Description
The Bard HVAC 8402-123BX is an OEM replacement 3″ insertion limit switch designed to protect HVAC heating systems from unsafe operating temperatures. Identified by the L180-30 designation, this limit switch is engineered to open at 180°F and features a 30°F differential, making it a precision safety control component for furnaces and air handlers.
Product Overview
Limit switches are critical safety devices in HVAC heating systems. When supply air or heat exchanger temperatures exceed safe thresholds, the limit switch interrupts the burner circuit to prevent equipment damage, heat exchanger failure, or fire hazard. The Bard HVAC 8402-123BX is a direct OEM replacement part, ensuring proper fit and function in compatible Bard equipment.
Key Features
- 3″ insertion depth for accurate temperature sensing within the airstream or heat exchanger
- L180-30 designation — opens at 180°F with a 30°F differential
- OEM Bard HVAC replacement part for reliable, like-for-like performance
- Designed to interrupt burner or heating element operation upon high-temperature detection
- Helps prevent heat exchanger damage, equipment failure, and fire hazard
- Compatible with select Bard HVAC wall-mount and packaged HVAC units
Specifications
- SKU: 8402-123BX
- Brand: Bard HVAC
- Type: Insertion Limit Switch
- Insertion Depth: 3″
- Limit Designation: L180-30
- Open Temperature: 180°F
- Differential: 30°F
Application
This limit switch is intended for use in Bard HVAC systems requiring OEM-spec high-temperature protection. Always verify compatibility with your specific Bard unit model before installation. Consult the equipment service manual or a qualified HVAC technician for proper installation and setup.
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