The 27407 is a standard SAE hermetic feedthrough designed for high-current applications, with a 5/8"-11 stud thread, 1 1/16"-12 housing thread, and a maximum current rating of 750 amps. It features a brass conductor and epoxy insulation, with a housing length of 4.36 inches, a pin protrusion length of 3.31 inches, and a hex size of 1 3/8 inches. It operates at pressures from 10^-9 Torr to 10,000 PSI, with voltage capability up to 5 kV and temperature extremes from -160°C to over +200°C. The leak rate is specified at less than 1×10^-9 std cc He/sec, and it complies with RoHS and REACH standards. The part is manufactured for use in vacuum and pressure systems, including HVAC/R compressors and power distribution equipment.
StudSeal™ hermetic terminal seals provide a secure barrier for high current or high voltage transfers in sealed environments. Our products are designed for high vacuum and pressure applications, including air conditioning and refrigeration compressors, semiconductor processing equipment, vacuum furnaces, and power distribution equipment.
Customize your terminal seal
We also offer completely customized terminal seals with individual terminal ends or built as a multi-terminal plate assembly. The mechanical interface, number of terminals, and each terminal feedthrough end can be customized to meet the requirements of your specific application. While threaded terminals are most popular, other variations of threaded terminals as well as wires and connectors can be designed into a StudSeal feedthrough.
Standard Designs
Our standard hermetic terminal seals feature solid copper, heavy-current conductors sealed in NPT and face seal packages housing styles and stainless steel materials, with a hermetic, moisture-tight epoxy to seal between the conductor and housing. They are compatible with a wide range of liquids and gases, including refrigerants, oils, heat transfer fluids, and jet fuel, and comply with various certifications and standards.
DATASHEET
We manufacture custom designs for a range of production volumes to meet your fit, form, and functional requirements. Our products offer a moisture-tight seal for transferring power in and out of a sealed environment, and can handle operational loads of up to 1,000 amps and 15kV. Choose from standard or customized designs to meet your specific application needs.
Contact us today to discuss your hermetic terminal seal and power feedthrough requirements.
Features
PERFORMANCE CAPABILITIES
ELECTRICAL CONNECTION TYPES
MARKET CAPABILITIES
STANDARD SAE DESIGNSStud Thread Housing Thread Housing Material LA LP L Hex Maximum Current Catalog Number
1/4”-20 3/4”-16 Stainless Steel 1.95” 3.14” 1.19” 1.0” 105 amps 27404
3/8”-16 3/4”-16 Stainless Steel 1.95” 3.14” 1.19” 1.0” 275 amps 27405
½”-13 7/8”-14 Stainless Steel 2.0” 3.36” 1.34” 113/16” 500 amps 27406*
5/8”-11 1 1/16”-12 Stainless Steel 4.36” 3.31” 1.27” 13/8” 750 amps 27407*+
O-ring is Nitril rubber. Four Brass nuts per StudSeal. Custom power feedthroughs are common. Complete our contact form for any design modifications you require.
Pressure: To 1000 psi (higher pressure designs available)
Temperature: -40°F to 225°F
Vacuum: 1×10-10 Torr
*Voltage for 27406 and 27407 is limited to 1000V
+ Convoluted Standoff
STANDARD NPT DESIGNSStud Thread Housing Thread Housing Material LA LP L Hex Maximum Current Catalog Number
1/4”-20 ½” NPT Brass 2” 3.09” 1.09” 7/8” 105 amps 27408
1/4”-20 ½” NPT Stainless Steel 2” 3.31” 1.09” 7/8” 105 amps 27408-SS
3/8”-16 ¾” NPT Brass 2” 3.17” 1.17” 11/8” 275 amps 27409
3/8”-16 ¾” NPT Stainless Steel 2” 3.57” 1.17” 11/8” 275 amps 27409-SS
½”-13 1” NPT Brass 2” 3.36” 1.36” 13/8” 500 amps 27410
½”-13 1” NPT Stainless Steel 2” 3.36” 1.75” 13/8” 500 amps 27410-SS
5/8”-11 1” NPT Brass 3.38” 4.29” 1.36” 13/8” 750 amps 26212
5/8”-11 1” NPT Stainless Steel 3.38” 4.29” 1.36” 13/8” 750 amps 26212-SS
Douglas Electrical offers a wide range of sealed conductors for high pressure and vacuum applications. Multi-pin plates from 1.5″ to 9″ square have been manufactured in volume, with current capacities from 10 to 1200 amps. Our flexible technology affords far greater design latitude than our competitors and provides customers with custom solutions at off-the-shelf prices.
Pressure: To 1000 psi (higher pressure designs available)
Temperature: -40°F to 225°F
Vacuum: 1×10-10 Torr
| Douglas Electrical Components | |
|---|---|
| Product Category | Electrical Connectors |
| Product Number | 27407 |
| Product Name | SAE Hermetic Terminal Seal |
| Connector Type | USB |
