Markel Products Co. 57640004 Limit 321894-709 Engineered for furnace repair and

Engineered for furnace repair and professional maintenance

What is the difference between Option CC14 and CC6

eliminating the need for housing modifications

Cross-compatible with 191990A/U indices

Integrated Condensate Management: Includes a factory-supplied drain pan designed to withstand high temperatures and prevent water carryover

Markel Products Co. 57640004 Limit 321894-709 Engineered for furnace repair andThe Markel Products Co. 57640004 is a critical safety component designed for professional grade thermal management. This L300F Auto Reset Limit Switch is engineered to open the circuit at a fixed temperature of 300F (149C), providing essential over temperature protection for heating elements and internal components. As an auto reset limit, the device automatically restores electrical continuity once temperatures drop back to a safe operating range,