Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
SQUARE D Dry Type Power Distribution Transformer: 480V AC, 120V AC/240V AC - Standard Single Phase Transformers
SQUARE DStandard Single Phase Transformers

SQUARE D Dry Type Power Distribution Transformer: 480V AC, 120V AC/240V AC

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
Dry Type Power Distribution Transformer: 480V AC, 120V AC/240V AC
Category
Standard Single Phase Transformers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SQUARE D Dry Type Power Distribution Transformer: 208V AC, 277V AC/480V AC Wye, 1, Floor, Aluminum (MPN EX225T212H). Key specifications — Mounting Location: Floor; Input Voltage: 208V AC; Output Voltage: 480V AC Wye; Voltage Function: Step Up; Winding Material: Aluminum; Brand: SQUARE D.
SQUARE D
SQUARE D Dry Type Power Distribution Transformer: 208V AC, 277V AC/480V AC Wye, 1, Floor, Aluminum (MPN EX225T212H). Key specifications — Mounting Location: Floor; Input Voltage: 208V AC; Output Voltage: 480V AC Wye; Voltage Function: Step Up; Winding Material: Aluminum; Brand: SQUARE D.
SQUARE D Dry Type Power Distribution Transformer: 208V AC, 277V AC/480V AC Wye, 1, Floor, Aluminum (MPN EX500T212H). Key specifications — Mounting Location: Floor; Input Voltage: 208V AC; Output Voltage: 480V AC Wye; Voltage Function: Step Up; Winding Material: Aluminum; Brand: SQUARE D.
SQUARE D
SQUARE D Dry Type Power Distribution Transformer: 208V AC, 277V AC/480V AC Wye, 1, Floor, Aluminum (MPN EX500T212H). Key specifications — Mounting Location: Floor; Input Voltage: 208V AC; Output Voltage: 480V AC Wye; Voltage Function: Step Up; Winding Material: Aluminum; Brand: SQUARE D.
SQUARE D Dry Type Power Distribution Transformer: 208V AC, 277V AC/480V AC Wye, 1, Floor, Aluminum (MPN EX300T212H). Key specifications — Mounting Location: Floor; Input Voltage: 208V AC; Output Voltage: 277V AC; Voltage Function: Step Up; Winding Material: Aluminum; Brand: SQUARE D.
SQUARE D
SQUARE D Dry Type Power Distribution Transformer: 208V AC, 277V AC/480V AC Wye, 1, Floor, Aluminum (MPN EX300T212H). Key specifications — Mounting Location: Floor; Input Voltage: 208V AC; Output Voltage: 277V AC; Voltage Function: Step Up; Winding Material: Aluminum; Brand: SQUARE D.
SQUARE D Transformer Disconnect: 500 VA Power Rating, Single Phase, 240 x 480V AC, 120V AC, 1 (MPN 9070SK500G1D1). Key specifications — Brand: SQUARE D; Input Voltage: 240 x 480V AC; Output Voltage: 120V AC; Phase: Single.
SQUARE D
SQUARE D Transformer Disconnect: 500 VA Power Rating, Single Phase, 240 x 480V AC, 120V AC, 1 (MPN 9070SK500G1D1). Key specifications — Brand: SQUARE D; Input Voltage: 240 x 480V AC; Output Voltage: 120V AC; Phase: Single.
SQUARE D Control Transformer: 240V AC/480V AC, 120V AC, Foot, 150 VA, Primary and Secondary Fuse (MPN 9070GO3D1). Key specifications — Brand: SQUARE D; Input Voltage: 480V AC; Mounting Location: Foot; Output Voltage: 120V AC; Phase: Single; Includes: Factory Installed Primary and Secondary Fuse.
SQUARE D
SQUARE D Control Transformer: 240V AC/480V AC, 120V AC, Foot, 150 VA, Primary and Secondary Fuse (MPN 9070GO3D1). Key specifications — Brand: SQUARE D; Input Voltage: 480V AC; Mounting Location: Foot; Output Voltage: 120V AC; Phase: Single; Includes: Factory Installed Primary and Secondary Fuse.
SCHNEIDER Dry Type Power Distribution Transformer: 240V AC/480V AC, 120V AC/240V AC, Floor/Wall (MPN EE15S3H). Key specifications — Brand: SCHNEIDER; Output Voltage: 240V AC; Winding Material: Aluminum; Input Voltage: 480V AC; Mounting Location: Wall.
SCHNEIDER
SCHNEIDER Dry Type Power Distribution Transformer: 240V AC/480V AC, 120V AC/240V AC, Floor/Wall (MPN EE15S3H). Key specifications — Brand: SCHNEIDER; Output Voltage: 240V AC; Winding Material: Aluminum; Input Voltage: 480V AC; Mounting Location: Wall.

More from SQUARE D

View all SQUARE D parts →