Bard 8402-081 Limit Switch
The Bard 8402-081 Limit Switch is a critical safety component designed for precise thermal regulation within Bard wall-mount heat pumps and air conditioning units. This L130-25F manual reset limit switch is engineered to interrupt the electrical circuit when internal plenum temperatures reach the 130°F cutout threshold, preventing heat exchanger damage and ensuring system integrity. With a 25°F fixed differential, this HVAC high limit sensor provides reliable snap-action switching under demanding operational cycles. As a genuine Bard replacement part, the 8402-081 ensures exact fitment and electrical compatibility, eliminating the mounting issues often associated with universal alternatives. Technicians should verify the L130-25F temperature rating against the specific furnace or air handler data plate to maintain the original safety certification of the equipment. This Bard 8402-081 thermostat limit is essential for resolving unit lockouts and maintaining the sequence of operation in telecommunications and modular building HVAC systems.
- Precise Thermal Protection: Calibrated to trigger at 130°F to protect against overheating in restricted airflow conditions.
- Direct OEM Replacement: Ensures seamless integration with existing wiring harnesses and mounting footprints in Bard units.
- Durable Construction: Built to withstand the high-cycle demands of commercial and industrial environmental control systems.
- Safety Compliance: Restores factory-specified safety parameters to the heating circuit after a primary limit failure.
Common Questions
What causes a Bard 8402-081 limit switch to trip? Typically, a trip is caused by restricted airflow, such as a clogged filter, a failing blower motor, or obstructed ductwork, causing the plenum temperature to exceed 130°F.
Is the Bard 8402-081 a manual or automatic reset switch? This specific model is a manual reset switch, requiring a technician to physically inspect the system and reset the button once the cause of the overheat condition is resolved.
How do I test the L130-25F limit switch? Using a multimeter set to ohms, check for continuity across the terminals. If the switch is cool and shows an open circuit, the internal bimetal disc has failed or is locked in the tripped position.
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: $19.92
-65%$19.92
$6.97Bard 8402-081 Limit Switch
The Bard 8402-081 Limit Switch is a critical safety component designed for precise thermal regulation within Bard wall-mount heat pumps and air conditioning units. This L130-25F manual reset limit switch is engineered to interrupt the electrical circuit when internal plenum temperatures reach the 130°F cutout threshold, preventing heat exchanger damage and ensuring system integrity. With a 25°F fixed differential, this HVAC high limit sensor provides reliable snap-action switching under demanding operational cycles. As a genuine Bard replacement part, the 8402-081 ensures exact fitment and electrical compatibility, eliminating the mounting issues often associated with universal alternatives. Technicians should verify the L130-25F temperature rating against the specific furnace or air handler data plate to maintain the original safety certification of the equipment. This Bard 8402-081 thermostat limit is essential for resolving unit lockouts and maintaining the sequence of operation in telecommunications and modular building HVAC systems.
- Precise Thermal Protection: Calibrated to trigger at 130°F to protect against overheating in restricted airflow conditions.
- Direct OEM Replacement: Ensures seamless integration with existing wiring harnesses and mounting footprints in Bard units.
- Durable Construction: Built to withstand the high-cycle demands of commercial and industrial environmental control systems.
- Safety Compliance: Restores factory-specified safety parameters to the heating circuit after a primary limit failure.
Common Questions
What causes a Bard 8402-081 limit switch to trip? Typically, a trip is caused by restricted airflow, such as a clogged filter, a failing blower motor, or obstructed ductwork, causing the plenum temperature to exceed 130°F.
Is the Bard 8402-081 a manual or automatic reset switch? This specific model is a manual reset switch, requiring a technician to physically inspect the system and reset the button once the cause of the overheat condition is resolved.
How do I test the L130-25F limit switch? Using a multimeter set to ohms, check for continuity across the terminals. If the switch is cool and shows an open circuit, the internal bimetal disc has failed or is locked in the tripped position.
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
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Shipping & Returns
Description
The Bard 8402-081 Limit Switch is a critical safety component designed for precise thermal regulation within Bard wall-mount heat pumps and air conditioning units. This L130-25F manual reset limit switch is engineered to interrupt the electrical circuit when internal plenum temperatures reach the 130°F cutout threshold, preventing heat exchanger damage and ensuring system integrity. With a 25°F fixed differential, this HVAC high limit sensor provides reliable snap-action switching under demanding operational cycles. As a genuine Bard replacement part, the 8402-081 ensures exact fitment and electrical compatibility, eliminating the mounting issues often associated with universal alternatives. Technicians should verify the L130-25F temperature rating against the specific furnace or air handler data plate to maintain the original safety certification of the equipment. This Bard 8402-081 thermostat limit is essential for resolving unit lockouts and maintaining the sequence of operation in telecommunications and modular building HVAC systems.
- Precise Thermal Protection: Calibrated to trigger at 130°F to protect against overheating in restricted airflow conditions.
- Direct OEM Replacement: Ensures seamless integration with existing wiring harnesses and mounting footprints in Bard units.
- Durable Construction: Built to withstand the high-cycle demands of commercial and industrial environmental control systems.
- Safety Compliance: Restores factory-specified safety parameters to the heating circuit after a primary limit failure.
Common Questions
What causes a Bard 8402-081 limit switch to trip? Typically, a trip is caused by restricted airflow, such as a clogged filter, a failing blower motor, or obstructed ductwork, causing the plenum temperature to exceed 130°F.
Is the Bard 8402-081 a manual or automatic reset switch? This specific model is a manual reset switch, requiring a technician to physically inspect the system and reset the button once the cause of the overheat condition is resolved.
How do I test the L130-25F limit switch? Using a multimeter set to ohms, check for continuity across the terminals. If the switch is cool and shows an open circuit, the internal bimetal disc has failed or is locked in the tripped position.
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.
