Johnson Controls A11B-1C Temperature Control

The Johnson Controls A11B-1C Temperature Control delivers precise cooling management for commercial refrigeration and HVAC systems. Featuring a 240" bulb and a 48" capillary, it maintains a fixed differential across a tight 35 to 45 Deg F range for reliable temperature control. With a maximum temperature rating of 250 Deg F and a 24 to 277 Volt AC contact range, this unit is built to perform in demanding environments. The SPST contact configuration simplifies wiring for cooling coils and liquid-handling pipes, while the gray baked enamel enclosure on cold-rolled steel provides sturdy NEMA 1 protection. It is UL, CSA, and FCC approved for trusted, industry-standard performance.

• Primary application: Cooling coils and liquid-handling pipes
• Temperature range: 35–45°F
• Bulb/Capillary: 240" bulb with 48" capillary
• Differential: Fixed
• Electrical: SPST contact, 24–277 VAC
• Enclosure: Gray baked enamel on cold-rolled steel, NEMA 1
• Max temperature rating: 250°F
• Approvals: UL, CSA, FCC