S39021-517-51 SQUARE D Control Transformer

Review SQUARE D Squares39021-517-51 Used Control Transformer Ser. Make Offer

The Square D S39021-517-51 Control Transformer, model 9070, is a versatile and reliable electrical component designed for use in various industrial and commercial applications. This transformer, manufactured by Square D, a leading name in electrical equipment, is built with the highest standards of quality and performance in mind.

This transformer is a single-phase, 50/60 Hz unit, designed to provide voltage regulation and current transformation functions. It is suitable for use with various types of electrical loads, including motors, generators, and other electrical equipment. The transformer is rated for a primary voltage of 480 volts and a secondary voltage of 120 volts, with a maximum continuous output of 25 amperes.

The S39021-517-51 Control Transformer is constructed using high-quality materials and advanced engineering techniques. The core is made of laminated silicon steel, which provides excellent magnetic properties and helps minimize power loss. The windings are made of copper wire, which offers superior conductivity and durability. The transformer is also equipped with a breather tube and a moisture-proof seal to prevent moisture intrusion and protect against corrosion.

This transformer features a compact and robust design, making it easy to install and maintain. It is housed in a sturdy, epoxy-coated steel case that provides excellent protection against environmental hazards. The transformer is also equipped with a grounded shield to help protect against electromagnetic interference.

The S39021-517-51 Control Transformer is designed to operate in harsh industrial environments and can withstand temperatures ranging from -40 F to 140 F. It is also UL listed, ensuring that it meets the stringent safety standards set by Underwriters Laboratories.

In summary, the Square D S39021-517-51 Control Transformer, model 9070, is a high-performance and reliable electrical component that is suitable for use in a wide range of industrial and commercial applications. Its advanced design, use of high-quality materials, and robust construction make it a durable and long-lasting solution for voltage regulation and current transformation needs.

The Square D S39021-517-51 Control Transformer 9070 is a crucial component in electrical systems, specifically for motor control applications. Here are some pros and cons that can help in deciding whether to purchase this transformer:

1. High-quality construction: Square D is a reputed brand known for its durable and reliable electrical equipment. This transformer is built to last with robust materials and design.

2. Versatility: The S39021-517-51 Control Transformer 9070 can be used in various applications, including industrial, commercial, and residential installations.

3. Efficient design: With an efficiency of up to 95%, this transformer can save energy and reduce operating costs.

4. Safety features: The transformer comes with several safety features, such as over-temperature protection, over-voltage protection, and short-circuit protection, ensuring safe operation.

5. Easy installation: The transformer's compact size and pre-wired terminals make installation straightforward and efficient.

1. Cost: The Square D S39021-517-51 Control Transformer 9070 is priced higher than some other transformers in the market, which might be a concern for budget-conscious buyers.

2. Limited capacity: With a maximum capacity of 15 kVA, this transformer may not be suitable for larger applications that require more power.

3. Bulkiness: Despite its compact size, the transformer is still relatively large and heavy, which might be a challenge for those with limited space or transportation capabilities.

The Square D S39021-517-51 Control Transformer 9070 offers several advantages, including high-quality construction, versatility, efficient design, and safety features, making it a reliable choice for motor control applications. However, its high cost, limited capacity, and bulkiness might be disadvantages for some buyers. Ultimately, the decision to purchase this transformer depends on the specific requirements of the application and the available budget.

If you have a motor control application that requires a reliable, efficient, and safe transformer, the Square D S39021-517-51 Control Transformer 9070 is a solid choice. However, if your budget is limited or you require a larger capacity transformer, it might be worth considering other options in the market. Regardless, it's essential to ensure that the transformer you choose meets the specific requirements of your application.

Details:

The approximate shipping weight is 3 lbs. This lot consists of: 1 new Atman 182. You are only buying the item pictured/described. Skf422 cup cone set.

Unless described as new above, items are used. Please let us know of your concern prior to opening a return. This item must be settled for immediately.

specifications alarmpartsacc:

• brand: Square D
• mpn: S39021-517-51
• model: 9070
• part type: Control
• country of origin: United States

returns alarmpartsacc:

• time: 30 days
• policy: returns accepted
• method: money back
• paid by: buyer

offer alarmpartsacc:

• in stock #: 5
• availability: in stock
• prices: $65.00–$999.99
• item condition:
  • Used
  • New – Open box
  • New
• best offers: true
• started: april 3, 2026
• sold #: 14
• options: ship-to-home

payments alarmpartsacc:

• other
• credit card: visa
• wallet: google-pay

shipping alarmpartsacc:

• service: usps ground advantage
• type: calculated
• transit: 4-8 days
• class: standard
• carrier: usps

general alarmpartsacc:

• category: Business & Industrial > Surveillance Equipment > Systems > Alarm Parts Accessories

seller alarmpartsacc:

• # reviews: 26979
• city: warrensburg, missouri
• rating: 100.0%