Spot Heat Detectors- 302 Series Rate Anticipation

All 302 Series detectors are normally open devices and are available in either 135°F (57°C) or 194°F (90°C) ratings. Each unit is constructed with a high expansion .040 anodized aluminum sensing shell and fine silver contacts which are hermetically sealed to ensure reliable operation. Electrical rating is 6-28 VDC, 1 amp. (all models). Refer to product data sheet for FM approval and spacing information.

302-135
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302-135

Interior, vertical mounting, fixed temperature 135°F, maximum spacing is UL 50′ x 50′

302-194
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302-194

Interior, vertical mounting, fixed temperature 194°F, maximum spacing is UL 50′ x 50′

302-ET-135
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302-ET-135

All weather, 1/2″ threaded, vertical mounting, fixed temperature 135°F, maximum spacing is UL 50′ x 50′

302-ET-194
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302-ET-194

All weather, 1/2″ threaded, vertical mounting, fixed temperature 194°F, maximum spacing is UL 50′ x 50′

302-AW-135
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302-AW-135

Moisture and dust-proof, vertical mounting, fixed temperature 135°F, maximum spacing is UL 50′ x 50′

302-AW-194
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302-AW-194

Moisture and dust-proof, vertical mounting, fixed temperature 194°F, maximum spacing is UL 50′ x 50′

302-EPM-135
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302-EPM-135

Explosion-proof screw base, vertical mounting, fixed temperature 135°F, maximum spacing is UL 40′ x 40′

302-EPM-194
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302-EPM-194

Explosion-proof screw base, vertical mounting, fixed temperature 194°F, maximum spacing is UL 40′ x 40′

AP-P
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AP-P

Adapter plate for 4″ box, used with 302, 302-ET, and 302-AW

Documents
Datasheets
Applications in Action
Transportation
"Protectowire Linear Heat Detectors provide a rugged and versatile proximity fire detection option for the transportation industry. With a resistance to a variety of automotive fluids, solvents, and environmental elements, as well as a flexible design, Protectowire is an ideal choice for tight spaces and extended runs. The detector is both vibration and abrasion-resistant which allows it to be placed inside engine compartments. A long service life and easy annual testing means there is minimal downtime or disruptions. Our vast experience across a wide range of applications is why Protectowire is the preferred choice for smart transportation companies."
Applications in Action
Mining & Materials Processing
"When it comes to the complexities and hazardous requirements of the mining and material processing industries, few companies can match Protectowire’s knowledge and experience. With our unique product line and decades of successful installations, Protectowire Linear Heat Detection is the smart choice for production intensive operations associated with these industries."
Applications in Action
Warehousing & Cold Storage
"In rack protection and cold storage warehouses with sub-zero storage, temperatures are a few of the challenges found in the warehouse and storage industries. Protectowire Linear Heat Detectors offer innovative specialty products, single-source capabilities, and a total system solution to solve the fire detection challenges associated with this industry."
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