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Table 239: F261 Series fluid flow switches technical specifications Specification Description Switch single-pole, double-throw (SPDT) Enclosure UL: Type 3R or Type 4 CE: IP43 (IP23 with drain hole plug removed) or IP67 Wiring connections Three color-coded screw terminals and one ground terminal Conduit connection One 7/8 in. (22 mm) hole for 1/2 in. trade size (or PG16) conduit Pipe connector Standard: 1 in. 11-1/2 NPT Threads Low-Flow: 1/2 in. x 1/2 in. Female NPTF; 3/4 in. x 3/4 in. Female NPTF Maximum fluid pressure 290 psi (20 bar) Minimum fluid temperature -20°F (-29°C) Note: Ensure that the low liquid temperature combined with the low ambient temperature does not lead to freezing the liquid inside the body or, if applicable, the bellows. Observe the liquid freezing point. Maximum fluid temperature 250°F (121°C) Note: At higher ambient temper- atures, the maximum liquid tem- perature becomes lower. The tem- perature of the electrical switch inside should not exceed 158°F (70°C). Ambient conditions -40°F to 140°F (-40°C to 60°C) Compliance North America: cULus Listed; UL 60730, File E6688; FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits Europe: CE Mark – Johnson Controls declares that this product is in compliance with the essential requirements and other relevant provisions of the EMC Directive and the Low Voltage Directive. Australia/New Zealand: Mark: RCM Compliant The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult Johnson Controls/Penn Refrigeration Application Engineering at 1-800-275-5676. Johnson Controls shall not be liable for damages resulting from misapplication or misuse of its products. 211 Refrigeration Products Catalog

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