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Chromalox Dragon Portable DRA Industrial Electric Blower Spot Comfort Heater
Mor Electric Heating is an authorized distributor for Chromalox®
The Chromalox DRA is a rugged industrial grade, self contained, highly mobile, electric blower heater. The DRA can be left unattended without the threat of poisoning from combustion by-products associated with fuel fired heaters. The built in safety features include an adjustable thermostat to control the outlet air temperature, auto-reset cutouts for the fan motor and heating elements. The thermo-stat provides settings for full off, fan only and temperature control in the heating setting. Dragon heaters feature a large, easily accessible control and wiring compartment containing a magnetic contactor; additional safety is provided by a 120 volt control voltage transformer and motor starter on 480 and 600 volt units. The bright red polyester powder coated heating cylinder is highly visible and can be rotated to direct heat or fan driven air movement where it is needed. For assured safety, all standard units meet the requirements of UL (File No. E207486) and CSA (File No. LR40859).
Each side consists of a one piece, 12 gauge, formed steel member, which accepts a steel tubular handle, held in place with a 1 1/2" long x 1/4" bolt on each side. The handle can be raised from the shipping position if desired. The rubber, pneumatic wheels are 10" diameter and 3 1/2" wide to provide ease of transporting the heater on irregular and gravel surfaces. The large wheels make it easy to roll up stairways without damage to decorative step surfaces.
A structural frame consisting of 2 spun steel rings and 2 formed steel channels support a 20 gauge steel cylinder phosphate coated for corrosion resistance, and finished in red polyester powder coat paint. The heating cylinder pivots vertically to direct air flow.
Front and rear grills are 10 gauge finished in black polyester powder coat and are designed to meet OSHA safety requirements.
The patented metal sheath Fintube® heating elements consist of steel fins furnace brazed on industrial grade .475 diameter steel sheath tubular heaters for maximum heat transfer. The elements are held in place with steel bulkhead fittings for durability. The elements feature a high temperature finish for corrosive protection.
The self-centering fan assembly consists of a totally enclosed, permanently lubricated motor and a dynamically balanced aluminum fan blade for smooth, quiet operation.
A thermostat, with a temperature range of 40 °F to 100 °F is included, with a full off position, a fan only position and an adjustable range of temperature settings in the heating mode position. Each unit includes a 3 pole magnetic contactor and auto-reset thermal cutout. 480 volt and 600 volt units also include a motor relay and 120 volt control voltage transformer for personnel safety.
Cord & Plug Selection Guide:
Power Cord based on 600V Hard Service Cord Rated 90C
|Cubic Feet Heated In 2 Hours With One Heater:|
|Temperature Rise °F||
Heater Output kW
Area heated assumes 15’ maximum ceiling height and with little or no outside exposure. No roof or floor with outside exposure; only one wall exposed with not over 15% door and window area.
For heaters with a stock status of S (Stock): Typically in 5-7 workdays or less plus allow additional time for your selected UPS or FedEx shipping method.
For heaters with a stock status of NS (Non Stock): These products are non-returnable. Typically ships in 25-27 workdays or less plus allow additional time for your selected UPS or FedEx shipping method.
Cable kits and Plug kits are (S) Stock
Price below does not include shipping cost which is calculated using your address before entering your credit card number.
|Item Id||Catalog No.||kW||Volts||Phase||Amps*||BTU/H||HP||CFM||Temp Rise (°F)||Stock||Wt. (Lbs.)|
|CHROM295523||DRA-07-83||7.5||208||1 and 3||36.3/21.0||25,590||0.06||1070||23||NS||65|
|CHROM295531||DRA-07-23||7.5/5.6||240/208||1 and 3||31.5/18.3**||25,590||0.06||1070||23||S||65|
|CHROM295540||DRA-10-83||9.75||208||1 and 3||47.1/27.3||33,267||0.06||1070||31||S||65|
|CHROM295558||DRA-10-23||9.7/7.3||240/208||1 and 3||40.8/23.7**||33,267||0.06||1070||31||S||65|
|CHROM295582||DRA-15-43||15||480||1 and 3||31.4/18.2||51,180||0.06||1070||46||S||65|
|CHROM295596||DRA-15-93||15||600||1 and 3||25.2/14.6||51,180||0.06||1070||46||NS||65|
|CHROM295611||DRA-20-43||20||480||1 and 3||42.0/24.4||68,240||0.06||1070||62||S||75|
|CHROM295620||DRA-20-93||20||600||1 and 3||33.5/19.4||68,240||0.06||1070||62||NS||75|
+ = Temperature rise at 240V operation
* = Includes motor amps
** = 208V amperage is 86% of 240V value
All units are factory wired for 3 phase operation. Models designated 1 and 3 phase can be field wired for single phase operation.
|Item Id||Catalog No.||Plug Type||Description||Volts||Amps||NEMA#||ANSI#||Cable Dia|
|CHROM338845||PGL-15-20||Locking||3 Pole, 4Wire||250||20||L15-20||C73.85||.385”-.780|
|CHROM338853||PGL-15-30||Locking||3 Pole, 4 Wire||250||30||L15-30||C73.86||.385”-.780|
|CHROM338861||PGL-16-30||Locking||3 Pole, 4 Wire||480||30||L16-30||C73.88||.595”-1.150|
|CHROM338870||PGL-17-30||Locking||3 Pole, 4 Wire||600||30||L17-30||C73.89||.595”-1.150|
|CHROM338917||PGL-3763C||Locking||2 Pole, 3 Wire||600||50||-||-||.750”-1.125|
|CHROM338888||PGN-6-50||Non Locking||2 Pole, 3 Wire||250||50||6-50||C73.53||.625”-1.187|
|CHROM338896||PGN-15-20||Non Locking||3 Pole, 4 Wire||250||20||15-20||C73.59||.390”-.775|
|CHROM338909||PGN-15-50||Non Locking||3 Pole, 4 Wire||250||50||15-50||C73.61||.750”-1.250|
|The above plugs are designed to be used with specific ranges of cable diameters. If not used with Chromalox Cable Kits, check cable manufacturers cable diameter to be sure plug fits selected cable.|
Cable Kits for Chromalox DRA Series Portable Blower Heaters
Cable packages include 25 feet Type SO cable, with either 3-conductors or 4-conductors, depending on the heater requirements. Each cable assembly includes the proper cord (connector). Plugs are not included. All models are factory wired for 3-phase, but can be field wired for single phase, select plug and cord accordingly.
|Item ID||Catalog No.||Used on Heaters||Size/Type||Max. Amp||Temperature
|CHROM295427||PLC-2514-4||15kW 600V 3PH||14/4 SO||15||90 Deg.C||3/4”|
|CHROM295435||PLC-2512-4||7.5kW 240V 3PH
15kW 480V 3PH
20kW 600V 3PH
|12/4 SO||20||90 Deg.C||1”|
|CHROM295443||PLC-2510-3||15kW 600V 1PH||10/3 SO||30||90 Deg.C||1”|
|CHROM295451||PLC-2510-4||7.5kW 208V 3PH
9.75kW 240V 3PH
20kW 480V 3PH
|10/4 SO||25||90 Deg.C||1”|
|CHROM295460||PLC-2508-3||7.5kW 208V 1PH
7.5kW 240V 1PH
15kW 480V 1PH
20kW 600V 1PH
|8/4 SO||35||90 Deg.C||1”|
|CHROM295478||PLC-2508-4||9.75kW 208V 3PH
30kW 600V 3PH
|8/4 SO||35||90 Deg.C||1”|
|CHROM295486||PLC-2506-3||9.75kW 208V 1PH
9.75kW 240V 1PH
20kW 480V 1PH
|6/3 SO||55||90 Deg.C||1”|
|CHROM295494||PLC-2506-4||15kW 240V 3PH
30kW 480V 3PH
|6/4 SO||45||90 Deg.C||1”|
|CHROM295515||PLC-2504-4||19.5kW 240V 3PH||4/4 SO||60||90 Deg.C||1 1/4”|
|SO = hard Service Cord, 600V Length = 25 Feet|
|You must have the free Adobe Acrobat Reader plug-in.|
Chromalox® is a registered trademark.
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