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Pyromation’s general-purpose, screw-cover connection heads are NEMA/IP66 rated for indoor or outdoor use providing protection against dust, rain, splashing and hose-directed water. These company design-patented thermocouple and RTD connection heads have easy access, one-turn caps, accept Pyromation 300 series and DIN terminal blocks and transmitters, and provide greater volume for ease of field wiring. When specified, the Series 31, 34 and 91 are rated for NEC Class I Division II locations. See the catalog for additional head descriptions and complete specifications.
The explosion/flame-proof connection heads listed below are designed for use in hazardous locations. These heads meet NEC Class I Division I and specific ATEX and IECeX approvals. Please refer to page AC-7 for descriptions, specifications and ratings for each head. See the &Overview of NEC Hazardous Location Classifications and Methods of Protection& table in the Explosion-Proof (XP) Sensors section of the Pyromation catalog for complete definitions of ratings.
The 49 series flip-top aluminum connection heads listed below meet NEMA 4 requirements for indoor or outdoor applications. The 49 series flip-top aluminum heads utilize an EPDM O-ring seal with a maximum temperature rating of 400 ºF. The flip cover provides easy access to the terminals for wiring or maintenance. These connection heads accept the Pyromation 340 series terminal blocks, 400 series transmitters, and DIN Form B blocks and transmitters.
The miniature nickel-plated connection heads listed below are for indoor or outdoor non-hazardous locations. They provide some degree of protection from dust, rain, and splashing water. The heads come standard with an O-ring moisture seal where the cap connects to the body, and a rubber grommet where the wire exits the cap. The nickel plating provides good corrosion protection. The 362 series connection heads are available with 1/8& NPT or 1/4& NPT process connections, along with 2-, 3-, or 4-terminal configurations.
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