TXW-86-515-Q(S)

Overview

The TXW-86-515-Q(S) is a thermal switch manufactured by Floyd Bell Inc, designed for overtemperature protection in electrical systems. This component operates as a non-resettable or manually resettable device depending on the specific suffix configuration, utilizing a bimetallic mechanism to interrupt circuit continuity when ambient temperatures exceed a predetermined threshold. The unit is engineered for direct mounting onto heat-generating components such as transformers, motors, and power supplies to ensure safe operating limits are maintained. It features a robust construction suitable for industrial environments, providing reliable thermal cutoff capabilities without requiring external control electronics.

Feature Summary

• Provides precise thermal cutoff protection based on calibrated temperature thresholds
• Utilizes a bimetallic sensing element for rapid and accurate response to overheating conditions
• Designed for direct surface mounting on electronic components and assemblies
• Ensures circuit isolation upon reaching critical temperature limits to prevent damage

Applications

• Transformer overtemperature protection
• Motor winding thermal safety
• Power supply unit thermal cutoff
• Appliance heating element protection

Procurement Notes

Verify the exact thermal rating and reset characteristics against the manufacturer's datasheet before procurement. Confirm that the package style and terminal type match the target assembly requirements. Ensure the selected variant complies with relevant safety certifications required for the end application. Cross-reference the part number suffixes to distinguish between resettable and non-resettable configurations. Validate compatibility with the operating voltage and current ratings of the protected circuit.

Selection Notes

Select this component based on the specific trip temperature required for the protected equipment. Evaluate the physical dimensions and mounting constraints of the installation site. Consider the environmental conditions, including humidity and vibration, to ensure long-term reliability. Compare the thermal mass and response time requirements of the application against the switch's performance specifications. Ensure the electrical ratings meet or exceed the circuit parameters to avoid premature failure.

Part Context

Floyd Bell Inc specializes in thermal protection devices, including thermal switches, fuses, and thermistors. The TXW series represents their line of thermal switches designed for industrial and commercial applications. These components are integral to safety systems in various electrical appliances and industrial machinery, providing essential protection against thermal runaway and component damage due to excessive heat generation.

Replacement Considerations

Direct replacements must match the original thermal rating, package dimensions, and terminal configuration. Verify that any substitute component meets the same safety certification standards as the original part. Check for compatibility with the existing mounting hardware and wiring connections. Ensure the replacement maintains the same electrical isolation properties and current carrying capacity.