How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Square D 1S1F General Purpose Transformer Factory Sealed

$731.00 USD

Sale Sold out

✓ 30-day returns on every item — return policy

ConditionFactory Sealed MPN1S1F Stock #0526-02322

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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⚡ Same-day shipping available — order by 11 am CT ($100 add-on at checkout)

✓ Free domestic UPS Ground shipping — applied automatically at checkout.

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The Square D 1S1F is a 1 kVA single phase general purpose dry type transformer manufactured by Schneider Electric. Rated at 240 x 480V primary and 120/240V secondary, the unit operates at 60 Hz and carries UL and cUL listings. The core and coil assembly is resin encapsulated in epoxy and housed in a sealed painted sheet steel enclosure rated NEMA 3R, allowing installation in indoor or outdoor environments where airborne particles or contaminants are a concern. Typical applications include power, lighting, and heating circuits, as well as buck boost configurations within industrial control systems, machine tool electrical cabinets, HVAC equipment, and general purpose distribution. The transformer is wall mounted and includes 1/2 in. knockouts for conduit entry. Nameplate data indicates a unit weight of 21.2 lbs (9.6 kg), and the product is supplied with UPC 785901019862. The item is offered in its original factory sealed Square D carton with the yellow product label intact. Country of origin per nameplate is Mexico. The 1S1F is commonly specified in industrial maintenance, OEM machine builder, and facility electrical applications where a compact encapsulated single phase distribution transformer is required. Overall dimensions per published manufacturer data are approximately 8.13 in. high by 6.94 in. wide by 5.31 in. deep.

Stock # 0526-02322

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.