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SQUARE D Isolation Transformer: 1 kVA Power Rating, 120/240V, 120/240V - Hardwired Isolation Transformers
SQUAREHardwired Isolation Transformers

SQUARE D Isolation Transformer: 1 kVA Power Rating, 120/240V, 120/240V

The SQUARE D Isolation Transformer (SKU 1S6FIS, MPN 1S6FIS) is a hardwired isolation transformer with a 1 kVA power rating. It operates at 120/240V primary and 120/240V secondary voltages. This product is…

SKU 3G-OTH-129545

Brand
SQUARE
Item
D Isolation Transformer: 1 kVA Power Rating, 120/240V, 120/240V
Category
Hardwired Isolation Transformers
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Technical Specifications

SQUARE
Manufacturer Part Number
1S6FIS
Type
120/240V, 120/240V, Hardwired, Hardwired

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

Product Description

The SQUARE D Isolation Transformer (SKU 1S6FIS, MPN 1S6FIS) is a hardwired isolation transformer with a 1 kVA power rating. It operates at 120/240V primary and 120/240V secondary voltages. This product is manufactured by SQUARE D.

Frequently Asked Questions

What is a SQUARE D isolation transformer used for?

A SQUARE D isolation transformer electrically separates the primary and secondary circuits to protect sensitive equipment from electrical noise and voltage spikes. It is commonly used in industrial control panels, HVAC systems, and machinery requiring clean, isolated power at 1 kVA.

What are the specifications of the SQUARE D 1S6FIS isolation transformer?

The SQUARE D 1S6FIS isolation transformer has a 1 kVA power rating with 120/240V primary and 120/240V secondary voltages. It features hardwired connections on both sides. This unit is manufactured by SQUARE D and is suitable for step-down or isolation applications in commercial and industrial settings.

Where to buy SQUARE D isolation transformers worldwide?

You can source the SQUARE D 1S6FIS isolation transformer through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this hardwired 1 kVA unit.

How to install a SQUARE D hardwired isolation transformer?

Installation must be performed by a qualified electrician following local codes. Mount the transformer securely, connect primary and secondary wires per the wiring diagram, and ensure proper grounding. Do not exceed the 1 kVA rating. Always de-energize circuits before making connections.

Used in

Common applications for SQUARE
Industrial power distribution — Square D HU362AWC non-fusible safety switch for disconnecting three-phase loads up to 60 A.
Busway branch circuits — Square D PQ4203G fusible bus plug for overcurrent protection in I-Line busway systems.
Panelboard surge protection — Square D HL4IMA24C SPD for transient voltage suppression in 277/480V AC wye systems.
Power distribution in control panels — Square D 9080LBA263106 open distribution block for splitting 400 kcmil conductors.
Machine control stations — Square D 9001BG303 push-button station for open/close/stop operations in industrial machinery.
Motor starting and protection — Square D 8536SBG2V02H30S NEMA starter for non-reversing three-phase motor control up to 18 A.

SQUARE Products

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

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