MARS 33267 Sequencer
As a seasoned technician, you know that timed staging is critical for preventing circuit overload and maintaining steady discharge temperatures in electric furnaces and heat pumps. The MARS 33267 Sequencer is a reliable, non-positional field replacement designed for multi-stage heating systems. This 240V 1SPDT 3N/O Sequencer utilizes a solid-state PTC (Positive Temperature Coefficient) heater to ensure stable, snap-action switching. The MARS 33267 features a 1 Form C SPDT contact configuration with an on-delay timing of 20 to 70 seconds and an off-delay of 20 to 80 seconds, allowing for precise control of the electric furnace sequencer staging. Built to resist shock and vibration, this thermal time delay relay replaces common OEM components from Honeywell, White-Rodgers, and Klixon. Whether you are performing a heat pump blower control repair or managing electric heat sequencer wiring for a commercial unit heater, this component provides the voltage-compensated performance required for professional-grade HVACR maintenance.
Key Benefits- Universal Compatibility: Engineered as a high-performance replacement for Honeywell and Klixon sequencers in residential and commercial furnaces.
- Positive Snap-Action: The internal automatic reset switch mechanism ensures a "clean" make/break action to protect sensitive blower motors and elements.
- Stable PTC Timing: Solid-state dependability provides consistent timing, unaffected by standard ambient temperature fluctuations in the mechanical room.
- Flexible Mounting: Non-positional design allows for quick installation in existing control boards without the need for additional bracket modifications.
Can the MARS 33267 be used to control both the fan and the heating elements?
Yes, in most wiring configurations, the first switch (M1-M2) should be dedicated to the fan circuit to provide an interlock, ensuring the blower stays active until all heating elements have de-energized.
What is the maximum load rating for these contacts?
These contacts are rated for 25A FLA at 240VAC, making them suitable for standard 5kW and 10kW heating element circuits.
How do I know if my sequencer is bad?
If heating elements stay energized after the thermostat is satisfied, or if there is a complete failure of stages to kick on in sequence, the PTC heater or the snap-disc inside the sequencer has likely failed.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
MARS 33267 Sequencer
As a seasoned technician, you know that timed staging is critical for preventing circuit overload and maintaining steady discharge temperatures in electric furnaces and heat pumps. The MARS 33267 Sequencer is a reliable, non-positional field replacement designed for multi-stage heating systems. This 240V 1SPDT 3N/O Sequencer utilizes a solid-state PTC (Positive Temperature Coefficient) heater to ensure stable, snap-action switching. The MARS 33267 features a 1 Form C SPDT contact configuration with an on-delay timing of 20 to 70 seconds and an off-delay of 20 to 80 seconds, allowing for precise control of the electric furnace sequencer staging. Built to resist shock and vibration, this thermal time delay relay replaces common OEM components from Honeywell, White-Rodgers, and Klixon. Whether you are performing a heat pump blower control repair or managing electric heat sequencer wiring for a commercial unit heater, this component provides the voltage-compensated performance required for professional-grade HVACR maintenance.
Key Benefits- Universal Compatibility: Engineered as a high-performance replacement for Honeywell and Klixon sequencers in residential and commercial furnaces.
- Positive Snap-Action: The internal automatic reset switch mechanism ensures a "clean" make/break action to protect sensitive blower motors and elements.
- Stable PTC Timing: Solid-state dependability provides consistent timing, unaffected by standard ambient temperature fluctuations in the mechanical room.
- Flexible Mounting: Non-positional design allows for quick installation in existing control boards without the need for additional bracket modifications.
Can the MARS 33267 be used to control both the fan and the heating elements?
Yes, in most wiring configurations, the first switch (M1-M2) should be dedicated to the fan circuit to provide an interlock, ensuring the blower stays active until all heating elements have de-energized.
What is the maximum load rating for these contacts?
These contacts are rated for 25A FLA at 240VAC, making them suitable for standard 5kW and 10kW heating element circuits.
How do I know if my sequencer is bad?
If heating elements stay energized after the thermostat is satisfied, or if there is a complete failure of stages to kick on in sequence, the PTC heater or the snap-disc inside the sequencer has likely failed.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
As a seasoned technician, you know that timed staging is critical for preventing circuit overload and maintaining steady discharge temperatures in electric furnaces and heat pumps. The MARS 33267 Sequencer is a reliable, non-positional field replacement designed for multi-stage heating systems. This 240V 1SPDT 3N/O Sequencer utilizes a solid-state PTC (Positive Temperature Coefficient) heater to ensure stable, snap-action switching. The MARS 33267 features a 1 Form C SPDT contact configuration with an on-delay timing of 20 to 70 seconds and an off-delay of 20 to 80 seconds, allowing for precise control of the electric furnace sequencer staging. Built to resist shock and vibration, this thermal time delay relay replaces common OEM components from Honeywell, White-Rodgers, and Klixon. Whether you are performing a heat pump blower control repair or managing electric heat sequencer wiring for a commercial unit heater, this component provides the voltage-compensated performance required for professional-grade HVACR maintenance.
Key Benefits- Universal Compatibility: Engineered as a high-performance replacement for Honeywell and Klixon sequencers in residential and commercial furnaces.
- Positive Snap-Action: The internal automatic reset switch mechanism ensures a "clean" make/break action to protect sensitive blower motors and elements.
- Stable PTC Timing: Solid-state dependability provides consistent timing, unaffected by standard ambient temperature fluctuations in the mechanical room.
- Flexible Mounting: Non-positional design allows for quick installation in existing control boards without the need for additional bracket modifications.
Can the MARS 33267 be used to control both the fan and the heating elements?
Yes, in most wiring configurations, the first switch (M1-M2) should be dedicated to the fan circuit to provide an interlock, ensuring the blower stays active until all heating elements have de-energized.
What is the maximum load rating for these contacts?
These contacts are rated for 25A FLA at 240VAC, making them suitable for standard 5kW and 10kW heating element circuits.
How do I know if my sequencer is bad?
If heating elements stay energized after the thermostat is satisfied, or if there is a complete failure of stages to kick on in sequence, the PTC heater or the snap-disc inside the sequencer has likely failed.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
