Protector 1, 2 and 3 Series

Thermal Overload Protection comes standard on all traditional style Process Technology over-the-side and bottom (L-shaped) industrial immersion heaters. Please check that these devices are properly installed to ensure safe operation of the heaters.

Alerts operators to identify and remedy the cause of overtemp conditions.

Features:

The Protector 1 Series
The Protector 1 overtemperature control system utilizes a heat sensitive fuse to detect overheat conditions. The protector, placed inside a thermowell, positioned in contact with the heater sheath, will cut power to the heater in the event of low liquid level.

The Protector 2 and 3 Series
The Protector 2 and Protector 3 systems provide the same reliable overtemperature protection as the Protector 1; however, the control systems feature a heat sensing thermostat. If the liquid level drops and the heater reaches a preset overheat temperature, the thermostat cuts power to the heater and an audible alarm activates. After filling the tank, the immersion heater can quickly be made operational by pushing the reset button on the control to restore power. Protector 3 is designed for flexible lead or high temperature fluoropolymer (PTFE) heater applications only. DO NOT wire P2, P6, P7 or P8 devices directly to power or heater load, as a dangerous short circuit will result with irreparable damage to the heater. Refer to wiring diagrams for proper installation.

Order replacement protectors by item number (below). P3 option not available on 8 and 9 kW elements. Lowest temperature replaceable style Protector standard unless otherwise designated.