via ETL, a Nationally Recognized Testing Laboratory
Canada Electrical Rating: Certified CSA C22.2 No 14 for Portable Power Distribution via ETL, a Nationally Recognized Testing Laboratory
CE Certified: Certified to the following CE Directives: DIRECTIVE 2014/35/EU (Low Voltage Directive), DIRECTIVE 2014/30/EU (EMC Directive), Regulation (EC) No 1907/2006 (REACH Regulation), DIRECTIVE 2015/863/EU (ROHS Directive)
NEMA Weatherproof Rating: NEMA 3R Rated for both Indoor and Outdoor use – Receptacles certified for NEMA 3R In-Use weatherproof
Buy American Compliant: Made in the USA - Manufactured in Texas. This unit qualifies for Buy American Act purchases
Powder Coat Finish Standards: Complies with ASTM D-523, ASTM D-3359, ASTM D-522, ASTM D-3363, ASTM D-2794
ISO 9001 Quality Control: Larson Electronics LLC is an ISO 9001:2015 certified manufacturing facility
Additional Standards: This unit complies with the following design and safety standards: NFPA 70, ASTM A36, ASTM A123, ASTM A153, ASTM A489, ASTM A502, ASTM A563, ASTM A500, ASTM B172, ASTM D7803, SAE J429, AWS D1.1, ICEA S-58-679, ICEA S-75-381, NEMA OFP 1-2017, NEMA PB 1-2011, NEMA ST 20-2014, NEMA WD 1-1999 (R2015), ANSI C80.1-2015, ANSI C119.4-2016, ANSI Z535.4-2011, ANSI/IEC 60529-2004 (R2011)

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