The BT29 Round Overload Protector Series is a critical safety component designed to provide robust thermal and current protection for refrigerator and freezer compressors. This "round-style" protector is specifically engineered to mount directly onto the compressor terminal pins, acting as a failsafe that disconnects power if the motor draws excessive current or reaches dangerous temperatures.
Available in a range of Horsepower (HP) ratings, these protectors are the industry standard for restoring the safety and functionality of domestic cooling appliances.
Reliable Bimetallic Protection: Features a high-precision internal disc that trips instantly to prevent compressor burnout during stalls or electrical spikes.
BT29 Round Form Factor: Designed for easy fitment in standard compressor terminal covers with a compact, space-saving circular design.
Universal Rating Options: Precisely calibrated for specific motor sizes to ensure accurate tripping:
1/3HP, 1/4HP, 1/5HP, and 1/6HP.
Reinforced Wiring: Comes pre-fitted with a high-temperature insulated lead wire and standard female spade connector for a secure electrical interface.
Stable 220V Operation: Fully optimized for 220V–240V AC power systems (50/60Hz), ideal for global appliance standards.
Auto-Reset Logic: Automatically restores the circuit once the compressor has cooled down to a safe operating threshold.
Shape: Round.
Voltage: 220V AC.
Frequency: 50/60Hz.
Available Power Ratings: 1/3HP, 1/4HP, 1/5HP, 1/6HP.
Connection: Plug-on terminal with insulated lead wire.
Compressor Troubleshooting: The primary replacement part for refrigerators that "click" but fail to start.
Domestic Appliance Repair: Suitable for top-mount fridges, bottom-freezers, and compact wine chillers.
Water Dispensers: Protects the small-scale compressors used in home and office water cooling units.
Preventative Maintenance: Essential for protecting expensive compressors from power fluctuations and grid instability.
How do I choose the right HP? Always check the label on your existing compressor. Using a BT29 protector with a higher HP rating than your compressor (e.g., using a 1/3HP protector on a 1/6HP motor) is dangerous, as it may not trip in time to prevent the motor from catching fire.
When should I replace this part? If your fridge compressor is hot to the touch but not running, or if you hear a repetitive clicking sound coming from the back of the unit, the overload protector has likely reached the end of its service life or is protecting a stalled motor.
Installation Note: Ensure the power is disconnected before replacement. The round protector simply pushes onto the common pin of the compressor.
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