SCH-FreezGard Self-regulating Crankcase Heater

Trade Information

  • Brand Name:Jiahong
  • Place of Origin:Anhui,China
  • Min. Order Quantity:500m/model
  • Shipping Port:Any port in China
  • Lead Time:10-25 days after received payment
  • Payment Terms:100% TT in advance or negotiable
  • Certificates:UL

Product description

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FreezGard Self-Regulating Crankcase Heater for Refrigeration  Compressors

Prolong motor life and increase compressor efficiency

1.When compressors operate in cold areas, refrigerant can migrate into the crankcase oil whenever the compressor is not running. On start-up, this can cause excessive motor wear and a loss of refrigeration efficiency.

2.FreezGard self-regulating crankcase heaters provide reliable peak heating during critical cold periods and, unlike conventional constant-wattage heaters, reduce their heating once the compress-sor starts up or the air temperature rises. Also, self-regulating heaters can be safely overlapped and closely spaced without burning out; so one size fits all hermetic compressors up to 5 HP that are 40 inches or less in circumference.

3.Models for both 120 Vac and 208 to 277 Vac are available. Each comes with a flexible lockstrap and presripped 28-inch cold leads for easy connection and hard-wiring. Use only with refriger- action compressors in nonhazardous areas.

Product Characteristics

When temperatures drop, the carbon molecules in the conductive core of the FreezGard crankcase heater create a network of electrical paths that increase the heat output. At 0°F, for example, each heater has an output of 60 watts.

When the core temperature rises—as it does when the ambient temperature increases or where the heater is over- lapped on itself—the core expands and the network of electrical paths begins to disconnect. At 100°F, for example, each heater has an output of 15 watts. Therefore, the FreezGard crankcase heater can be overlapped without overheating.

Technical information

Service voltage (SCH1-CR)

120 V

Service voltage (SCH2-CR)

208–277 V

Power at 50°F (10°C)

32 watts (minimum)

Power at 0°F (–18°C)

60 watts (minimum)

Cold lead wire gauge

18 AWG

Cable width* (nominal)in/mm


Cable thickness* (nominal)in/mm

0.236 (0.60)

Cable length*in/mm

48 (1220)

Cold lead length*in/mm

28 (710)

Intermittent max. exposure temperature

185°F (85°C)

Insulation jacket type


Girth (wraparound) dimension*

40 (102) or less in circumference