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3G Electric
SQUARE D 25S40F Single Phase Transformer - Standard Single Phase Transformers
SQUARE DStandard Single Phase Transformers

SQUARE D 25S40F Single Phase Transformer

The SQUARE D Dry Type Power Distribution Transformer is a standard single-phase transformer designed for floor mounting. It steps down a 480V AC input to a 120V AC output and features aluminum windings. This unit is…

SKU 3G-OTH-48253

Brand
SQUARE D
Item
25S40F Single Phase Transformer
Part Number
25S40F
Category
Standard Single Phase Transformers
Available to Order
Also known as:25S40FSQUARE D
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE D
Manufacturer Part Number
25S40F
Type
Floor, Aluminum
AC/240V AC
120V
Input Voltage
480V AC
Output Voltage
120V AC
Winding Material
Aluminum
Mounting Location
Floor

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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D Dry Type Power Distribution Transformer is a standard single-phase transformer designed for floor mounting. It steps down a 480V AC input to a 120V AC output and features aluminum windings. This unit is identified by manufacturer part number 25S40F.

Frequently Asked Questions

What is the SQUARE D 25S40F dry type transformer used for?

The SQUARE D 25S40F dry type distribution transformer steps down a 480V AC input to a 120V AC output for powering lighting, control circuits, and low-voltage equipment in commercial and industrial facilities. Its floor-mount design suits indoor installations where a reliable single-phase power supply is needed.

What are the specifications of the SQUARE D 25S40F transformer?

The SQUARE D 25S40F is a single-phase dry type transformer with a 480V AC input and 120V AC output. It features aluminum windings and is designed for floor mounting. The manufacturer part number is 25S40F. This unit is suitable for standard power distribution applications.

Where to buy the SQUARE D 25S40F transformer worldwide?

3G Electric supplies the SQUARE D 25S40F dry type transformer to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this floor-mount, 480V AC to 120V AC unit.

How to install a SQUARE D floor-mount dry type transformer?

Install the SQUARE D 25S40F on a level, non-combustible floor surface with adequate ventilation. Follow local electrical codes and the manufacturer's wiring diagram for primary (480V AC) and secondary (120V AC) connections. Ensure proper grounding and clearance for maintenance access. Consult a qualified electrician.

Used in

Common applications for SQUARE D
Commercial electrical panels — QO and QOB miniature circuit breakers for overcurrent protection in load centers and panelboards.
HVACR equipment — 8910 Series Type DPA definite purpose contactors for switching compressor and fan motor loads.
Industrial power distribution — J-Frame molded case circuit breakers for main and feeder protection in switchboards.
Residential ground-fault protection — QO and QOB GFI circuit breakers for kitchens, bathrooms, and outdoor circuits.
Motor control centers — definite purpose contactors for controlling pumps, fans, and other moderate motor loads.
OEM machinery — Square D circuit breakers and contactors for integration into control panels and equipment.
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SQUARE D Products

3G Electric supplies SQUARE D standard single phase transformers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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