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The general-purpose, screw-cover connection heads listed below are NEMA/IP66 rated for indoor or outdoor use providing protection against dust, rain, splashing and hose-directed water. These Pyromation® design-patented connection heads have easy access, one-turn caps; accept Pyromation® 300 series and DIN terminal blocks and transmitters, and provides greater volume for ease of field wiring. When specified, the Series 31, 34 and 91 are rated for Class I Division II locations.
Unit of Measure

Specifications

Brands

 N/A Pyromation®

Configuration Code

 N/A HB01

Head Options

 N/A Code D2 (Not available with 63 series) - Class I Division II Rated Head Code GS - Internal ground screw Code HS - Security screw Code OR - Buna N O-ring Code PS - Process set screw Code W (Only available on 31 C) - White epoxy coating

Terminal Blocks

 N/A Code 341 -Single terminal block Code 342 - Duplex terminal block Code 343-2 - Triplex terminal block with 2 brass terminals Code 343-3 - Triplex terminal block with 3 brass terminals Code 343-4 - Triplex terminal block with 4 brass terminals Code 343-6 - Triplex terminal block with 6 brass terminals Code 341 - Up to 8 AWGCode 342 - Up to 8 AWGCode 343-2 - Up to 12 AWGCode 343-3 - Up to 12 AWGCode 343-4 - Up to 12 AWGCode 343-6 - Up to 12 AWG

General-Purpose Aluminum

Process Opening Size (Aluminum)

 N/A Code 31A - 1/8 in. National Pipe Thread (NPT) Code 31B - 1/4 in. National Pipe Thread (NPT) Code 31C - 1/2 in. National Pipe Thread (NPT) Code 31D - 3/4 in. National Pipe Thread (NPT) Code 31E - 1 in. National Pipe Thread (NPT) Code 31Q - 3/8 in. National Pipe Thread (NPT)

Conduit Opening Size (Aluminum)

 N/A Code 31A - 3/4 in. National Pipe Thread (NPT) Code 31B - 3/4 in. National Pipe Thread (NPT) Code 31C - 3/4 in. National Pipe Thread (NPT) Code 31D - 3/4 in. National Pipe Thread (NPT) Code 31E - 3/4 in. National Pipe Thread (NPT) Code 31Q - 3/4 in. National Pipe Thread (NPT)

Standard Gasket Material (Aluminum)

 N/A Code 31A - Graphite Code 31B - Graphite Code 31C - Graphite Code 31D - Graphite Code 31E - Graphite Code 31Q - Graphite

General-Purpose 316 Stainless Steel

Process Opening Size (316 Stainless Steel)

 N/A Code 91C - 1/2 in. National Pipe Thread (NPT) Code 91D -3/4 in. National Pipe Thread (NPT)

Conduit Opening Size (316 Stainless Steel)

 N/A Code 91C - 3/4 in. National Pipe Thread (NPT) Code 91D -3/4 in. National Pipe Thread (NPT)

Standard Gasket Material (316 Stainless Steel)

 N/A Code 91C - Graphite Code 91D -Graphite

General-Purpose White Polypropylene

Process Opening Size (White Polypropylene)

 N/A Code 63C - 1/2 in. National Pipe Thread (NPT)

Conduit Opening Size (White Polypropylene)

 N/A Code 63C - 3/4 in. National Pipe Thread (NPT)

Standard Gasket Material (White Polypropylene)

 N/A Code 63C - Buna N O-ring

General-Purpose Cast Iron

Process Opening Size (Cast Iron)

 N/A Code 34C - 1/2 in. National Pipe Thread (NPT) Code 34D - 3/4 in. National Pipe Thread (NPT) Code 34E - 1 in. National Pipe Thread (NPT)

Conduit Opening Size (Cast Iron)

 N/A Code 34C - 3/4 in. National Pipe Thread (NPT) Code 34D - 3/4 in. National Pipe Thread (NPT) Code 34E - 3/4 in. National Pipe Thread (NPT)

Standard Gasket Material (Cast Iron)

 N/A Code 34C - Graphite Code 34D - Graphite Code 34E - Graphite