The Freezing Burst Prevention Heater is used to prevent freezing burst mainly in air conditioners and other devices in winter by electric heating.Power rate depends on the size of the air conditioner and is generally in the range of 2 to 5KW.The Freezing Burst Prevention Heater has a simple built-in control system and begins to operate when power supply is provided. Operation Manual | View drawings | Quotation Request    Easy installation The control box is attached to the heater casing and no wiring work is required when installing the unit. No additional installation space required The heater and the control box are integrated together, and installed inside the air conditioner. Thus no additional installation space is required. Rust prevented As the heater is made of STS and the casing made of SGCC steel plate, rust is prevented semi-permanently. Various specifications Supply voltage can be 1Φ 220V, 3Φ 220V, 3Φ 380V, 3Φ 440V or any other specification on order. Any power rate other than standard 2 to 5 kW can be customized as ordered. Power loss prevented The unit operates automatically by a temperature controller, thereby minimizing unnecessary power loss. Semi-permanent life span No particular maintenance is required.