Vulcan
Vulcan OS1221-500A Strip Heater 120V 21 In 500W 1200 Deg F
A 120 V stainless-steel strip heater delivers 500 W over a 21 in length with a maximum sheath temperature of 1200 °F
- 120 V operation suits standard mains supply
- 500 W output with 10 W/sq in density
- 21 in overall length fits 20 in mounting centres
- Stainless steel sheath withstands 1200 °F max temperature
- UL Recognised component with included mounting tabs
Strip heater for surface heating
The Vulcan OS1221-500A is a stainless-steel strip heater designed for surface-mount applications that require up to 1200 degrees Fahrenheit. It operates on 120 volts single-phase power and delivers 500 watts across a 21-inch overall length.
Watt density and voltage define the limit
At 10 watts per square inch the heater suits moderate heat-flux tasks but cannot match high-density cartridge or band heaters. The 120-volt supply restricts total power to 500 watts, so larger areas or faster ramp rates need a different voltage or multiple units.
Replaces lower-temperature or shorter strip heaters
The jump is worth it when the process demands the full 1200-degree sheath rating or the 20-inch mounting span with slotted tabs. It does not suit buyers who need higher watt density, three-phase power or a sheath material other than stainless steel.
Highlights
- 120 V operation suits standard mains supply
- 500 W output with 10 W/sq in density
- 21 in overall length fits 20 in mounting centres
- Stainless steel sheath withstands 1200 °F max temperature
- UL Recognised component with included mounting tabs
Specifications
| Brand | VULCAN |
|---|
Questions about this item
Should I choose a 21-inch or shorter strip heater for my application?
The OS1221-500A is 21 inches overall with a 20-inch mounting dimension, so verify the available space before ordering.
What does the 500 W rating mean once the heater is installed?
It delivers 500 watts at 120 V with a density of 10 W/sq in, producing a maximum sheath temperature of 1,200 °F.
Is the UL Recognized marking enough for a permanent installation?
UL Recognized covers the component itself; final equipment approval depends on the complete assembly meeting applicable codes.
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