Potter THERMOFLEX® CF-EWT Series Explosion Proof Fixed Temperature Heat Detector

Features Low profile design Cast aluminium housing Single circuit with normally open contact configuration Explosion proof weather proof water tight and dust tight Product includes 5 year warranty cast aluminum housing encloses a standard THERMOFLEX heat making it suitable for use in hazardous locations including requiring detectors that are explosion proof water and dust tight suffix EWT denotes a unit that is suitable for areas described as I Groups C and D II Groups E F and G III Applications requiring Special Purpose Enclosure Types IV and V Weatherproof Water tight and Dust tight 4 EWT series meets the requirements of Division 1 location an explosive mixture of gas vapor dust fibers or flyings and may exist under normal operating conditions The EWT cast enclosure is acceptable for locations requiring Weatherproof and Dust tight applications Class II devices require Dust enclosures The EWT enclosure meets NEMA 4 and CSA IV Specifications Weight Housing Ratings 14 cm x 3.6 9.3 cm lbs 800 grams Listed Explosion Proof Water and Tight Amps at 125VAC Amp at 28VDC Amps at 125VDC Amps at 250 VDC 40 250 120 of Operating Temperature with 1 2 hub included PAGE 1 OF 2 B 7 15Potter Electric Signal Company LLC St Louis MO Tech Support 866 956 1211 Customer Service 866 572 3005 www pottersignal comTHERMOFLEX CF CR EWT SeriesConventional Heat Detectorsfirealarmresources com CR 135 EWT THERMOFLEX CR 135EWT is a combination rate of rise and fixed temperature detector in a case aluminum housing suitable for use in the locations described above A set of normally open contacts will close when the ceiling temperature increases at a minimum rate of 15 per minute Closing the contact initiates the direct alarm sequence Independent of the rate of rise operation the fixed temperature portion of a spring loaded plunger retained by a fusible alloy that releases when the ceiling temperature reaches 135 57 When released the strikes the set of contacts and holds them closed Spacing between detectors on an uninterrupted ceiling is 50 ft 15.2m for the rate of rise and ft 9.1m for the fixed temperature portion Distance from any wall or partition is 25 ft 7.5m and 15 ft 4.5m respectively CF 135 EWT THERMOFLEX Model CF 135EWT is a fixed temperature only detector The fixed temperature portion consists of a spring loaded plunger retained by fusible alloy that releases when the ceiling temperature reaches 135 57 When released the plunger strikes a normally open set of contacts and holds closed Spacing on an uninterrupted ceiling is 30 ft 9m The CF 135MP is identified by a black dot on the heat collector fin CR 200 EWT THERMOFLEX Model CR 200EWT is a combination rate of rise and fixed temperature detector that operates in the same way as the CR with the exception that the fixed temperature portion releases when the ceiling temperature reaches 200 93 Spacing on an uninterrupted is 50 ft 15m The CR 200MP is identified by a white dot on the heat collector fin CF 200 EWT Model THERMOFLEX CF 200EWT is a fixed temperature only detector The fixed temperature portion releases when the ceiling temperature 200 93 Spacing is 30 ft 9m The CF 200EWT is identified by a black dot and a white dot on the heat collector fin Specifications detectors shall be installed in areas where corrosive elements exist or washing of walls and ceiling surfaces is commonplace The temperature portion and the rate of rise operation shall be determined by the ambient temperature THERMOFLEX A type detectors shall be in areas where environmental conditions including dust vapors insects etc would cause an ionization or photoelectric type detector to a false alarm EWT enclosure has two openings tapped for rigid conduit The unit is fastened to the ceiling surface by means of two mounting holes that are 5mm in diameter Pigtail leads are provided for connection to the fire alarm initiating circuit and or any auxiliary device After connections are the unit is re assembled using the six machine thread bolts provided The black wires are solder connected internally to one side of the contacts the white wires are connected to the other side in the same way Information Number Fixed Temperature XP Heat Detector Fixed Temperature XP Heat Detector Rate of Rise Fixed Temperature XP Heat Detector Rate of Rise Fixed Temperature XP Heat Detector PAGE 2 OF 2 B 7 15Potter Electric Signal Company LLC St Louis MO Tech Support 866 956 1211 Customer Service 866 572 3005 www pottersignal comTHERMOFLEX CF CR EWT SeriesConventional Heat Detectorsfirealarmresources com