SPD T2 4P 40kA TT/TNS ind.+contact

This component functions as a thermal cutoff switch within electrical systems. It is designed to interrupt the circuit when temperatures exceed its rated threshold, thereby preventing overheating and potential damage to connected equipment. ### Specifications & Ratings Operating Temperature: Fixed activation point based on factory calibration, typically in the range specified by the product code. Not adjustable during installation. Voltage Range: Rated for low-voltage applications—ensure compatibility with supply voltage before integration into main system circuits. Material Composition: Housing constructed from heat-resistant polymer or ceramic insulation; internal contacts are precision-machined metal alloys optimized for high responsiveness under temperature fluctuations. ### Installation & System Compatibility Mounting Type: Snap-fit or screw-in mount surfaces depending on enclosures used. Check alignment tolerance with mating device prior to installation—misalignment can reduce effectiveness of cutoff function. Wiring Interface: Standard leads pre-attached, configured for direct connection to control boards or terminal blocks without additional connectors required; however, stranded wires may need crimp terminals separately sourced if higher rigidity needed in routing setups. ### Technical Notes / Limitations: - Maximum ambient temperature must not exceed 20% below rated cutoff value for reliable performance over time. - Designed primarily for indoor environments; exposure risks include moisture damage and corrosion under prolonged outdoor use conditions. - Does not support variable bypass options once triggered — full reset requires circuit power-down and manual replacement. - Recommended testing frequency: Quarterly assessments in industrial systems with sustained load cycles to verify function accuracy. - Threshold drift possible after 10+ years due to thermal fatigue within internal components — replacement advised at scheduled intervals regardless of condition checks.