
Markel 28163005 Relay
The Markel 28163005 Relay is a heavy-duty high-power HVAC time delay relay designed for precise sequencing in residential and industrial heating systems. Rated for up to 2.3kW (2300W) at 240V, this SPST sequencer relay is a critical component for managing lead-lag operations, fan delays, and multi-stage heating cycles. It is specifically engineered for full compatibility with Markel, TPI Corporation, and Raywall equipment, including high-demand models like the F30522T2DWB and H30522T2DWB series units.
As a veteran-grade HVAC sequencer replacement, the 28163005 prevents electrical spiking and reduces inrush current stress by introducing a controlled delay before the fan motor or second-stage heating engages. This electronic time delay switch ensures that heat exchangers reach optimal temperatures before airflow begins, maximizing system efficiency and preventing cold drafts. Its robust design, weighing approximately 0.13 lbs, makes it an ideal OEM control relay for maintaining the operational integrity of 3000W to 10000W cabinet heaters and baseboard units where reliable timing circuit control is non-negotiable.
Key Benefits- Optimized Power Management: Rated for 2.3kW to handle high-wattage heating elements without premature contact failure.
- Universal Compatibility: Direct drop-in replacement for TPI and Markel units, including Grainger cross-reference items 31TR44 and G8233845.
- System Protection: Actively minimizes electrical spikes and equipment fatigue by sequencing fan and heater startup.
- Improved Efficiency: Eliminates rapid cycling and ensures consistent thermal discharge for better environmental control.
What is the primary function of the 28163005 relay?
It functions as a time delay switch that holds the fan or secondary heating stage until a specific thermal or timing threshold is met, preventing system shock and cold air delivery.
Can I use this for 120V applications?
This specific model is optimized for 240V/2.3kW circuits typical in electric wall and cabinet heaters; verify your control voltage and load requirements before installation.
Does it support multi-brand equipment?
Yes, it is the standard OEM replacement for Markel Products, TPI, and Raywall equipment using this standard time-delay configuration.
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.
Markel 28163005 Relay
The Markel 28163005 Relay is a heavy-duty high-power HVAC time delay relay designed for precise sequencing in residential and industrial heating systems. Rated for up to 2.3kW (2300W) at 240V, this SPST sequencer relay is a critical component for managing lead-lag operations, fan delays, and multi-stage heating cycles. It is specifically engineered for full compatibility with Markel, TPI Corporation, and Raywall equipment, including high-demand models like the F30522T2DWB and H30522T2DWB series units.
As a veteran-grade HVAC sequencer replacement, the 28163005 prevents electrical spiking and reduces inrush current stress by introducing a controlled delay before the fan motor or second-stage heating engages. This electronic time delay switch ensures that heat exchangers reach optimal temperatures before airflow begins, maximizing system efficiency and preventing cold drafts. Its robust design, weighing approximately 0.13 lbs, makes it an ideal OEM control relay for maintaining the operational integrity of 3000W to 10000W cabinet heaters and baseboard units where reliable timing circuit control is non-negotiable.
Key Benefits- Optimized Power Management: Rated for 2.3kW to handle high-wattage heating elements without premature contact failure.
- Universal Compatibility: Direct drop-in replacement for TPI and Markel units, including Grainger cross-reference items 31TR44 and G8233845.
- System Protection: Actively minimizes electrical spikes and equipment fatigue by sequencing fan and heater startup.
- Improved Efficiency: Eliminates rapid cycling and ensures consistent thermal discharge for better environmental control.
What is the primary function of the 28163005 relay?
It functions as a time delay switch that holds the fan or secondary heating stage until a specific thermal or timing threshold is met, preventing system shock and cold air delivery.
Can I use this for 120V applications?
This specific model is optimized for 240V/2.3kW circuits typical in electric wall and cabinet heaters; verify your control voltage and load requirements before installation.
Does it support multi-brand equipment?
Yes, it is the standard OEM replacement for Markel Products, TPI, and Raywall equipment using this standard time-delay configuration.
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.
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Product Information
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Description
The Markel 28163005 Relay is a heavy-duty high-power HVAC time delay relay designed for precise sequencing in residential and industrial heating systems. Rated for up to 2.3kW (2300W) at 240V, this SPST sequencer relay is a critical component for managing lead-lag operations, fan delays, and multi-stage heating cycles. It is specifically engineered for full compatibility with Markel, TPI Corporation, and Raywall equipment, including high-demand models like the F30522T2DWB and H30522T2DWB series units.
As a veteran-grade HVAC sequencer replacement, the 28163005 prevents electrical spiking and reduces inrush current stress by introducing a controlled delay before the fan motor or second-stage heating engages. This electronic time delay switch ensures that heat exchangers reach optimal temperatures before airflow begins, maximizing system efficiency and preventing cold drafts. Its robust design, weighing approximately 0.13 lbs, makes it an ideal OEM control relay for maintaining the operational integrity of 3000W to 10000W cabinet heaters and baseboard units where reliable timing circuit control is non-negotiable.
Key Benefits- Optimized Power Management: Rated for 2.3kW to handle high-wattage heating elements without premature contact failure.
- Universal Compatibility: Direct drop-in replacement for TPI and Markel units, including Grainger cross-reference items 31TR44 and G8233845.
- System Protection: Actively minimizes electrical spikes and equipment fatigue by sequencing fan and heater startup.
- Improved Efficiency: Eliminates rapid cycling and ensures consistent thermal discharge for better environmental control.
What is the primary function of the 28163005 relay?
It functions as a time delay switch that holds the fan or secondary heating stage until a specific thermal or timing threshold is met, preventing system shock and cold air delivery.
Can I use this for 120V applications?
This specific model is optimized for 240V/2.3kW circuits typical in electric wall and cabinet heaters; verify your control voltage and load requirements before installation.
Does it support multi-brand equipment?
Yes, it is the standard OEM replacement for Markel Products, TPI, and Raywall equipment using this standard time-delay configuration.
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.











