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DonganLighting disconnect

Dongan TMBK-170, single-phase lighting disconnect, 500 VA, 480 V primary / 120 V secondary

The Dongan 3G-OTH-04389 is a single-phase lighting disconnect from the Series TMBK Transformer Disconnect line. Rated at 500 VA with 480 V primary and 120 V secondary voltages, it operates at 50/60 Hz and weighs 20 lb.

SKU 3G-OTH-04389

Also listed as: TMBK 170 · TMBK-170

Brand
Dongan
Item
TMBK-170, single-phase lighting disconnect, 500 VA, 480 V primary / 120 V secondary
Part Number
TMBK170
Category
Lighting disconnect
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Technical Specifications

Dongan
Manufacturer Part Number
TMBK170
Series
Series TMBK Transformer Disconnect
Phase
single-phase
Rating
500 VA
Weight
20 lb
Frequency
50/60 Hz
Primary voltage
480 V
Secondary voltage
120 V

Technical Documents

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

Product Description

The Dongan 3G-OTH-04389 is a single-phase lighting disconnect from the Series TMBK Transformer Disconnect line. Rated at 500 VA with 480 V primary and 120 V secondary voltages, it operates at 50/60 Hz and weighs 20 lb.

Frequently Asked Questions

What is the Dongan TMBK-170 used for?

The Dongan TMBK-170 is a single-phase lighting disconnect used to provide safe isolation and power for control panel lighting and auxiliary power in industrial machinery. It is suitable for applications requiring 500 VA at 480 V primary and 120 V secondary, operating at 50/60 Hz.

What are the specifications of the Dongan TMBK-170?

The Dongan TMBK-170 is a single-phase lighting disconnect from the Series TMBK Transformer Disconnect line. It is rated at 500 VA with a primary voltage of 480 V and secondary voltage of 120 V, operating at 50/60 Hz. The unit weighs 20 lb and is UL and CUL Listed.

Where to buy the Dongan TMBK-170 in Singapore?

3G Electric supplies the Dongan TMBK-170 to Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this single-phase lighting disconnect. We provide technical support for industrial applications locally.

How to install the Dongan TMBK-170 lighting disconnect?

Install the Dongan TMBK-170 by mounting it securely in a NEMA 1/IP23 or NEMA 12/IP54/IP65 enclosure as per the datasheet. Connect the 480 V primary and 120 V secondary wiring per local codes. Ensure finger-safe terminals are used. Always disconnect power before installation.

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 lighting disconnect. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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