Honeywell Thermal Solutions FSG L408J1017 Pressure and Limit Controller

The Pressure and Limit Controller from Honeywell Thermal Solutions (model FSG L408J1017) delivers precise automatic limit control for heating systems and commercial applications. This adjustable subtractive differential controller uses a diaphragm operator to ensure reliable response to pressure changes and safe shutdown on limit conditions.

Designed for liquids, air, or gas media, it offers an operating pressure range of 0 to 4 psi and a differential range of 2 to 16 oz/in². The unit features SPDT contacts for two circuits and supports broad electrical ratings, making it a versatile choice for modern controls.

• Type: Adjustable Subtractive Differential
• Operator: Diaphragm
• Media: Liquid, Air, Gas
• Operating Pressure: 0–4 psi
• Differential: 2–16 oz/in²
• Contact Configuration: SPDT, 2 circuits
• Electrical Ratings: 120V AC up to 8A full load; 120V AC 10A resistive; 240V AC up to 5.1A full load; 240V AC 30.6A locked rotor
• Connection & Mounting: 1/4" Female Threaded; surface mount option
• Approvals & Environment: UL, CSA; temperature range -35 to 150°F

Finished in gray with a clear plastic cover, it measures 4-1/2" W x 4-1/2" D x 5-1/8" H and is suitable for commercial automatic limit control and heating system applications.