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FISHER™ CT88

Key Parameters Category Parameter Description / Typical Values Enclosure Enclosure Material Cast Aluminum with Epoxy Powder Coat. Ingress Protection IP66/IP67 (NEMA 4, 4X, 6 equivalent) - Dust-tight and protected against powerful water jets and temporary immersion. Hazardous Area Certifications ATEX, IECEx (Ex d IIC T6 Gb / Ex tb IIIC T80°C Db), CSA (Class I, Div 1 & 2, Groups A, B, C, D). Electrical Electrical Connections Modular terminal block for easy wiring. Conduit Entries Multiple ½" NPT conduit entries. Switch Types Standard: 2 to 4 snap-action switches (SPDT). Optional: Magnetic proximity switches (Reed switches), Hall Effect sensors. Electrical Ratings Typical Switch: 10 A, 250/480 VAC. (Specific ratings depend on the switch type selected). Mechanical Shaft Rotation Standard 90° adjustment (configurable for other angles). Operating Temperature Standard: -40°F to +165°F (-40°C to +74°C). Optional high-temperature version available. Mounting Directly mounts to the actuator using a standardized interface (e.g., Fisher V-Ball, V500/V600 actuator mounts). Indication Position Indicator Mechanical Flag Indicator: Color-coded (Red/Green) for local visual position indication. Optional Features • Potentiometer for analog position feedback. • Heater Kit for cold environments to prevent condensation. • Solenoid valves for integrated control.

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The Fisher™ CT88 is a robust, field-proven limit switch box designed to provide reliable valve position feedback (open, closed, or intermediate status) for quarter-turn actuators, such as those on ball, butterfly, and plug valves. It is a compact, modular unit renowned for its durability in harsh and demanding environments, including hazardous areas.