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302 Series
Features
* Immediate response. The 302 Series activates whenever ambient air temperature reaches a detector's setting,eliminating the thermal time lag inherent in conventional heat detectors. * Eliminates false alarms. The 302 Series do not respond to momentary temperature fluctuations below the selected temperature. * Universal application. The 302 Series can be used in all areas for any type of occupancy. * Self-restoring. * Hermetically sealed, shock resistant, corrosion resistant, and tamper-proff.
Rate-Anticipation Heat Detectors
Description
The Thermotech 302 Series rateanticipation heat detectors operate within a conrolled range of two to three degrees of their set points, regardless of the speed or rate of temperature rise. These detectors are available in either 135 F or 194 F ratings. The 302 Series are normally-open devices designed especially for fire detection and alarm systems.
The 302 Series rate-anticipation heat detectors respond and activate the fire alarm immediately whenever the ambient temperature reaches the preset temperature setting. Under rapid heat rise conditions, the rate-anticipation feature enables the detector to respond one to three degrees ahead of the setting. At the same time, however, it does not respond to momentary temperature flucuations below the selected protection level, thus eliminating false alarms. When temperature drops back down below the protection level, the detector automatically resets itself.
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Principles of Operation Listings
Listings and approvals below apply to the 302 Series M Rate-Anticipation Heat Detectors. In some cases, certain modules may not be listed by certain approval agencies, or listing may be in process. Consult factory for latest listing status. * UL Listed: file S539 & E35018A. * CSFM approved: file 7270-0021:001. * FM approved: file
Application Information
302 Series detectors have a smooth-ceiling UL rating of 50' x 50' (15.24 x 15.24 meters) and are the only type of heat detectors having such a rating on both fixed temperature and rate anticipation.
302 Series CS-2519
09/01/06
Page 1 of 2
Product Line Information
302-135: 135F Interior Vertical Mounting, FM and UL (See Note 1). 302-194: 194F Interior Vertical Mounting, FM and UL (See Note 1). 302-AW-135:135F All-Weather Vertical Mounting, FM and UL (See Note 2). 302-AW-194: 194F All-Weather Vertical Mounting, FM and UL (See Note 2). 302-ET-135:135F All-Weather Vertical Mounting, FM and UL (See Note 3). 302-ET-194: 194F All-Weather Vertical Mounting, FM and UL (See Note 3). 302-EPM-135: 135F Explosion-Proof Mounting, UL (See Note 4). 302-EPM-194: 194F Explosion Proof Mounting, UL (See Note 4). AP-P: Decorative white plastic adaptor plate for mounting 302 and 302-AM to 4" outlet box. Note 1: For interior mounting in any atmosphere that is compatible with terminal screw type connections. UL rating 50' x 50' (15.24 x 15.24 meters). Note 2: Humitically sealed for moisture-proof or dust-proof installations. Requires no special backbox when the all-weather leads are properly spliced to 'THW' or equivalent type wire. Note 3: Humitically sealed for moisture-proof or dust-proof installations. Requires no special backbox. Has plastic hexagonal wrench grip bushing with 1/2" (1.27 cm) conduit threads for attachment to threaded hub cover, or any special outlet box. Note 4: Explosion-proof for installation in hazardous locations. Has hexagonal wrench grip bushing with 1/2" (1.27 cm) conduit threads for attachment to threaded hub cover of Series JL fixture fitting as manufactured by Killark Electric Co., or equal.
Specifications
Dimensions Total overall length: 4-1/8" Base diameter: 2" Electrical Ratings Voltage 6-125 VAC 6-25 VDC 125 VDC Current 5 amps 1 amp 0.5 amp
Cut-Away View
FINE SILVER CONTACT POINTS EXPANSION STRUTS HIGH EXPANSION SENSING SHELL 0.040 ANODIZED ALUMINUM HEAT ANTICIPATION CONTROL SLEEVE SETTING SCREW
Gamewell-FCI 12 Clintonville Road Northford, CT 06472-1610 Phone: 203-484-7161 Fax: 203-484-7118 www.gamewell-fci.com A Honeywell Company (c) 2006 Gamewell-FCI
DEVCON HERMETIC SEAL
Specifications and wiring information are provided for information only and are believed to be accurate. Gamewell-FCI assumes no responsibility for their use. Data and design are subject to change without notice. Installation and wiring instructions shipped with the product shall always be used for actual installation. For more information, contact Gamewell-FCI.
Page 2 of 2 302 Series CS-2519 09/01/06

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