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Metal Alloy Connecting Heads

Common Specifications: Stainless steel chains and pins, gasketed screw covers, accepts Series 340 ceramic terminal blocks, or RTD transmitters.

Specifications: Screw slotted cap, O-ring seal


Material Processing Opening Conduit Opening
316L Stainless Steel
Cast Iron
Aluminum
1/2" or 3/4" NPT
1/2" thru 1" NPT
1/8" thru 1" NPT
3/4" NPT
3/4" NPT
3/4" NPT
Miniature Nickel Plated Steel 1/8" or 1/4" NPT Grommet or Compression Fitting


Thermoplastic Connecting Heads

Common Specifications: Stainless steel chains and pins, O-ring sealed screw covers, integral self contained terminals or will accept Series 340 ceramic terminal blocks or RTD transmitters
1Trade name of E.I. DuPont


Material Processing Opening Conduit Opening
Polypropylene
Delrin¹
1/2" NPT
1/2" NPT
3/4" NPT
3/4" NPT


Explosion Proof UL Listed Connecting Heads

Common Specifications: Stainless steel chains and pins, gasketed screw covers, accepts Series 340 ceramic terminal blocks, or RTD transmitters.

Explosion Proof Ratings: NEC Class I Group C,D and NEC Class II Group E,F,G


Material Processing Opening Conduit Opening
316L Stainless Steel
Cast Iron Body/
Aluminum Cap
1/2" or 3/4" NPT
1/2" or 3/4" NPT
3/4" NPT
3/4" NPT


Series 340 Ceramic Steatite Terminal Blocks

Electrical Rating: NEC Class 2


Block Type Number of Terminals Max Wire Gauge/Screw Type Spring Loading Capability
Single 2 8 Gauge
(8-32 SS)
No
Duplex 4 8 Gauge
(8-32 SS)
No
Triplex 2,3,4 or 6 10 Gauge
(5-40 SS)
Yes