Hollingsworth Enterprises, Inc.

• Nema 4 Rated
• Flip-Top Design for Easy Access and Closure
• Hinge Pins and Latches of Stainless Steel
• Silicone Gasket, Temperature Rated to 6000 F.
• Provisions for Security Tags
• Accepts H741, H742 & H743 Series Blocks
• Accepts H684 Series Blocks
(H684-6 in polypropylene heads only)
• Polypropylene Continuous Rating: 1980 F.
• Conduit Port Size: 3/4" NPT

• Will Fit H701 - H709 Heads
• Will Fit H680, 682 & H683 Series Heads
• Stepped Center Hole for Spring Loading

• Meets NEMA 4 requirements for indoor/outdoor nonhazardous
use
• 825F Graphite Gasket

• Meets NEMA 4 requirements for indoor/outdoor nonhazardous
use
• 825F Graphite Gasket

• Meets NEMA 4X. FDA requirements for indoor/
outdoor non-hazardous use
• 825F Graphite Gasket

PART NUMBERS

H741
H695 Single Block, Brass Terminals

PART NUMBER

H742

Note:
UL Rated

PART NUMBER

H770

PART NUMBER

H771

No Base Plate

PART NUMBERS

H772-2 2 Terminal
H772-3 3 Terminal
H772-4 4 Terminal

No Base Plate (Loose Base Plate Available - Inquire)

PART NUMBERS

H773-2-N 2 Terminal
H773-4-N 4 Terminal
H773-6-N 6 Terminal

Steel Base Plate
Spring Mount

PART NUMBERS

H774-2 2 Terminal
H774-4 4 Terminal
H774-6 6 Terminal

• 2, 3, or 4 Terminal
• “O” Ring Moisture Seal (Remove for Free Fit if Desired)
• Neoprene Cap Grommet Standard
• 1/4" NPT Process Opening – Standard
• 1/8" NPT Process Opening – Optional (add-1 to P/N)
• 5/16" Compression Fitting in Cover – Optional (Add "- C" to Part Number)

PART NUMBERS

H791 2 Terminal 1/4" NPT Miniature Head
H791-1 2 Terminal 1/8" NPT Miniature Head
H792 3 Terminal 1/4" NPT Miniature Head
H792-1 3 Terminal 1/8" NPT Miniature Head
H793 4 Terminal 1/4" NPT Miniature Head
H793-1 4 Terminal 1/8" NPT Miniature Head

PART NUMBERS

H785-U-2 Single Circuit 1/8" Sheath
H785-U-4 Single Circuit 1/4" Sheath

• Miniature Head
• Burnished Die Cast Aluminum
• 2 Terminal Block, or 4 Terminal Block
• 1/2 NPT Process, 1/2 NPT Conduit
• Includes Compression Fitting Adaptor
• Includes Rubber Ferrule

PART NUMBERS

H775-1 Head w/ 2 Terminal Block
H775-2 Head w/ 4 Terminal Block
H776-1 2 Terminal Block only
H776-2 4 Terminal Block only

The H781-3 and H781-6 heads are molded from white unpigmented polypropylene. Both heads meet NEMA 4X requirements for indoor or outdoor non-hazardous use to provide protection against dust, rain, splashing water and hose directed water. Although these thermoplastics are attacked by strong acids, they provide good resistance to most acid solutions, alkalines and salt water. They provide good weathering resistance to sunlight. The white polypropylene head is FDA compliant for use in sanitary applications. These heads, and the Bunan O-Ring, have a continuous use temperature rating of 2500 F. The cover is chained to the body with stainless steel chain and pins. All heads have 1/2" NPT process openings and 3/4" NPT conduit openings.

Use HBPC series Braze Plugs, HCB Series Brass Compression Fittings, or HCS Series Stainless Compression Fitting for connection to TC Probe.

NOTE:

Inconel or 17-7PH Spring (Included)

NOTE:

• Stainless Steel or 17-7 PH
• .440 OD springs fit H743 series blocks
• Other spring loading applications