The MT-BBT-252V-240V-87.5A single phase step-down Buck and Boost Transformer from Larson Electronics is powerful, reliable, and designed with the environment in mind. This transformer is designed to decrease 252 volts to 240 volts, and is needed when the line-voltage is higher than the required voltage for equipment. Suitable for both indoor and outdoor applications, the MT-BBT-252V-240V-87.5A 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.
*PLEASE NOTE: ANY FREE SHIPPING OFFERS DO NOT APPLY TO POWER DISTRIBUTION PANELS, TRANSFORMERS, OR SUBSTATIONS*
Transformer Features: The MT-BBT-252V-240V-87.5A buck and boost transformer is a single phase unit with a 21 kVA rating and a primary voltage of 252 V AC using a maximum of 83.33 amps on the primary side. This step-down transformer has a secondary voltage of 240 V and provides up to 87.5 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.
The MT-BBT-252V-240V-87.5A is designed to decrease voltage from an input voltage of 252 volts to an output voltage of 240 volts. The decrease of voltage is necessary when the on-site line-voltage is consistently higher than the voltage required by the equipment being operated or installed, preserving the lifespan of the equipment and guarantees correct operation without risking damage due to incorrect voltage. This step-down transformer will allow equipment that draws up to 87.5 amps at 240 volts to be powered from 252 volt power sources. Situations for this type of transformer may include higher voltage from your electrical provider or within the existing establishment, or operating equipment that requires a higher voltage than is provided at the existing establishment.
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. This step-down transformer can be either floor or wall mounted. The MT-BBT-252V-240V-87.5A features a 130°C insulation with a 80°C temperature rise.
Construction: The aluminum winding in the MT-BBT-252V-240V-87.5A are formed from high quality aluminum wire helps to improve performance. The close tolerances used during manufacturing also eliminate 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-252V-240V-87.5A 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.
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Benefits: The MT-BBT-252V-240V-87.5A 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 material. This provides owners with significant energy savings as well as offering environmental benefits.
Higher efficiency extends the life of the transformer and turn into cost savings for owners in the form of lower energy bills and a decrease cost of ownership when compared to large autotransformers. 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.
Installation: Installation is simple. Connect the primary leads and secondary leads to the step-down transformer per the provided wiring diagram. Knockout hubs on both side and the bottom of the transformer allow for easy line-in and line-out wiring. The front access cover provides convenient access to the eight lead wires. The MT-BBT-252V-240V-87.5A is shipped with the necessary wire nuts for wiring this step-down transformer in-line between line voltage and equipment.
Applications: Air conditioners, lighting systems, heating elements, motor applications and other applications 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.
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
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 contact us at 1-800-369-6671 or firstname.lastname@example.org to discuss your specific requirements.
Specifications / Additional Information
|MT-BBT-252V-240V-87.5A Buck and Boost Step-Down Transformer
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|Transformer Type: Buck/Boost Step-Down Autotransformer
||UL listed for United States|
|Transformer Configuration: Buck (decrease)
||CSA certified for Canada|
|Phase: Single Phase
||NEMA 3R Indoor/Outdoor Enclosure|
|Frequency: 50/60 Hz
||Meets or Exceeds NEMA ST-20 Standards|
|Input Voltage: 252 V AC
||Buck and Boost Step-Down Transformer|
|Primary Amps: 83.33 A @ 252 V
|Primary Configuration: Two winding
|Output Voltage: 240 V AC
|Secondary Amps: 87.5 A @ 240 V
|Voltage Difference: 12 V
|Voltage % Difference: 95%
|Secondary Configuration: Two winding
|Winding Material: Aluminum
|Knockouts: Side and rear
|Wiring Termination: Front access (8) Lead Wires
|Cooling: Air / Dry Type
|Temperature Rise: 80°C
|Sound Level: 36 dB
|Enclosure Rating: NEMA 3R
|Encapsulation: Silica sand, resin compounds
|Enclosure Material: Steel
|Finish: ANSI 61 Grey / UL50
||Special Orders- Requirements|
|Mounting: Wall mount via mounting tabs
||Contact us for special requirements|
|Dimensions: 10.56"H x 5.88"W x 5.19"D
||Toll Free: 1-800-369-6671|
|Weight: 25 lb
|Wiring: Use Wiring Diagram C, includes wire nuts