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DonganControl transformer

Dongan Series 33 Control Transformer

The Dongan 3G-OTH-03397 is a single-phase control transformer from the Series 33 Control line. It is rated at 0.100 kVA with a primary voltage of 240 x 480 V and a secondary voltage of 120 V, operating at 50/60 Hz…

SKU 3G-OTH-03397

Also listed as: 33100PM · 33 100 PM

Brand
Dongan
Item
Series 33 Control Transformer
Part Number
33-100-PM
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
Series
Series 33 Control
Phase
single-phase
Rating
0.100 kVA
Weight
4 lb
Frequency
50/60 Hz
Primary voltage
240 x 480 V
Secondary voltage
120 V
Dimensions HxWxD (in)
3.63 x 3.38 x 2.81

Technical Documents

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

Product Description

The Dongan 3G-OTH-03397 is a single-phase control transformer from the Series 33 Control line. It is rated at 0.100 kVA with a primary voltage of 240 x 480 V and a secondary voltage of 120 V, operating at 50/60 Hz. The unit weighs 4 lb and measures 3.63 x 3.38 x 2.81 inches.

Frequently Asked Questions

What is the Dongan 3G-OTH-03397 control transformer used for?

The Dongan 3G-OTH-03397 is a single-phase control transformer designed to step down line voltage for industrial control circuits, such as relays, contactors, and programmable logic controllers. It is commonly used in manufacturing, HVAC, and process automation applications where reliable 120 V control power is needed from a 240 x 480 V primary supply.

What are the specifications of the Dongan 3G-OTH-03397?

The Dongan 3G-OTH-03397 is a single-phase control transformer rated at 0.100 kVA. It features a primary voltage of 240 x 480 V and a secondary voltage of 120 V, operating at 50/60 Hz. The unit weighs 4 lb and measures 3.63 x 3.38 x 2.81 inches. It is part of the Series 33 Control line from Dongan.

Where to buy the Dongan 3G-OTH-03397 in Singapore?

3G Electric supplies the Dongan 3G-OTH-03397 control transformer to customers in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this single-phase 0.100 kVA unit. We provide technical support for industrial control applications locally.

How to select the right Dongan control transformer for my application?

To select the right Dongan control transformer, match the primary voltage (e.g., 240 x 480 V) and secondary voltage (e.g., 120 V) to your control circuit requirements. Ensure the kVA rating (0.100 kVA for the 3G-OTH-03397) exceeds the total load of connected devices. Verify frequency compatibility (50/60 Hz) and physical dimensions for your enclosure.

Used in

Common applications for Dongan
Machine tools — Dongan HC-1500-44 control transformer provides isolated 120 V control power for relays, solenoids, and contactors.
HVAC systems — Dongan 50-0500-059 control transformer supplies stable voltage for building automation controllers and damper actuators.
Variable speed drive systems — Dongan 63-2711SH drive isolation transformer protects SCR-controlled drives from line transients and voltage spikes.
Industrial power distribution — Dongan 41-1680SH general purpose transformer steps 480 V down to 120/240 V for lighting and receptacle panels.
Water treatment plants — Dongan 73-150-2698SH three-phase transformer provides efficient voltage conversion for pump stations and blowers.
Burner management systems — Dongan ignition transformers deliver high-voltage spark for reliable ignition of oil and gas burners in boilers and furnaces.
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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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Dongan
Dongan
Dongan 33-150-PM, single-phase control transformer, 0.150 kVA, 240 x 480 V primary / 120 V secondary, 50/60 Hz
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Dongan 33-250-PM, single-phase control transformer, 0.250 kVA, 240 x 480 V primary / 120 V secondary, 50/60 Hz
Dongan
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Dongan 33-050-18, single-phase control transformer, 0.050 kVA, 208 V primary / 24 V secondary, 50/60 Hz

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