BASO L62GB-3 Switch

The BASO L62GB-3 Switch is a heavyweight industrial pilot safety switch engineered for standing pilot systems in commercial space heating and industrial processing equipment. This SPST manual reset device provides 100% lockout (shut-off) of both main and pilot gas flow if the flame is extinguished, ensuring mechanical safety in high-demand environments. Functionally identical to the L62GB-3C and L62GB-3CJ, this unit is a direct universal replacement for the Honeywell C591A and ITT General A100G543. Designed for natural gas and LP applications, the L62GB-3 features a thermoelectric power unit that triggers the interlock. It includes an electric interruption feature, restricting gas flow to the pilot only during the manual lighting cycle. Built to withstand ambient temperatures up to 175°F, this 100% shutoff pilot switch is a standard for technicians requiring a drop-in solution with manual reset reliability for furnaces, boilers, and die-casting machines.

Key Benefits

• 100% Gas Shut-off: Ensures total lockout of both pilot and main burner gas for maximum system safety.
• Universal Field Replacement: Replaces L62GB-3C, Honeywell C591A, and ITT General A100G543 using the included universal mounting plate.
• High Temperature Rating: Rugged construction allows for reliable operation in ambient environments up to 175°F (79°C).
• Interlock Functionality: Integrated electric interruption prevents main burner activation until a stable pilot flame is established.
• Multi-Fuel Compatibility: Verified for use with natural gas, LP, and mixed gas configurations in standing pilot equipment.

Common Questions

What is the difference between the L62GB-3 and the L62GB-3C?
Technically, they are identical in performance and specifications. The "C" suffix typically denotes individual packaging compared to bulk OEM lots, but the locking mechanism and SPST action remain the same.

Can this switch be used in 24V systems?
Yes, while commonly used in 120V/240V pilot duty applications, the BASO L62GB-3 is rated for 24/25 VAC installations, providing versatility across different control voltage requirements.

Does this unit reset automatically?
No, the L62GB-3 is a manual reset safety device. Once a 100% lockout occurs due to flame failure, a technician or operator must manually depress the reset button to restore gas flow.

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.