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3G Electric
QMARK DS25 Disconnect Switch - Switches for Electric Wall & Ceiling Heaters
QMARKSwitches for Electric Wall & Ceiling Heaters

QMARK DS25 Disconnect Switch

The QMARK Disconnect Switch is a unit-mounted, 3-pole disconnect switch designed for use with all MUH heaters. It features a contact rating of 30A at 600V AC and supports 600V AC, 1 or 3-phase operation. The switch…

SKU 3G-OTH-66143

Also listed as: DS 25 · DS-25

Brand
QMARK
Item
DS25 Disconnect Switch
Part Number
DS25
Category
Switches for Electric Wall & Ceiling Heaters
Available to Order
Also known as:DS25QMARK
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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

QMARK
Manufacturer Part Number
DS25
Type
For All MUH Heaters, 25 A, Fits 3 kW_15 kW kW, Knob
AC
600V
Voltage
600V AC
Includes
Knob
Switch Type
3 Pole
For Use With
All MUH Heaters
Product Type
Disconnect Switch
Mounting Type
Unit-Mounted
Contact Rating
30A @ 600V AC
Voltage, Phase
600V AC, 1 or 3-phase

Technical Documents

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

Product Description

The QMARK Disconnect Switch is a unit-mounted, 3-pole disconnect switch designed for use with all MUH heaters. It features a contact rating of 30A at 600V AC and supports 600V AC, 1 or 3-phase operation. The switch includes a knob and is intended for electric wall and ceiling heaters.

Frequently Asked Questions

What is the QMARK DS25 disconnect switch used for?

The QMARK DS25 is a unit-mounted, 3-pole disconnect switch designed for all MUH electric wall and ceiling heaters. It provides a safe means to isolate power during maintenance or servicing, supporting 600V AC, 1 or 3-phase operation with a 30A contact rating.

What are the specifications of the QMARK DS25 disconnect switch?

The QMARK DS25 has a contact rating of 30A at 600V AC, supports 600V AC, 1 or 3-phase, and is a 3-pole, unit-mounted switch. It includes a knob and fits MUH heaters from 3 kW to 15 kW. The manufacturer part number is DS25.

Where to buy the QMARK DS25 disconnect switch worldwide?

3G Electric supplies the QMARK DS25 disconnect switch to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this unit-mounted switch for MUH heaters.

How to install the QMARK DS25 disconnect switch on a MUH heater?

Mount the QMARK DS25 directly on the MUH heater unit using the provided hardware. Ensure power is off, then connect the 3-pole switch per the wiring diagram for 600V AC, 1 or 3-phase. Always follow local electrical codes and the manufacturer's installation instructions.

Used in

Common applications for QMARK
Warehouse heating — QMARK MUH-Pro series suspended unit heaters for large open spaces with 208/240 V or 480 V supply.
Commercial building lobbies — QMARK CDF557RE recessed ceiling panel heaters for discreet, fan-forced heating.
Industrial workshops — QMARK MUH154 standard suspended heater for 480 V, 3-phase applications requiring high heat output.
Retail storefronts — QMARK MUH107 wall-mounted heater for 277 V, 1-phase circuits in ceiling or wall installations.
Manufacturing facilities — QMARK MUH102-PRO with integrated controls for simplified installation in multi-zone heating systems.
Office partitions — QMARK QSF2424 mounting frame for surface-mounting 54UD25 heaters in areas with limited ceiling access.
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QMARK Products

3G Electric supplies QMARK switches for electric wall & ceiling heaters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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