Mars 33266 Thermal Time Delay Relay DPST Heat Sequencer 240V

The Mars 33266 is a thermal time delay relay designed for electric heat sequencing applications in HVAC systems. This heat sequencer provides reliable timing control for electric furnaces, air conditioning units, and commercial refrigeration equipment.

Key Features:

• DPST (Double-Pole Single-Throw) normally open contact configuration
• 240V control voltage with 30A resistive load rating at 120/240V
• On delay timing: 20-70 seconds
• Off delay timing: 20-80 seconds
• 25 FLA at 240V capacity
• Operating temperature range: -50°F to 165°F
• PTC snap-acting disc for reliable contact make/break operation
• Shock and vibration resistant construction
• Non-positional mounting design
• UL and CSA listed for safety compliance

This thermal sequencer uses a positive temperature coefficient (PTC) heating element to provide consistent time delay control. Ideal for staging electric heat elements in furnaces and air handlers, ensuring proper load management and preventing electrical overload during startup.