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  • Die-Cast Aluminum Flip-Top Connection Heads
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 head 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.
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Item #

Item Name

Configuration Code

Process Opening Size (Aluminum)

Conduit Opening Size

Standard Gasket Material (Aluminum)

N/A 1/2 Inch (in) National Pipe Thread (NPT) Process Opening, Single terminal block Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 1/2 in. National Pipe Thread (NPT) 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 1/2 Inch (in) National Pipe Thread (NPT) Process Opening, Duplex terminal block Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 1/2 in. National Pipe Thread (NPT) 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 1/2 Inch (in) National Pipe Thread (NPT) Process Opening, Triplex terminal block with 2 brass terminals Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 1/2 in. National Pipe Thread (NPT) 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 1/2 Inch (in) National Pipe Thread (NPT) Process Opening, Triplex terminal block with 3 brass terminals Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 1/2 in. National Pipe Thread (NPT) 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 1/2 Inch (in) National Pipe Thread (NPT) Process Opening, Triplex terminal block with 4 brass terminals Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 1/2 in. National Pipe Thread (NPT) 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 1/2 Inch (in) National Pipe Thread (NPT) Process Opening, Triplex terminal block with 6 brass terminals Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 1/2 in. National Pipe Thread (NPT) 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 3/4 Inch (in) National Pipe Thread (NPT) Process Opening, Single terminal block Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 3/4 Inch (in) National Pipe Thread (NPT) Process Opening, Duplex terminal block Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 3/4 Inch (in) National Pipe Thread (NPT) Process Opening, Triplex terminal block with 2 brass terminals Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 3/4 Inch (in) National Pipe Thread (NPT) Process Opening, Triplex terminal block with 3 brass terminals Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 3/4 Inch (in) National Pipe Thread (NPT) Process Opening, Triplex terminal block with 4 brass terminals Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
N/A 3/4 Inch (in) National Pipe Thread (NPT) Process Opening, Triplex terminal block with 6 brass terminals Die-Cast Aluminum Flip-Top Connection Head N/A HB01 N/A 3/4 in. National Pipe Thread (NPT) N/A 3/4 in. National Pipe Thread (NPT) N/A EPDM O-ring
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