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DonganControl transformer

Dongan AP12-503, single-phase control transformer, 3.0 kVA

Industrial control transformer providing stable, isolated control voltage for machine tools, solenoids, magnetic switches, relays and HVAC controls.

SKU 3G-OTH-03903

Also listed as: AP12503 · AP12 503

Brand
Dongan
Item
AP12-503, single-phase control transformer, 3.0 kVA
Part Number
AP12-503
Category
Control transformer
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dongan
Manufacturer Part Number
AP12503
Series
Series AP12 & FP12
Phase
single-phase
Rating
3.0 kVA

Technical Documents

(1)
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Dongan Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Industrial control transformer providing stable, isolated control voltage for machine tools, solenoids, magnetic switches, relays and HVAC controls.

Frequently Asked Questions

What is the Dongan 3G-OTH-03903 control transformer used for?

The Dongan 3G-OTH-03903 is a single-phase control transformer rated at 3.0 kVA. It provides stable, isolated control voltage for industrial applications such as machine tools, solenoids, magnetic switches, relays, and HVAC controls.

What are the specifications of the Dongan 3G-OTH-03903?

The Dongan 3G-OTH-03903 is a single-phase control transformer from the Series AP12 & FP12, with a rating of 3.0 kVA. It is designed for industrial control applications requiring reliable voltage isolation and regulation.

Where to buy the Dongan 3G-OTH-03903 in Singapore?

You can source the Dongan 3G-OTH-03903 control transformer through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this item.

How to select the right control transformer for machine tools?

To select a control transformer like the Dongan 3G-OTH-03903, match the kVA rating (3.0 kVA) to the total load of solenoids, relays, and contactors. Ensure the primary voltage matches your supply and the secondary provides the required control voltage. Dongan transformers are designed for reliable isolation in industrial environments.

Used in

Common applications for Dongan
Industrial machine tools — Dongan HC-2000-41 control transformer for stable voltage to solenoids and relays
HVAC control panels — Dongan HC-1000-44 transformer for isolated power to thermostats and actuators
Motor control centers — Dongan HC-1500-4100 transformer for magnetic switch and relay circuits
Packaging machinery — Dongan HC-0750-4100 transformer for PLC and sensor power supply
Conveyor systems — Dongan HC-0500-4100 transformer for control voltage to motor starters
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Dongan Products

3G Electric supplies Dongan control transformer. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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