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QMARK Electric Wall & Ceiling Unit Heater: 208/240V AC, 1 or 3-phase - Standard Suspended Electric Wall & Ceiling Unit Heaters
QMARKStandard Suspended Electric Wall & Ceiling Unit Heaters

QMARK Electric Wall & Ceiling Unit Heater: 208/240V AC, 1 or 3-phase

The QMARK Electric Wall & Ceiling Unit Heater (SKU MUH0521, MPN MUH0521) is a standard suspended unit heater available in 208/240V AC, 1 or 3-phase configurations. It measures 16 in x 14 in x 7-1/2 in (H x W x D)…

SKU 3G-OTH-63131

Also listed as: MUH 0521 · MUH-0521

Brand
QMARK
Item
Electric Wall & Ceiling Unit Heater: 208/240V AC, 1 or 3-phase
Category
Standard Suspended Electric Wall & Ceiling Unit Heaters
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

QMARK
Manufacturer Part Number
MUH0521
Type
1 or 3-phase, 16 in x 14 in x 7-1/2 in
Voltage, Phase
208/240V AC, 1 or 3-phase
Overall Dimensions - H x W x D
16 in x 14 in x 7-1/2 in

Technical Documents

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

Product Description

The QMARK Electric Wall & Ceiling Unit Heater (SKU MUH0521, MPN MUH0521) is a standard suspended unit heater available in 208/240V AC, 1 or 3-phase configurations. It measures 16 in x 14 in x 7-1/2 in (H x W x D). This QMARK product is designed for wall or ceiling mounting.

Frequently Asked Questions

What is the QMARK MUH0521 electric unit heater used for?

The QMARK MUH0521 is a standard suspended electric unit heater designed for wall or ceiling mounting. It provides supplemental or primary heating in commercial and industrial spaces such as warehouses, workshops, and loading docks, using 208/240V AC power in single or three-phase configurations.

What are the specifications of the QMARK MUH0521 heater?

The QMARK MUH0521 operates on 208/240V AC, 1 or 3-phase power. Its overall dimensions are 16 in high by 14 in wide by 7-1/2 in deep. This unit heater is designed for wall or ceiling suspension and is manufactured by QMARK under part number MUH0521.

Where to buy the QMARK MUH0521 unit heater worldwide?

3G Electric supplies the QMARK MUH0521 unit heater to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order this 208/240V AC, 1 or 3-phase heater for your facility.

How to install a QMARK MUH0521 wall or ceiling heater?

Install the QMARK MUH0521 by securely mounting it to a wall or ceiling using appropriate hardware for the weight. Ensure the electrical supply matches the 208/240V AC, 1 or 3-phase rating. Follow local electrical codes and the manufacturer's manual for wiring and clearance requirements.

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.

QMARK Products

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

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Cross-referenced by specification & description
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SQUARE D Miniature Circuit Breaker: 25 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 1 Poles (MPN QOU125VH)
SQUARE D
SQUARE D Miniature Circuit Breaker: 25 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 1 Poles (MPN QOU125VH)
SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 2 Poles (MPN QOU250VH)
SQUARE D
SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 2 Poles (MPN QOU250VH)
SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 1 Poles (MPN QOU120VH)
SQUARE D
SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 1 Poles (MPN QOU120VH)

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