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DonganControl transformer

Dongan 33-250-PM, single-phase control transformer, 0.250 kVA

The Dongan 3G-OTH-03399 is a single-phase control transformer from the Series 33 Control line, rated at 0.250 kVA. It operates at 50/60 Hz with a primary voltage of 240 x 480 V and a secondary voltage of 120 V…

SKU 3G-OTH-03399

Also listed as: 33250PM · 33 250 PM

Brand
Dongan
Item
33-250-PM, single-phase control transformer, 0.250 kVA
Part Number
33-250-PM
Category
Control transformer
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Technical Specifications

Dongan
Manufacturer Part Number
33250PM
Series
Series 33 Control
Phase
single-phase
Rating
0.250 kVA
Weight
9 lb
Frequency
50/60 Hz
Primary voltage
240 x 480 V
Secondary voltage
120 V
Dimensions HxWxD (in)
4.25 x 3.75 x 4.500

Technical Documents

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

Product Description

The Dongan 3G-OTH-03399 is a single-phase control transformer from the Series 33 Control line, rated at 0.250 kVA. It operates at 50/60 Hz with a primary voltage of 240 x 480 V and a secondary voltage of 120 V. Weighing 9 lb, its dimensions are 4.25 x 3.75 x 4.500 inches.

Frequently Asked Questions

What is the Dongan 3G-OTH-03399 control transformer used for?

The Dongan 3G-OTH-03399 is a single-phase control transformer designed to step down line voltage to a lower voltage for industrial control circuits, such as relays, contactors, and programmable logic controllers. It is commonly used in manufacturing, HVAC, and process control 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-03399?

The Dongan 3G-OTH-03399 is a single-phase control transformer rated at 0.250 kVA. It operates at 50/60 Hz with a primary voltage of 240 x 480 V and a secondary voltage of 120 V. The unit weighs 9 lb and measures 4.25 x 3.75 x 4.500 inches. It is part of Dongan's Series 33 Control line.

Where to buy the Dongan 3G-OTH-03399 in Singapore?

3G Electric supplies the Dongan 3G-OTH-03399 control transformer to customers in Singapore. We source and deliver this model, handling logistics, customs clearance, and last-mile delivery to your facility. Contact our team for a quotation and lead time on your order.

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

To select the correct Dongan control transformer, first determine the required secondary voltage and VA rating for your control load. The 3G-OTH-03399 provides 120 V at 0.250 kVA. Verify that the primary voltage matches your supply (240 x 480 V) and that the frequency is 50/60 Hz. Always size the transformer to handle the inrush current of connected devices.

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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Allanson 444-BT636 Ferromagnetic Service Replacement Transformer
Single-phase definite purpose contactor with 2 poles and 2 normally open main contacts. Rated 30 A, coil voltage 110/110-120V AC, maximum 600V AC. Surface mount with quick disconnect and screw/box lug terminals. Used for switching loads such as compressors, fans, and pumps in HVAC and refrigeration equipment
Siemens
Single-phase definite purpose contactor with 2 poles and 2 normally open main contacts. Rated 30 A, coil voltage 110/110-120V AC, maximum 600V AC. Surface mount with quick disconnect and screw/box lug terminals. Used for switching loads such as compressors, fans, and pumps in HVAC and refrigeration equipment

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