
Bard HVAC 8402-084BX Limit Switch
The Bard HVAC 8402-084BX Limit Switch is a critical safety component engineered for precision temperature monitoring in Bard wall-mount units and heat pumps. This L130-30 automatic reset limit switch is designed to open the electrical circuit if internal temperatures exceed 130°F and automatically close once the system cools by 30°F, preventing heat exchanger damage and ensuring safe operational cycles. As a direct OEM Bard replacement part, the 8402-084BX serves as the official cross-reference for the legacy S8402-084 model, maintaining the specific thermal response curves required by the original equipment manufacturer. For field technicians, utilizing this HVAC high limit switch ensures a exact physical fit and electrical compatibility with the existing wiring harness, eliminating the risks associated with generic aftermarket controls. Whether you are performing routine maintenance or troubleshooting a furnace that is short-cycling, this Bard L130-30 switch provides the reliability needed for high-duty commercial and schools applications.
Technical Specifications and Benefits:- Factory Calibrated Setpoints: Specifically rated at L130-30 (Opens at 130°F, Closes at 100°F) for accurate thermal protection.
- Direct OEM Cross: Official replacement for Bard S8402-084, ensuring full compliance with factory safety standards.
- Automatic Reset: Eliminates the need for manual intervention after a temporary over-temperature event once the unit reaches safe temperatures.
- Rugged Construction: Built to withstand the high-vibration environment of cabinet-mounted HVAC systems.
- Precise Terminal Alignment: Designed for rapid installation into standard Bard mounting brackets without modification.
Is the Bard 8402-084BX compatible with older S8402-084 units?
Yes, the 8402-084BX is the designated manufacturer replacement for the S8402-084. It maintains the same electrical ratings and thermal trip points required for those systems.
What causes this limit switch to trip frequently?
While the switch is a safety device, frequent tripping usually indicates restricted airflow, such as a clogged filter, a failing blower motor, or obstructed ductwork in the Bard unit.
Can I use a manual reset switch instead of this L130-30 auto reset?
No. You must always match the reset type and temperature specifications of the original part to maintain the safety listing and operational sequence of the HVAC equipment.
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.
Original: $73.55
-65%$73.55
$25.74Bard HVAC 8402-084BX Limit Switch
The Bard HVAC 8402-084BX Limit Switch is a critical safety component engineered for precision temperature monitoring in Bard wall-mount units and heat pumps. This L130-30 automatic reset limit switch is designed to open the electrical circuit if internal temperatures exceed 130°F and automatically close once the system cools by 30°F, preventing heat exchanger damage and ensuring safe operational cycles. As a direct OEM Bard replacement part, the 8402-084BX serves as the official cross-reference for the legacy S8402-084 model, maintaining the specific thermal response curves required by the original equipment manufacturer. For field technicians, utilizing this HVAC high limit switch ensures a exact physical fit and electrical compatibility with the existing wiring harness, eliminating the risks associated with generic aftermarket controls. Whether you are performing routine maintenance or troubleshooting a furnace that is short-cycling, this Bard L130-30 switch provides the reliability needed for high-duty commercial and schools applications.
Technical Specifications and Benefits:- Factory Calibrated Setpoints: Specifically rated at L130-30 (Opens at 130°F, Closes at 100°F) for accurate thermal protection.
- Direct OEM Cross: Official replacement for Bard S8402-084, ensuring full compliance with factory safety standards.
- Automatic Reset: Eliminates the need for manual intervention after a temporary over-temperature event once the unit reaches safe temperatures.
- Rugged Construction: Built to withstand the high-vibration environment of cabinet-mounted HVAC systems.
- Precise Terminal Alignment: Designed for rapid installation into standard Bard mounting brackets without modification.
Is the Bard 8402-084BX compatible with older S8402-084 units?
Yes, the 8402-084BX is the designated manufacturer replacement for the S8402-084. It maintains the same electrical ratings and thermal trip points required for those systems.
What causes this limit switch to trip frequently?
While the switch is a safety device, frequent tripping usually indicates restricted airflow, such as a clogged filter, a failing blower motor, or obstructed ductwork in the Bard unit.
Can I use a manual reset switch instead of this L130-30 auto reset?
No. You must always match the reset type and temperature specifications of the original part to maintain the safety listing and operational sequence of the HVAC equipment.
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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Description
The Bard HVAC 8402-084BX Limit Switch is a critical safety component engineered for precision temperature monitoring in Bard wall-mount units and heat pumps. This L130-30 automatic reset limit switch is designed to open the electrical circuit if internal temperatures exceed 130°F and automatically close once the system cools by 30°F, preventing heat exchanger damage and ensuring safe operational cycles. As a direct OEM Bard replacement part, the 8402-084BX serves as the official cross-reference for the legacy S8402-084 model, maintaining the specific thermal response curves required by the original equipment manufacturer. For field technicians, utilizing this HVAC high limit switch ensures a exact physical fit and electrical compatibility with the existing wiring harness, eliminating the risks associated with generic aftermarket controls. Whether you are performing routine maintenance or troubleshooting a furnace that is short-cycling, this Bard L130-30 switch provides the reliability needed for high-duty commercial and schools applications.
Technical Specifications and Benefits:- Factory Calibrated Setpoints: Specifically rated at L130-30 (Opens at 130°F, Closes at 100°F) for accurate thermal protection.
- Direct OEM Cross: Official replacement for Bard S8402-084, ensuring full compliance with factory safety standards.
- Automatic Reset: Eliminates the need for manual intervention after a temporary over-temperature event once the unit reaches safe temperatures.
- Rugged Construction: Built to withstand the high-vibration environment of cabinet-mounted HVAC systems.
- Precise Terminal Alignment: Designed for rapid installation into standard Bard mounting brackets without modification.
Is the Bard 8402-084BX compatible with older S8402-084 units?
Yes, the 8402-084BX is the designated manufacturer replacement for the S8402-084. It maintains the same electrical ratings and thermal trip points required for those systems.
What causes this limit switch to trip frequently?
While the switch is a safety device, frequent tripping usually indicates restricted airflow, such as a clogged filter, a failing blower motor, or obstructed ductwork in the Bard unit.
Can I use a manual reset switch instead of this L130-30 auto reset?
No. You must always match the reset type and temperature specifications of the original part to maintain the safety listing and operational sequence of the HVAC equipment.
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.












