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Results
You searched for: KB Series 480V 3PH Unit Heater
Results Displayed: 1 - 50 of 50
Convenient, small and powerful are great words that describe our unit heaters which have been standard equipment in most high rise buildings, garages, water treatment and fire room vaults to prevent freezing. High mass steel elements and high CFM keeps outlet temperatures low for long life. For KB.s under 5KW, use the KBP Series for higher outlet temperatures. Other applications are residential garages and warehouse heating. Long life comes standard with the highest quality components custom designed for use in the KB Series Unit Heater.



* Spiral Steel Fin Element
* Cast Iron Motor
* Aluminum Fan Blade
* Heavy Gauge Steel Enclosure
* Adjustable Discharge Louvers
* Totally Enclosed Motor
* Control Options
* Auto-Reset Thermal Cutout
* Optional 1-Pole or 2-Pole Thermostat
* Tested Under UL1278
* Optional Summer Fan Switch
* Optional 3-Position Switch (Heat-Off-Fan)
* Optional Two Stage Thermostat
* Optional Pilot Light (Power On Indication)
* Optional Door Interlocking Disconnect
* Optional Wall Mounted Thermostat
* Available in Stainless Steel

Construction: All exterior and interior metal enclosure parts are made from 20GA electro galvanized steel with a rust inhibiting baked enamel finish. Smooth rounded corners and protective edge trim give an attractive modern appearance.

Adjustable Outlet Louver: Louvers direct air up or down as needed for the heating application.

Rear Intake Screen: Heavy gauge steel screen protects against foreign objects making accidental contact with the rotating fan blade.

Spiral Fin Elements: The metal sheath element is brazed with spiral fins and then molded into a coil configuration. This combination produces the best heat transfer while eliminating the potential for hot spots by positioning the element in the maximum airflow stream.

Totally Enclosed Fan Motor: Permanently lubricated cast iron with 20 cc of oil. Epoxy coated motor with enclosed rotor resists moisture and corrosion for long lasting trouble free operation.

Aluminum Fan Blade: Axial flow type fan mounted directly to the motor shaft for maximum efficiency.

Auto-Reset Thermal Cutout: Power is disconnected from the element if an overheated condition occurs. The fan continues to run to dissipate excess heat from the element. The element is reenergized automatically when the normal operating temperature returns.

Internal Controls: Magnetic contactors are standard on all 480V heaters, all 208V-1Ø, 240V-1Ø, 277V-1Ø heaters above 6-KW, and all 3Ø heaters. The control voltage is equal to the line voltage (208, 240 or 277) except for 480V models where a transformer is provided for 24V Control. Internal circuit fusing is provided when the heater ampacity exceeds 48 amps to comply with NEC standards. A fan delay is provided standard on models 12.5-KW and above to dissipate residual heat from the heating elements.

Easy Installation: A quick access panel located on the bottom of the heater allows for quick wiring and easy maintenance for the life of the heater.


Factory Installed Options:

Power Contactor: Standard on heaters above 5KW and on all 3-Phase models, optional on 2 to 6KW 1-Phase heaters.

24 Volt Control: Standard on 480V heaters, optional on all other heaters.

120 Volt Control: Control components will be modified to accept 120V control. (Not Standard)

Mounting: Choose universal or low profile ceiling bracket made from heavy gauge steel.

Rough Service: 5-Lugs are provided to securely mount heater in heavy industrial applications or marine vessels were vibration and movement are a concern. Includes 5-Hole Bracket.












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Installation Instructions
Item CodeDescriptionVendorQuantity
KINGELECTRIC15183
KB4866-3 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 66KW - 2700 CFM - 70F Temp Rise - 65ft Air Throw - 24VAC Control Voltage - Heater Size G
King Electric
KINGELECTRIC15180
KB4860-3 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 60KW - 2700 CFM - 70F Temp Rise - 65ft Air Throw - 24VAC Control Voltage - Heater Size G
King Electric
KINGELECTRIC15176
KB4850-3-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 50KW - 2400 CFM - 65F Temp Rise - 58ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size F
King Electric
KINGELECTRIC15175
KB4850-3 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 50KW - 2400 CFM - 65F Temp Rise - 58ft Air Throw - 24VAC Control Voltage - Heater Size F
King Electric
KINGELECTRIC15170
KB4840-3-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 40KW - 2200 CFM - 57F Temp Rise - 53ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size F
King Electric
KINGELECTRIC15169
KB4840-3 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 40KW - 2200 CFM - 57F Temp Rise - 53ft Air Throw - 24VAC Control Voltage - Heater Size F
King Electric
KINGELECTRIC13842
KB4833-3-T-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 33KW - 1800 CFM - 53F Temp Rise - 48ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size E
King Electric
KINGELECTRIC15165
KB4833-3 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 33KW - 1800 CFM - 53F Temp Rise - 48ft Air Throw - 24VAC Control Voltage - Heater Size E
King Electric
KINGELECTRIC19820
KB4830-3-T-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 30KW - 1800 CFM - 53F Temp Rise - 48ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size E
King Electric
KINGELECTRIC19819
KB4830-3-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 30KW - 1800 CFM - 53F Temp Rise - 48ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size E
King Electric
KINGELECTRIC13816
KB4830-3-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 30KW - 1800 CFM - 53F Temp Rise - 48ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size E
King Electric
KINGELECTRIC15162
KB4830-3 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 30KW - 1800 CFM - 53F Temp Rise - 48ft Air Throw - 24VAC Control Voltage - Heater Size E
King Electric
KINGELECTRIC13792
KB4825-3-T-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 25KW - 1350 CFM - 58F Temp Rise - 41ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size D
King Electric
KINGELECTRIC15131
KB4825-3-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 25KW - 1350 CFM - 58F Temp Rise - 41ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size D
King Electric
KINGELECTRIC13790
KB4825-3-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 25KW - 1350 CFM - 58F Temp Rise - 41ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size D
King Electric
KINGELECTRIC15130
KB4825-3 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 3 Phase 25KW - 1350 CFM - 58F Temp Rise - 41ft Air Throw - 24VAC Control Voltage - Heater Size D
King Electric
KINGELECTRIC13750
KB4820-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 20KW - 1100 CFM - 57F Temp Rise - 37ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size D
King Electric
KINGELECTRIC13749
KB4820-3MP-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 20KW - 1100 CFM - 57F Temp Rise - 37ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size D
King Electric
KINGELECTRIC13748
KB4820-3MP-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 20KW - 1100 CFM - 57F Temp Rise - 37ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size D
King Electric
KINGELECTRIC15122
KB4820-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 20KW - 1100 CFM - 57F Temp Rise - 37ft Air Throw - 24VAC Control Voltage - Heater Size D
King Electric
KINGELECTRIC15123
KB4818-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 18KW - 925 CFM - 55F Temp Rise - 33ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric
KINGELECTRIC13700
KB4815-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 15KW - 925 CFM - 51F Temp Rise - 33ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC13699
KB4815-3MP-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 15KW - 925 CFM - 51F Temp Rise - 33ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size B
King Electric
KINGELECTRIC13698
KB4815-3MP-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 15KW - 925 CFM - 51F Temp Rise - 33ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15120
KB4815-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 15KW - 925 CFM - 51F Temp Rise - 33ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric
KINGELECTRIC13646
KB4812-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 12.5KW - 825 CFM - 48F Temp Rise - 30ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC13647
KB4812-3MP-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 12.5KW - 825 CFM - 48F Temp Rise - 30ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size B
King Electric
KINGELECTRIC13644
KB4812-3MP-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 12.5KW - 825 CFM - 48F Temp Rise - 30ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15117
KB4812-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 12.5KW - 825 CFM - 48F Temp Rise - 30ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric
KINGELECTRIC13566
KB4810-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 10KW - 725 CFM - 44F Temp Rise - 24ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC13564
KB4810-3MP-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 10KW - 725 CFM - 44F Temp Rise - 24ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15113
KB4810-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 10KW - 725 CFM - 44F Temp Rise - 24ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric
KINGELECTRIC13536
KB4809-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 9KW - 725 CFM - 42F Temp Rise - 24ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC13535
KB4809-3MP-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 9KW - 725 CFM - 42F Temp Rise - 24ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size B
King Electric
KINGELECTRIC13534
KB4809-3MP-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 9KW - 725 CFM - 42F Temp Rise - 24ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15111
KB4809-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 9KW - 725 CFM - 42F Temp Rise - 24ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric
KINGELECTRIC13474
KB4807-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 7.5KW - 600 CFM - 40F Temp Rise - 20ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC13473
KB4807-3MP-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 7.5KW - 600 CFM - 40F Temp Rise - 20ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size B
King Electric
KINGELECTRIC13472
KB4807-3MP-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 7.5KW - 600 CFM - 40F Temp Rise - 20ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15109
KB4807-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 7.5KW - 600 CFM - 40F Temp Rise - 20ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric
KINGELECTRIC13442
KB4806-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 6KW - 400 CFM - 45F Temp Rise - 16ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15108
KB4806-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 6KW - 400 CFM - 45F Temp Rise - 16ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric
KINGELECTRIC13394
KB4805-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 5KW - 400 CFM - 40F Temp Rise - 16ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15106
KB4805-3MP-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 5KW - 400 CFM - 40F Temp Rise - 16ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size B
King Electric
KINGELECTRIC13392
KB4805-3MP-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 5KW - 400 CFM - 40F Temp Rise - 16ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15105
KB4805-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 5KW - 400 CFM - 40F Temp Rise - 16ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric
KINGELECTRIC13320
KB4803-3MP-T-B2 King Electric Unit Htr
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 3KW - 300 CFM - 35F Temp Rise - 14ft Air Throw - Includes Built In Thermostat (40 to 100F) and B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15104
KB4803-3MP-T King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 3KW - 300 CFM - 35F Temp Rise - 14ft Air Throw - Includes Built In Thermostat (40 to 100F) - Heater Size B
King Electric
KINGELECTRIC13318
KB4803-3MP-B2 King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 3KW - 300 CFM - 35F Temp Rise - 14ft Air Throw - 24VAC Control Voltage - Includes B2 Wall/Ceiling Mounting Bracket - Heater Size B
King Electric
KINGELECTRIC15102
KB4803-3MP King Electric Unit Heater
King Electric Large Area Unit Heater - KB Series - 480 Volt 1 or 3 Phase 3KW - 300 CFM - 35F Temp Rise - 14ft Air Throw - 24VAC Control Voltage - Heater Size B
King Electric