Rate Compensation Heat Detectors 302 Series

Rate Compensation Heat Detectors 302 Series

Manufacture: kidde

Product code: 302 Series

Series 302 heat detectors ✔️✅ are designed for use in normal environments as well as environments where the detectors are subject to weather, moisture (internal condensation) ✔️✅ and explosive atmospheres. They are normally-open devices designed to close an electrical circuit upon activation. All models feature rate compensation and are available with either 135
°F (57.2
°C) or 194
°F (90
°C) ratings. They are self restoring, hermetically sealed, shock and corrosion resistant, and are tamperproof.

Product information

Standard Features

• Rate compensation offsets thermal lag

• Self-restoring – no manual reset required

• Explosion proof and weatherproof models available

• Weatherproof models available that do not require a special backbox

• Box mount and surface mount models available

Application

Sensors rated at 135 °F (57.2 °C) will not respond to momentary temperature ﬂuctuations less than 30 °F/minute between 60 °F (16 °C) and 100 °F (38 °C). Sensors rated at 194°F (90 °C) will not respond to momentary temperature ﬂuctuations less than 50 °F/minute between 60 °F (16 °C) and 150 °F (66 °C). 302 Series sensors should not be used in environments where conditions exceed these parameters. Do not install them in hot air ducts, in front of heaters, in paint booths that use heat to cure paint, or any other location subject to temperature ﬂuctuation.

Sensor’s Rated Temperature	Minimum Ambient Air Temperature	Maximum Ceiling Temperature
135 °F (57.2 °C)	-40 °F (-40 °C)	100 °F (38 °C)
194 °F (90 °C)	-40 °F (-40 °C)	150 °F (66 °C)

The sensor's aluminum tube acts as a heat collector when sources of heat radiate directly on the tube. Install these sensors out of direct sunlight and away radiating heat sources including the direct ﬂow heaters and heat ducts.

Detector Spacing

Model	302	302-AW	302-ET	302-EPM
UL- Vertical Spacing (all models)	50' x 50' (15.2 x 15.2 m)	50' x 50' (15.2 x 15.2 m)	50' x 50' (15.2 x 15.2 m)	40' x 40' (12.2 x 12.2 m)
UL- Horizontal Spacing (all models)	40' x 40' (12.2 x 12.2 m)	40' x 40' (12.2 x 12.2 m)	40' x 40' (12.2 x 12.2 m)	30' x 30' (9.1 x 9.1m)
FM - Horizontal or vertical spacing.	30' x 30' (9.1 x 9.1m)	30' x 30' (9.1 x 9.1m)	30' x 30' (9.1 x 9.1m)	Not Listed

Dimensions

Model	ET	EMP
Tube Length	3" (76.2 mm)	3" (76.2 mm)
Tube Diameter	0.5" (12.7 mm)	0.5" (12.7 mm)
NPT Thread	0.5" (12.7 mm)	0.5" (12.7 mm)
Hex Base	1" (25.4 mm) plastic	1.25" (31.75 mm) brass

Ordering Information

Interior applications			Ship Wt
302-135	Heat Detector - Rate Compensation, Interior Vertical Surface Mount FM & UL, 135 °F (57.2 °C)	For interior mounting.	0.2 lb. (0.09 kg)
302-194	Heat Detector - Rate Compensation, Interior Vertical Surface Mount FM & UL, 194°F (90 °C).

Moisture & dust proof applications			Ship Wt.
302-AW-135	All-weather Heat Detector - Rate Compensation, Vertical Mounting FM & UL, 135 °F (57.2 °C)	Hermetically sealed for moisture proof or dust proof installations. Requires no special back box when the all-weather leads are properly spliced to “THW” or equivalent type wire and splices are moisture proof. For indoor or outdoor use.	0.2 lb. (0.09 kg)
302-AW-194	All-weather Heat Detector - Rate Compensation, Vertical Mounting FM & UL, 194°F (90 °C)

Moisture & dust proof applications (box mount)			Ship Wt
302-ET-135	All-weather Heat Detector - Rate Compensation, Vertical, Box Mount (½" NPT), FM & UL, 135 °F (57.2 °C). Requires STONCO27 or equivalent.	Hermetically sealed for moisture proof or dust proof installations. Requires no special back box. Has plastic hexagonal grip bushing with ½" conduit threads for attachment to threaded hub cover, or any outlet box. For indoor or outdoor use when watertight seal is required, use weatherproof box.	0.2 lb. (0.09 kg)
302-ET-194	All-weather Heat Detector - Rate Compensation, Vertical, Box Mount (½" NPT), FM & UL, 194°F (90 °C). Requires STONCO27 or equivalent.

Explosion proof applications			Ship Wt.
302-EPM- 135	Heat Detector - Rate Compensation, Explosionproof Mounting UL (Not FM approved), 135 °F (57.2 °C). RequiresJALX-11 or equivalent	Explosion proof for installation in hazardous locations. Has hexagonal grip bushing with ½" conduit threads for attachment to threaded hub covers of series JL fxture ftting manufactured by Killark Electric Co., or equivalent. Must be hand tightened only. For indoor use only.	0.3 lb. (0.14 kg)
302-EPM- 194	Heat Detector - Rate Compensation, Explosionproof Mounting UL (not FM approved), 194°F (90 °C). RequiresJALX-11 or equivalent

Adapter plate				Ship Wt.
AP-P	Decorative white plastic adaptor plate for mounting 302 and 302-AW to any 3" outlet box or 4" octagon outlet box.			0.1 lb. (0.05 kg)

Outlet body

Use with standard backboxes and covers such as those manufactured by Killark Electric Co., or equivalent.

Explosion proof outlet body			Ship Wt.
JALX11	Explosion proof outlet body with cover (½" thread hubs back, four sides and cover) - Killark		3.5 lb. (1.6 kg)

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