Connection Heads

JMS-SE offers a wide range of connection heads for protecting a transmitter or terminal block. These connection heads offer a safe and protected location for sensitive electronics and extension wire connections. JMS-SE offers many different types and styles including weather/dust proof, explosion proof, NEMA rated, and many more. Our most common connection heads are shown below. If you need something a little different, just let us know. We can help!

	6L General purpose aluminum head with hinged cover 1/2" x 1/2" connection (Standard). NEMA 4 compliant 150°C (302°F) max temp, resists corrosion, dust, & moisture.	6L Dimensional Drawing 6L Assembly Cut Sheet Add to Cart
	6M General purpose aluminum head with cap and chain, 1/2" x 3/4" connection. NEMA 4 compliant, resistant to corrosion, dust & moisture.	6M Dimensional Drawing 6M Assembly Cut Sheet
	6N General purpose cast iron head. with cap and chain, 1/2" x 3/4" connection. NEMA 4 compliant, resistant to corrosion, dust & moisture.	6N Dimensional Drawing 6N Assembly Cut Sheet
	6SS General purpose 316L stainless steel head with cap and chain, 1/2" x 3/4" connection. NEMA 4X compliant, resistant to corrosion, dust, & moisture.	6SS Dimensional Drawing 6SS Assembly Cut Sheet
	6I Explosion proof cast iron head 3/4" x 3/4" connection with aluminum cover. NEMA 3 & 4 rated. UL + CSA explosion proof rated for class 1, 2, & 3 groups B through G.	6I Dimensional Drawing UL Conformance Certificate CSA Conformance Certificate 6I Assembly Cut Sheet
	6IA Explosion proof aluminum head 1/2" x 3/4" connection. NEMA 4X, IP 66, FM + CSA explosion proof rated for class 1, 2, & 3 groups B though G.	6IA Dimensional Drawing FM Conformance Certificate CSA Conformance Certificate 6IA Assembly Cut Sheet
	6IAIEC Explosion proof aluminum head 1/2" x 3/4" connection. NEMA 4X, IP66, FM, CSA, ATEX + IECEx class 1, 2, & 3, groups B through G. IECEx SIR 09.0006U.	6IAIEC Dimensional Drawing FM Conformance Certificate CSA Conformance Certificate ATEX Conformance Certificate IECEx Conformance Certificate 6IAIEC Assembly Cut Sheet
	6ISS Explosion proof 316 stainless steel head 1/2" x 3/4" connection. NEMA 4X, IP 66, FM + CSA explosion proof rated for class 1, 2, & 3 groups B though G. Temperature range -50 to 125°C (-58 to 257°F). 6ISSATEX Same as 6ISS (above) except with ATEX explosion proof certification.	6ISS Dimensional Drawing FM Conformance Certificate CSA Conformance Certificate 6ISSATEX Dimensional Drawing ATEX Conformance Certificate 6ISSATEX Assembly Cut Sheet 6ISS Assembly Cut Sheet
	6R High dome, general purpose head with hinged cover, 1/2" x 1/2" connection.	6R Dimensional Drawing 6R Assembly Cut Sheet
	6WP White plastic screw top head (polypropylene) 1/2" x 3/4" connection. 198°F (92.2°C) max temperature.	6WP Dimensional Drawing 6WP Assembly Cut Sheet
	6Q Black Phenyl Polioxide (Noryl) plastic 12" x 12" connection. NEMA 4 very light weight. Excellent corrosion resistance.	6Q Dimensional Drawing 6Q Assembly Cut Sheet
	6T Miniature moulded head, 1/4" x 1/4" connection. Max temperature 350°F (176°.C). 6U High temp miniature moulded head, 1/4" x 1/4" connection. Max temperature 800°F (426°.C).	6T Dimensional Drawing 6U Dimensional Drawing
	6S250 Cylinder style head, 1/4" NPT. Small & light weight. 6S125 Cylinder style head, 1/8" NPT. Small & light weight.	6S250 Dimensional Drawing 6S125 Dimensional Drawing
	688A1 Indicating explosion proof aluminum head, 1/2" x 3/4" x 3/4" connection. NEMA 4X, IP66, FM, CSA, ATEX, & IECEx class 1, 2, & 3 groups B-G.	688A1 Dimensional Drawing FM Conformance Certificate CSA Conformance Certificate ATEX Conformance Certificate IECEx Conformance Certificate
	688S1 Indicating explosion proof 316 stainless steel head, 1/2" x 3/4" x 3/4" connection. NEMA 4X, IP 66, FM, CSA, ATEX, & IECEx class 1, 2, & 3, groups B-G.	688S1 Dimensional Drawing FM Conformance Certificate CSA Conformance Certificate ATEX Conformance Certificate IECEx Conformance Certificate