TUTCO CONDUCTIVE
Standard Crankcase Heaters
At TUTCO, innovation and quality are at the heart of everything we create, and our Standard Crankcase Heaters are no exception. Trusted by top compressor manufacturers worldwide, these heaters are designed for low-temperature applications that demand both simplicity and reliability. As the most cost-effective band heater available, they can reach temperatures exceeding 300°F and can be customized to meet the requirements of virtually any specialized application.
FEATURES AND BENEFITS
- Flexible and easy to install
- Stainless steel construction
- Provides superior heat sink
- Rapid heat up capabilities
- Cost-effective performance
- Capable of passing a 3000 VDC Hypot Test with < .01 mA leakage while fully submerged
- UL Rated
- Built with oil Resistant PVC lead wire which is superior to neoprene leads when oil is present
- Can operate in a Variety of environments including underwater, inside a block of ice, saltwater, and open air
| Specifications | |
| Voltage Rating | Up to 600 volts |
| Maximum Surface Temperature | 150°C (300°F) |
| Maximum Watt Density | 0.75W/cm² (4.5/in²) of circumference |
| Minimum Diameter | 150mm (6 Inch) |
| Width | 19mm (3/4 Inch) |
| Sheath Material | 304 Stainless Steel |
| Leads | PVC Insulation, 18 GA, 600V, 105°C |
| Ground Wire | Optional, welded to strap |
| Clamping Style | Quick Release Clamp, 301 SS Strap with 401 SS Hex Screw Head |
TERMINATION
Single Pass: Leads on each side of the gap, exiting on the thickness.
Double Pass & Narrow Double Pass: Both leads at one side of the gap, exiting on the thickness.
Frequently Asked Questions
The wattage should be enough to keep the compressor oil just above the coldest part of the system during off-cycles—but not so high that it wastes energy or overheats. Mounting style matters too: wrap-around heaters are simple to install on the compressor shell, while insertion or immersion heaters provide more direct heat. The key is good contact with the compressor surface and ensuring the heater matches your voltage, environment, and manufacturer recommendations.
Watch for these warning signs: the compressor trips on overload at startup, you hear unusual noises, or the oil looks foamy or diluted. You might also notice the heater itself feels cool when it should be warm, or that the mounting strap is loose or corroded. Catching these early can prevent damage to your compressor and save costly repairs.
Even if your compressor looks fine while it’s running, refrigerant can migrate into the oil when the system is off, especially in cold conditions. This dilutes the oil and reduces its ability to lubricate, which can cause serious problems when the compressor starts again. A crankcase heater keeps the oil warm enough to prevent refrigerant from condensing there, protecting the compressor from liquid slugging and oil washout, and helping it last longer.
