BASO L62AA-5 Pilot Safety Switch

The BASO L62AA-5 is a professional-grade Pilot Safety Switch designed for non-100% shutoff in gas-fired standing pilot systems. Engineered for reliability in HVAC/R applications, this manual reset switch monitors the pilot flame via a thermocouple. If the flame is extinguished, the SPST switch immediately interrupts the electrical circuit to the main burner valve, preventing hazardous gas buildup while allowing the pilot gas to continue flowing. It features electric interruption logic, ensuring that the main valve circuit remains open during the lighting cycle until a robust pilot flame is established. With a rugged SPST contact rated for 1/4 HP at 125/250 VAC, the BASO L62AA-5 is a standard-issue component for domestic central heating, commercial space heaters, and industrial equipment like die-casting machines. Its aluminum construction and 150°F maximum ambient temperature rating ensure stable performance in demanding mechanical rooms. This gas pilot safety control is a critical interlock for maintaining system integrity and operational safety across natural gas installations.

• Enhanced System Safety: Provides immediate main burner shutoff via thermo-electric monitoring if the pilot flame fails.
• Electric Interruption Logic: Prevents main burner ignition during the lighting phase, specifically allowing only pilot gas flow until the manual reset is engaged.
• Broad Compatibility: Universally applicable for various gas-fired standing pilot equipment, including furnaces, boilers, and industrial processing units.
• Durable Construction: Built with high-grade materials to withstand ambient temperatures up to 150°F (66°C), suitable for HVAC/R environments.
• Reliable Switching: Features SPST (Single-Pole Single-Throw) action capable of handling motor loads up to 1/4 HP.

What is the difference between a 100% and non-100% shutoff switch?
The BASO L62AA-5 is a non-100% shutoff model, meaning it interrupts gas flow to the main burner only. In the event of flame loss, pilot gas will continue to flow until it is manually secured.

Does this switch require a specific thermocouple?
Yes, this safety switch requires a standard thermocouple to generate the millivoltage needed to hold the internal power unit. Ensure your thermocouple is properly seated and generating the required millivolt output for the L62 series.

Can I use this for 24V control circuits?
Technically, yes. The BASO L62AA-5 contacts are rated for 24/25 VAC installations as well as line voltage (120/240 VAC) applications, providing versatility for various control configurations.

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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.