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Heavy-Duty Electronic Unit Heater
kW Range: 3–40 kW
Voltage: 208V / 240V / 480V
Phase: 1Ø / 3Ø
Mounting: Wall or Ceiling Mount
Control: Built In ECO2S+ Electronic Thermostat. Includes provision for optional 24V thermostat or building management system integration.
Warranty: 5-Year Limited

Heavy duty electronic unit heater featuring PlatinumX 1-stage control, 24V thermostat compatibility, and building management system integration.
The KB PlatinumX BMS heavy duty unit heater combines dependable fan forced heating with King Electric’s PlatinumX electronic 1 stage thermostat and building management system integration. Designed for warehouses, garages, stores, high-rise buildings, water treatment rooms, fire room vaults, and other large or exposed areas, the unit provides reliable primary or supplemental heat with precise ±1°F temperature control. Built-in provisions for any 24V remote thermostat or BMS integration, handheld remote operation, summer fan only mode, timer mode, adjustable louvers, fan delay, and Smart Limit Protection make the KB PlatinumX BMS a flexible solution for commercial and industrial heating applications.
| MODEL | UPC | KW | BTUH | PHASE | VOLTS | AMPS | MOTOR HP | CFM | TEMP. RISE | AIR THROW | MAX. MOUNT HEIGHT | SIZE | WT. (lbs.) | REVIT | Purchase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KB2003-1-PLTMX-BMS | 70474 | 3.3 | 11,263 | 1 | 208 | 15.9 | 16W** | 520 | 20 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2004-1-PLTMX-BMS | 70475 | 4 | 13,652 | 1 | 208 | 19.2 | 16W** | 520 | 24 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2005-1-PLTMX-BMS | 70476 | 5 | 17,065 | 1 | 208 | 24 | 16W** | 520 | 30 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2007-1-PLTMX-BMS | 70477 | 7.5 | 25,598 | 1 | 208 | 36.1 | 25W** | 690 | 34 | 20ft. | 9ft. | B | 45 | Revit | Buy Now Close |
| KB2010-1-PLTMX-BMS | 70478 | 9.98 | 34,130 | 1 | 208 | 48 | 35W** | 800 | 39 | 24ft. | 10ft. | B | 45 | Revit | Buy Now Close |
| KB2012-1-PLTMX-BMS-FB | 70479 | 12.5 | 42,663 | 1 | 208 | 60.1 | 50W** | 935 | 42 | 28ft. | 11ft. | C | 50 | Revit | Buy Now Close |
| KB2015-1-PLTMX-BMS-FB | 70480 | 15 | 51,195 | 1 | 208 | 72.1 | 50W | 1050 | 45 | 33ft. | 12ft. | C | 50 | Revit | Buy Now Close |
| KB2403-1-PLTMX-BMS | 70481 | 3.3 | 11,263 | 1 | 240/208* | 13.8/11.9* | 9W | 520 | 20 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2404-1-PLTMX-BMS | 70482 | 4 | 13,652 | 1 | 240/208* | 16.7/14.4* | 9W | 520 | 24 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2405-1-PLTMX-BMS | 70483 | 5 | 17,065 | 1 | 240/208* | 20.8/18* | 9W | 520 | 30 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2407-1-PLTMX-BMS | 70484 | 7.5 | 25,598 | 1 | 240/208* | 31.3/27* | 16W | 690 | 34 | 20ft. | 9ft. | B | 45 | Revit | Buy Now Close |
| KB2410-1-PLTMX-BMS | 70485 | 10 | 34,130 | 1 | 240/208* | 41.6/36.1* | 16W | 800 | 40 | 24ft. | 10ft. | B | 45 | Revit | Buy Now Close |
| KB2412-1-PLTMX-BMS-FB | 70486 | 12.5 | 42,663 | 1 | 240/208* | 52.1/45.1* | 35W | 935 | 42 | 28ft. | 11ft. | C | 50 | Revit | Buy Now Close |
| KB2415-1-PLTMX-BMS-FB | 70487 | 15 | 51,195 | 1 | 240/208* | 62.5/54.1* | 50W | 1050 | 45 | 33ft. | 12ft. | C | 50 | Revit | Buy Now Close |
| KB2703-1-PLTMX-BMS | 70488 | 3 | 10,239 | 1 | 277 | 10.8 | 9W | 520 | 18 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2704-1-PLTMX-BMS | 70489 | 4 | 13,652 | 1 | 277 | 14.4 | 9W | 520 | 24 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2705-1-PLTMX-BMS | 70490 | 5 | 17,065 | 1 | 277 | 18.1 | 9W | 520 | 30 | 15ft. | 8ft. | A | 30.5 | Revit | Buy Now Close |
| KB2707-1-PLTMX-BMS | 70491 | 7.5 | 25,598 | 1 | 277 | 27.1 | 16W | 690 | 34 | 20ft. | 9ft. | B | 45 | Revit | Buy Now Close |
| KB2710-1-PLTMX-BMS | 70492 | 10 | 34,130 | 1 | 277 | 36.1 | 25W | 800 | 40 | 24ft. | 10ft. | B | 45 | Revit | Buy Now Close |
| MODEL | UPC | KW | BTUH | PHASE | VOLTS | AMPS | MOTOR HP | CFM | TEMP. RISE | AIR THROW | MAX. MOUNT HEIGHT | SIZE | WT. (lbs.) | REVIT | Purchase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KB2012-3-PLTMX-BMS | 70493 | 12.5 | 42,663 | 3 | 208 | 34.7 | 50W** | 935 | 42 | 31ft. | 12ft. | C | 50 | Revit | Buy Now Close |
| KB2015-3-PLTMX-BMS | 70494 | 15 | 51,195 | 3 | 208 | 41.6 | 50W | 1050 | 45 | 33ft. | 13ft. | C | 50 | Revit | Buy Now Close |
| KB2020-3-PLTMX-BMS-FB | 70495 | 20 | 68,260 | 3 | 208 | 55.5 | 1/4 HP | 1750 | 36 | 37ft. | 14ft. | E | 60 | Revit | Buy Now Close |
| KB2025-3-PLTMX-BMS-FB | 70496 | 25 | 85,325 | 3 | 208 | 69.4 | (2) 50W** | 1870 | 42 | 39ft. | 15ft. | F | 85 | Revit | Buy Now Close |
| KB2030-3-PLTMX-BMS-FB | 70497 | 30 | 102,390 | 3 | 208 | 83.2 | (2) 50W | 2100 | 45 | 41ft. | 17ft. | F | 85 | Revit | Buy Now Close |
| KB2412-3-PLTMX-BMS | 70498 | 12.5 | 42,663 | 3 | 240/208* | 30.1/26* | 35W | 935 | 42 | 31ft. | 12ft. | C | 50 | Revit | Buy Now Close |
| KB2415-3-PLTMX-BMS | 70499 | 15 | 51,195 | 3 | 240/208* | 36.1/31.2* | 50W | 1050 | 45 | 33ft. | 13ft. | C | 50 | Revit | Buy Now Close |
| KB2420-3-PLTMX-BMS-FB | 70500 | 20 | 68,260 | 3 | 240/208* | 48.1/41.6* | 1/4 HP | 1750 | 36 | 37ft. | 14ft. | E | 60 | Revit | Buy Now Close |
| KB2425-3-PLTMX-BMS-FB | 70501 | 25 | 85,325 | 3 | 240/208* | 60.1/52.0* | (2) 35W | 1870 | 42 | 39ft. | 15ft. | F | 85 | Revit | Buy Now Close |
| KB2430-3-PLTMX-BMS-FB | 70502 | 30 | 102,390 | 3 | 240/208* | 72.1/62.4* | (2) 50W | 2100 | 45 | 41ft. | 17ft. | F | 85 | Revit | Buy Now Close |
| KB2440-3-PLTMX-BMS-FB | 70503 | 40 | 136,520 | 3 | 240/208* | 96.2/83.2 | (2) 1/4 HP | 3500 | 36 | 43ft. | 19ft. | F | 100 | Revit | Buy Now Close |
| KB4820-3-PLTMX-BMS | 70504 | 20 | 68,260 | 3 | 480 | 24.1 | 1/4 HP | 1750 | 36 | 37ft. | 14ft. | E | 60 | Revit | Buy Now Close |
| KB4825-3-PLTMX-BMS | 70505 | 25 | 85,325 | 3 | 480 | 30.1 | (2) 35W | 1870 | 42 | 39ft. | 15ft. | F | 85 | Revit | Buy Now Close |
| KB4830-3-PLTMX-BMS | 70506 | 30 | 102,390 | 3 | 480 | 36.1 | (2) 50W | 2100 | 45 | 41ft. | 17ft. | F | 85 | Revit | Buy Now Close |
| KB4840-3-PLTMX-BMS-FB | 70507 | 40 | 136,520 | 3 | 480 | 48.2 | (2) 1/4 HP | 3500 | 36 | 43ft. | 19ft. | G | 100 | Revit | Buy Now Close |
| MODEL | UPC | KW | BTUH | PHASE | VOLTS | AMPS | MOTOR HP | CFM | TEMP. RISE | AIR THROW | MAX. MOUNT HEIGHT | SIZE | WT. (lbs.) | REVIT | Purchase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KB2003-3MP-PLTMX-BMS | 70508 | 3 | 10,239 | 1-3 | 208 | 14.4/8.3 | 16W** | 520 | 18 | 20ft. | 8ft. | C | 45 | Revit | Buy Now Close |
| KB2005-3MP-PLTMX-BMS | 70509 | 5 | 17,065 | 1-3 | 208 | 24/13.9 | 16W** | 520 | 30 | 20ft. | 8ft. | C | 45 | Revit | Buy Now Close |
| KB2007-3MP-PLTMX-BMS | 70510 | 7.5 | 25,598 | 1-3 | 208 | 36.1/20.8 | 25W** | 690 | 34 | 24ft. | 9ft. | C | 46.5 | Revit | Buy Now Close |
| KB2010-3MP-PLTMX-BMS | 70511 | 9.98 | 34,062 | 1-3 | 208 | 48/27.7 | 35W** | 800 | 39 | 29ft. | 11ft. | C | 46.5 | Revit | Buy Now Close |
| KB2403-3MP-PLTMX-BMS | 70512 | 3 | 10,239 | 1-3 | 240/208* | 12.5/7.2* & 10.8/6.2* | 9W | 520 | 18 | 20ft. | 8ft. | C | 45 | Revit | Buy Now Close |
| KB2405-3MP-PLTMX-BMS | 70513 | 5 | 17,065 | 1-3 | 240/208* | 20.8/12* & 18/10.4* | 9W | 520 | 30 | 20ft. | 8ft. | C | 45 | Revit | Buy Now Close |
| KB2407-3MP-PLTMX-BMS | 70514 | 7.5 | 25,598 | 1-3 | 240/208* | 31.2/18* & 27/15.6* | 16W | 690 | 34 | 24ft. | 9ft. | C | 46.5 | Revit | Buy Now Close |
| KB2410-3MP-PLTMX-BMS | 70515 | 10 | 34,130 | 1-3 | 240/208* | 41.7/24* & 36.1/20.8* | 25W | 800 | 40 | 29ft. | 11ft. | C | 46.5 | Revit | Buy Now Close |
| KB4803-3MP-PLTMX-BMS | 70516 | 3 | 10,239 | 1-3 | 480 | 6.3/3.6 | 9W | 520 | 18 | 20ft. | 8ft. | C | 45 | Revit | Buy Now Close |
| KB4805-3MP-PLTMX-BMS | 70517 | 5 | 17,065 | 1-3 | 480 | 10.4 & 6.0 | 9W | 520 | 30 | 20ft. | 8ft. | C | 45 | Revit | Buy Now Close |
| KB4807-3MP-PLTMX-BMS | 70518 | 7.5 | 25,598 | 1-3 | 480 | 15.6/9.0 | 16W | 690 | 34 | 24ft. | 9ft. | C | 46.5 | Revit | Buy Now Close |
| KB4810-3MP-PLTMX-BMS | 70519 | 10 | 34,130 | 1-3 | 480 | 20.8 & 12 | 25W | 800 | 40 | 29ft. | 11ft. | C | 46.5 | Revit | Buy Now Close |
| KB4812-3MP-PLTMX-BMS | 70520 | 12.5 | 42,663 | 1-3 | 480 | 26 & 15 | 35W | 935 | 42 | 31ft. | 12ft. | C | 50 | Revit | Buy Now Close |
| KB4815-3MP-PLTMX-BMS | 70521 | 15 | 51,195 | 1-3 | 480 | 31.3 & 18 | 50W | 1050 | 45 | 33ft. | 13ft. | C | 50 | Revit | Buy Now Close |
| ADD SUFFIX: | UPC | DESCRIPTION | WT. (LBS.) | Purchase |
|---|---|---|---|---|
| ECO-PRO-CONTROLLER | 70421 | Pro Controller - 7-Day Programmable Thermostat/Remote Sensor/Remote | 0.2 | Buy Now Close |
| ECO-PRO-RF-PIR-SENSOR | 70422 | Optional, RF Battery Powered PIR Occupancy Sensor for ECO Models | 0.2 | Buy Now Close |
| ECO-PRO-RF-WINDOW-SENSOR | 70423 | Optional, RF Battery Powered PIR Window or Door Sensor for ECO Models | 0.2 | Buy Now Close |
| MODEL | UPC | DESCRIPTION | WT. (lbs.) | Purchase |
|---|---|---|---|---|
| DS32 | 13480 | Disconnect Switch, Field Installed Kit, 32 AMP, 600V | 2 | Buy Now Close |
| DS63 | 13481 | Disconnect Switch, Field Installed Kit, 63 AMP, 600V | 2 | Buy Now Close |
| DS80 | 13482 | Disconnect Switch, Field Installed Kit, 80 AMP, 600V | 2 | Buy Now Close |
| DS100 | 13483 | Disconnect Switch, Field Installed Kit, 100 AMP, 600V | 5 | Buy Now Close |
| MODEL | UPC | DESCRIPTION | WT. (lbs.) | Purchase |
|---|---|---|---|---|
| KBB-1 | 13484 | Replacement Universal Wall/Ceiling Small Mounting Bracket (for heaters with size A heaters) | 1.9 | Buy Now Close |
| KBB-2 | 13485 | Replacement Universal Wall/Ceiling Large Mounting Bracket (for heaters with size B and C) | 2.6 | Buy Now Close |
| KBB-3 | 13488 | Replacement Universal Wall/Ceiling Large Mounting Bracket (for heaters with size F & G ) | 3.9 | Buy Now Close |
| KBHS | 13486 | Replacement Hook Swivel | 0.4 | Buy Now Close |
| KBHK | 13487 | Replacement Hardware Kit | 0.1 | Buy Now Close |
| BRACKET # | HEATER KW SIZE USED WITH | BRACKET DIMENSIONS | L | W | H | A | B | C | D | E | F | X | Y | Z | Purchase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KBB-1 | 3 to 5 kW (1 phase) | 12 1/2" | 2 15/16" | 10 1/16" | 1 3/16" | 7" | 1 7/8" | 1 7/8" | 9 1/4" | 1 7/8" | 3/4" | 1" | 1/2" | Buy Now Close | |
| KBB-2 | 7.5 to 10 kW (1 phase) 3 to 20 kW (3 phase) | 16 7/8" | 2 15/16" | 10 1/8" | 1 1/4" | 7" | 1 7/8" | 1 5/8" | 13 5/8" | 1 5/8" | 3/4" | 1" | 1 1/2" | Buy Now Close | |
| KBB-3 | 25 to 40 kW (3 phase) | 19 1/2" | 4 3/16" | 13 3/16" | 15/16" | 10" | 1 7/8" | 1 5/8" | 16 1/4" | 1 1/8" | 11/16" | 1" | 2" | Buy Now Close |
Furnish and install King Electric model KB PlatinumX BMS heavy duty electronic unit heater. Unit shall include PlatinumX electronic 1-stage thermostat control, building management system integration capability, built-in provision for any 24V remote thermostat, fan forced air circulation, adjustable discharge louvers, high mass steel fin heat exchanger, fan delay, and Smart Limit Protection. Heater shall include durable steel housing construction, wall or ceiling mounting provisions, and shall be cULus listed and manufactured in the USA.


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Stainless steel, ideal in heating and freeze protection of areas needing periodic hosing down. Extremely corrosive resistant with water tight components.
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