Honeywell Thermal Solutions FSG L408J1033 Pressure and Limit Controller

Introducing the Honeywell FSG L408J1033 Pressure and Limit Controller, a trusted choice for commercial heating systems. This pressure and limit controller combines adjustable subtractive differential control with a diaphragm-operated sensor to provide precise limit protection from 0 to 4 PSI and a 2–16 oz/in2 differential.

Designed for reliable installation and versatile operation, it features SPST 2-circuit contacts, UL and CSA approvals, and a durable gray finish with a clear plastic cover. The unit supports flexible mounting with a 1/4 inch female threaded connection and can be surface-mounted or threaded into place.

• Type: Adjustable Subtractive Differential
• Operator: Diaphragm
• Operating pressure: 0 to 4 PSI
• Differential: 2 to 16 oz/in2
• Pressure media: Liquid, air, gas
• Contact configuration: SPST, 2 circuits; Auto recycle; Make on pressure rise
• Electrical ratings: 120 VAC: 8 A full load; 48 A locked rotor; 10 A resistive; 240 VAC: 5.1 A full load; 30.6 A locked rotor; 5 A resistive
• Connection: 1/4" female threaded
• Mounting: 1/4" female threaded or surface mount
• Environment: -35 to 150°F; cover is clear plastic; finish in gray
• Approvals: UL, CSA
• Dimensions: 4-1/2" W x 4-1/2" D x 5-1/8" H

Ideal for commercial heating systems requiring automatic limit control, this controller delivers reliable protection, easy installation, and durable operation in a compact package.