Description
The Markel Products Co. 51135001 is a 24V Fan Time Delay Relay engineered to provide reliable, precise fan sequencing control in HVAC heating and cooling systems. By introducing a controlled time delay between thermostat demand and fan operation, this relay helps protect heat exchangers, improve comfort, and extend equipment life.
Key Features
- 24V operating voltage for compatibility with standard low-voltage HVAC control circuits
- Time delay function sequences fan operation to optimize heating and cooling performance
- Prevents premature fan startup, protecting heat exchangers and improving system efficiency
- Designed for straightforward installation in residential and light commercial HVAC applications
- Durable construction built to Markel Products Co. quality standards
Applications
- Electric furnaces and fan-forced heaters
- Air handlers and blower assemblies
- Residential and light commercial HVAC systems requiring fan delay sequencing
Product Specifications
- Brand: Markel Products Co.
- Part Number: 51135001
- Voltage: 24V
- Type: Fan Time Delay Relay







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