We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
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 25D234, 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

Brand
QMARK
Item
Electric Wall & Ceiling Unit Heater: 208/240V AC, 1 or 3-phase
Category
Standard Suspended Electric Wall & Ceiling Unit Heaters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The QMARK Electric Wall & Ceiling Unit Heater (SKU 25D234, 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.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
QMARK Electric Wall & Ceiling Unit Heater: 600V AC, 3-phase, 21-3/4 in x 19 in x 7-1/2 in (MPN MUH076). Key specifications — Brand: QMARK; Voltage, Phase: 600V AC, 3-phase; Overall Dimensions - H x W x D: 21-3/4 in x 19 in x 7-1/2 in.
QMARK
QMARK Electric Wall & Ceiling Unit Heater: 600V AC, 3-phase, 21-3/4 in x 19 in x 7-1/2 in (MPN MUH076). Key specifications — Brand: QMARK; Voltage, Phase: 600V AC, 3-phase; Overall Dimensions - H x W x D: 21-3/4 in x 19 in x 7-1/2 in.
QMARK Recessed Electric Wall-Mount Heater: 1800 W/4000 W, 240V AC, Single Phase, 240V AC, 1-phase (MPN SSHO4004). Key specifications — Grille Color: White; Programming Capability: 5-2; Wattage Output: 1800 W/4000 W; Voltage, Phase: 240V AC, 1-phase; Rough-In Dimensions - H x W x D: 18-3/16 in x 14-1/4 in x 3-7/8 in; Nominal Voltage - HVAC: 240V AC; Brand: QMARK; Phase: Single.
QMARK
QMARK Recessed Electric Wall-Mount Heater: 1800 W/4000 W, 240V AC, Single Phase, 240V AC, 1-phase (MPN SSHO4004). Key specifications — Grille Color: White; Programming Capability: 5-2; Wattage Output: 1800 W/4000 W; Voltage, Phase: 240V AC, 1-phase; Rough-In Dimensions - H x W x D: 18-3/16 in x 14-1/4 in x 3-7/8 in; Nominal Voltage - HVAC: 240V AC; Brand: QMARK; Phase: Single.
QMARK Electric Baseboard Heater Thermostat: White, 120/277V AC, 40° to 100°F, 1 Poles, Unit Mount (MPN TA1AW). Key specifications — Housing Color: White; Voltage: 120/277V AC; Thermostat Control Range: 40° to 100°F; Thermostat Control Type: Mechanical Selector Dial; Mounting Type: Unit Mount; Brand: QMARK.
QMARK
QMARK Electric Baseboard Heater Thermostat: White, 120/277V AC, 40° to 100°F, 1 Poles, Unit Mount (MPN TA1AW). Key specifications — Housing Color: White; Voltage: 120/277V AC; Thermostat Control Range: 40° to 100°F; Thermostat Control Type: Mechanical Selector Dial; Mounting Type: Unit Mount; Brand: QMARK.
SQUARE D Miniature Circuit Breaker: 25 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 1 Poles (MPN QOU125VH). Key specifications — Phase: Single; Amps: 25 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 22kA at 120/240V AC; For Use With: Heating; Brand: SQUARE D.
SQUARE D
SQUARE D Miniature Circuit Breaker: 25 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 1 Poles (MPN QOU125VH). Key specifications — Phase: Single; Amps: 25 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 22kA at 120/240V AC; For Use With: Heating; Brand: SQUARE D.
SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 2 Poles (MPN QOU250VH). Key specifications — Phase: Single; Amps: 50 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 22kA at 120/240V AC; For Use With: Heating; Brand: SQUARE D.
SQUARE D
SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 2 Poles (MPN QOU250VH). Key specifications — Phase: Single; Amps: 50 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 22kA at 120/240V AC; For Use With: Heating; Brand: SQUARE D.
SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 1 Poles (MPN QOU120VH). Key specifications — Phase: Single; Amps: 20 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 22kA at 120/240V AC; For Use With: Air Conditioning and Refrigeration Equipment; Brand: SQUARE D.
SQUARE D
SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 1 Poles (MPN QOU120VH). Key specifications — Phase: Single; Amps: 20 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 22kA at 120/240V AC; For Use With: Air Conditioning and Refrigeration Equipment; Brand: SQUARE D.

More from QMARK

View all QMARK parts →
MUH-Pro includes a pre-installed disconnect switch, 24 VAC transformer and single-stage thermostat (MPN MUH078-PRO). Key specifications — Brand: QMARK; Voltage, Phase: 208 V, 1 or 3-Phase; Overall Dimensions - H x W x D: 19 in x 21.75 in x 7.5 in.
QMARK
MUH-Pro includes a pre-installed disconnect switch, 24 VAC transformer and single-stage thermostat (MPN MUH078-PRO). Key specifications — Brand: QMARK; Voltage, Phase: 208 V, 1 or 3-Phase; Overall Dimensions - H x W x D: 19 in x 21.75 in x 7.5 in.
QMARK Electric Wall & Ceiling Unit Heater: 208/240V AC, 3-phase, 30 in x 26-5/8 in x 11-3/4 in (MPN MUH252). Key specifications — Brand: QMARK; Voltage, Phase: 208/240V AC, 3-phase; Overall Dimensions - H x W x D: 30 in x 26-5/8 in x 11-3/4 in.
QMARK
QMARK Electric Wall & Ceiling Unit Heater: 208/240V AC, 3-phase, 30 in x 26-5/8 in x 11-3/4 in (MPN MUH252). Key specifications — Brand: QMARK; Voltage, Phase: 208/240V AC, 3-phase; Overall Dimensions - H x W x D: 30 in x 26-5/8 in x 11-3/4 in.
QMARK Electric Wall & Ceiling Unit Heater: 208V AC, 3-phase, 21-3/4 in x 19 in x 12-3/4 in (MPN MUH208). Key specifications — Brand: QMARK; Voltage, Phase: 208V AC, 3-phase; Overall Dimensions - H x W x D: 21-3/4 in x 19 in x 12-3/4 in.
QMARK
QMARK Electric Wall & Ceiling Unit Heater: 208V AC, 3-phase, 21-3/4 in x 19 in x 12-3/4 in (MPN MUH208). Key specifications — Brand: QMARK; Voltage, Phase: 208V AC, 3-phase; Overall Dimensions - H x W x D: 21-3/4 in x 19 in x 12-3/4 in.
MUH-Pro includes a pre-installed disconnect switch, 24 VAC transformer and single-stage thermostat (MPN MUH0381-PRO). Key specifications — Brand: QMARK; Voltage, Phase: 208 V AC, 1-Phase; Overall Dimensions - H x W x D: 16 in x 14 in x 7.5 in.
QMARK
MUH-Pro includes a pre-installed disconnect switch, 24 VAC transformer and single-stage thermostat (MPN MUH0381-PRO). Key specifications — Brand: QMARK; Voltage, Phase: 208 V AC, 1-Phase; Overall Dimensions - H x W x D: 16 in x 14 in x 7.5 in.
QMARK Electric Wall & Ceiling Unit Heater: 277V AC, 1-phase, 16 in x 14 in x 7-1/2 in (MPN MUH0371). Key specifications — Brand: QMARK; Voltage, Phase: 277V AC, 1-phase; Overall Dimensions - H x W x D: 16 in x 14 in x 7-1/2 in.
QMARK
QMARK Electric Wall & Ceiling Unit Heater: 277V AC, 1-phase, 16 in x 14 in x 7-1/2 in (MPN MUH0371). Key specifications — Brand: QMARK; Voltage, Phase: 277V AC, 1-phase; Overall Dimensions - H x W x D: 16 in x 14 in x 7-1/2 in.
QMARK Electric Wall & Ceiling Unit Heater: 480V AC, 3-phase, 21-3/4 in x 19 in x 7-1/2 in (MPN MUH104). Key specifications — Brand: QMARK; Voltage, Phase: 480V AC, 3-phase; Overall Dimensions - H x W x D: 21-3/4 in x 19 in x 7-1/2 in.
QMARK
QMARK Electric Wall & Ceiling Unit Heater: 480V AC, 3-phase, 21-3/4 in x 19 in x 7-1/2 in (MPN MUH104). Key specifications — Brand: QMARK; Voltage, Phase: 480V AC, 3-phase; Overall Dimensions - H x W x D: 21-3/4 in x 19 in x 7-1/2 in.
QMARK Electric Wall & Ceiling Unit Heater: 208/240V AC, 1 or 3-phase, 21-3/4 in x 19 in x 7-1/2 in (MPN MUH072). Key specifications — Brand: QMARK; Voltage, Phase: 208/240V AC, 1 or 3-phase; Overall Dimensions - H x W x D: 21-3/4 in x 19 in x 7-1/2 in.
QMARK
QMARK Electric Wall & Ceiling Unit Heater: 208/240V AC, 1 or 3-phase, 21-3/4 in x 19 in x 7-1/2 in (MPN MUH072). Key specifications — Brand: QMARK; Voltage, Phase: 208/240V AC, 1 or 3-phase; Overall Dimensions - H x W x D: 21-3/4 in x 19 in x 7-1/2 in.
QMARK Electric Wall & Ceiling Unit Heater: 600V AC, 3-phase, 16 in x 14 in x 7-1/2 in (MPN MUH0561). Key specifications — Brand: QMARK; Voltage, Phase: 600V AC, 3-phase; Overall Dimensions - H x W x D: 16 in x 14 in x 7-1/2 in.
QMARK
QMARK Electric Wall & Ceiling Unit Heater: 600V AC, 3-phase, 16 in x 14 in x 7-1/2 in (MPN MUH0561). Key specifications — Brand: QMARK; Voltage, Phase: 600V AC, 3-phase; Overall Dimensions - H x W x D: 16 in x 14 in x 7-1/2 in.