
The QMARK MUH504 is an electric unit heater for wall or ceiling mounting, built for fixed-position space heating in commercial and industrial settings. This 50 kW, 480VAC, 3-phase unit moves up to 3,000 cfm and can be mounted horizontally or vertically, allowing it to be used for primary, supplementary, spot, or dual-system heating where electric unit heaters are specified.
Key Features of the QMARK MUH504 Electric Unit Heater:
- 50 kW wattage output: High-capacity electric heat output for larger heating demands.
- 480VAC, 3-phase, 50/60 Hz: Designed for use with 480-volt three-phase electrical systems.
- Airflow of 3,000 cfm: Moves a high volume of air to distribute heat through the space.
- 61°F air temperature rise: Indicates the increase in discharged air temperature across the unit.
- Wall or ceiling mounting: Supports installed heating from overhead or wall-mounted positions.
- Horizontal or vertical mounting: Unit can be oriented to suit layout and airflow requirements.
- Horizontal air throw of 60 ft and vertical floor coverage of 63 ft: Provides stated coverage distances for directional heating performance.
- Vertical mounting height of 25 ft: Lists the specified mounting height for vertical installation.
- Steel housing with powder-coated finish: Heavy-gauge steel construction with a finished exterior.
- 24V AC contactor coil voltage: Uses a 24-volt AC control circuit for the contactor.
- Requires two-stage thermostat: Intended to operate with a compatible two-stage thermostat.
- 3-pole switch type: Built with a 3-pole switching configuration.
- UL Listed: Certification rating explicitly provided for the unit.
- Overall dimensions: 30 in H x 26-5/8 in W x 17-1/4 in D.
🏢
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.