Teledyne Reynolds - 10, 15, 20, and 25 kVDC - Series 500, 521, 521 SL, 531 and 531 SL Coaxial Connectors with Recessed Contacts for Added User Safety

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The 500, 531, 531 SL, 521 and 521 SL Series of high voltage connectors and cable assemblies are designed to minimize the risk of electrical shock to personnel through the use of recessed contacts. Both the receptacle and plug connectors have recessed contacts positioned to stand-off the rated voltage of each respective series in an unmated condition at sea level.

In addition to the recessed contact, the connectors also feature a spring finger body design which assures a reliable ground circuit prior to engagement of the center contact; further reducing the risk of electrical shock.

Operating Temperature Range
-40° to 85°C

Series 500
The 500 Series offers polarization by having two plug and receptacle designs with each pair having either a flush or recessed contact. For example, the plug designed with a flush contact will only mate with the receptacle with a recessed contact.

Specific Characteristics:
Voltage Rating : 10 kVDC at sea level
Test Voltage : 13 kVDC at sea level

Series 521
Specific Characteristics:
Voltage Rating : 25 kVDC at 70,000 ft.
Unmated Voltage Rating : 20 kVDC at sea level
Test Voltage : 41 kVDC at 70,000 ft.

Series 521 SL
Specific Characteristics:
Voltage Rating : 20 kVDC at sea level
Unmated Voltage Rating : 20 kVDC at sea level
Test Voltage : 28 kVDC at sea level

Series 531
Specific Characteristics:
Voltage Rating : 15 kVDC at 70,000 ft.
Unmated Voltage Rating : 10 kVDC at sea level
Test Voltage : 31 kVDC at 70,000 ft.

Series 531 SL
Specific Characteristics:
Voltage Rating : 10 kVDC at sea level
Unmated Voltage Rating : 10 kVDC at sea level
Test Voltage : 13 kVDC at sea level

Request Information

Unit of Measure

Items	167-3516 521 Series Plug Kit Request Quote	167-4534 521 Series Plug Kit Request Quote	167-3517 521 Series Receptacle, Sealed, Front Mount Panel Connector Request Quote	167-3554 531 Series Plug Kit Request Quote	167-3555 531 Series Receptacle, Sealed, Front Mount Panel Connector Request Quote
Series	N/A 521 SL	N/A 521	N/A 521	N/A 531	N/A 531
Assembly Type	N/A Plug Bag Assembly	N/A Plug Bag Assembly	N/A Receptacle Bag Assembly	N/A Plug Bag Assembly	N/A Receptacle Bag Assembly
Altitude/Reduced Pressure Rating	N/A Sea Level	N/A 70,000 ft.	N/A 70,000 ft.	N/A 70,000 ft.	N/A 70,000 ft.
Current Rating	N/A TBD 20 A	N/A TBD 20 A	N/A TBD 20 A	N/A TBD 10 A	N/A TBD 10 A
Operating Temperature	N/A -40 to 85 ºC
Test Voltage @ 70000 ft.	N/A 41	N/A 41	N/A 41	N/A 31	N/A 31
Current Rating	N/A 20 A	N/A 20 A	N/A 20 A	N/A 10 A	N/A 10 A
Insulation Resistance	N/A 10⁶ MΩ	N/A 10⁶ MΩ	N/A	N/A 10⁶ MΩ	N/A
Mating Compatibility	N/A All series 521 receptacles for cable preparation and assembly instructions	N/A All series 521 receptacles for cable preparation and assembly instructions	N/A Mates all series 521 plug cable assemblies	N/A Reynolds receptacle #167-3555	N/A Mates all Reynolds series 531 plug cable assemblies.
Pressure Differential Rating	N/A	N/A	N/A Sealed for 1 ATM	N/A	N/A
Maximum Leak Rate (Helium)	N/A	N/A	N/A 1 X 10 ^{-6 ^cc/sec}	N/A	N/A
Panel Mounting Style¹	N/A	N/A	N/A Front Mount	N/A	N/A Front Mount
Mounting Notes	N/A	N/A	N/A	N/A	N/A Allow clearance for 1/2-28 UNEF thread
Panel Mounting Torque	N/A	N/A	N/A 90 to 95 in-lbs	N/A	N/A 42 to 48 in-lbs
Insulator Material	N/A
Coupling Nut Material	N/A	N/A	N/A	N/A Brass	N/A Brass
Finish	N/A	N/A	N/A	N/A Nickel Plate	N/A Nickel Plate
Contact	N/A	N/A	N/A	N/A Beryllium Copper	N/A Brass
Accomodates	N/A	N/A	N/A	N/A Type 'C' Cable (P/N 167-2669)	N/A
Production Test	N/A	N/A	N/A	N/A 100% tested at 15KVDC for 10 sec.	N/A
Life Test	N/A
Pressure	N/A	N/A	N/A	N/A	N/A Flange, Insulator and contact seals allow for 30 psi differential pressure. Max. Leakage : 1 x 10^-8 cc/sec He.
Max. Allowable Leakage	N/A	N/A	N/A	N/A	N/A 10 µA
Bayonet Coupling Nut Diameter	N/A 0.750 in19 mm	N/A 0.750 in19 mm	N/A 0.750 in19 mm	N/A	N/A
Bayonet Coupling Nut Material	N/A Brass
Bayonet Coupling Nut Finish	N/A Nickel
Coupling Style	N/A Bayonet
Contact Diameter	N/A 0.077 in1.9 mm	N/A 0.077 in1.9 mm	N/A 0.077 in1.9 mm	N/A	N/A
Contact Material	N/A BeCu	N/A BeCu	N/A Brass	N/A	N/A
Contact Finish	N/A Gold	N/A Gold	N/A Gold	N/A	N/A
Contact Type	N/A Female	N/A Female	N/A Male	N/A Female	N/A Male
Spring Finger Grounding (Plug)	N/A Yes	N/A Yes	N/A Yes	N/A	N/A
Braid Termination	N/A Crimp
END #1	N/A
END #2	N/A
Standard/Non-Standard²	N/A Standard Part
Wire Type	N/A Shielded
Sealed Receptacle	N/A N/A	N/A N/A	N/A Yes	N/A N/A	N/A Yes
A Diameter	N/A 0.75 in19.05 mm	N/A	N/A	N/A 0.625 in15.9 mm	N/A
B	N/A 4.41 in112 mm	N/A	N/A 3.94 in100.08 mm	N/A 2.72 in69 mm	N/A 2.70 in68.58 mm
C	N/A	N/A	N/A 2.56 in65.02 mm	N/A	N/A 1.62 in41.15 mm
D	N/A	N/A	N/A 0.25 in6.35 mm	N/A	N/A 0.312 in7.92 mm
Hex	N/A	N/A	N/A 0.93 in23.62 mm	N/A	N/A 0.75 in19.05 mm
Plug Contact Material/Finish	N/A BeCu/Au
Receptacle Contact Material/Finish	N/A	N/A	N/A Brass/Au	N/A	N/A Brass/Au
Receptacle Insulator Material	N/A	N/A	N/A Plastic	N/A	N/A Plastic
Plug Insulator Material	N/A Plastic
Wire Insulation	N/A PE
Export Classification	N/A TBD
RoHS Compliant	N/A TBD
Voltage Rating	N/A 25 kVDC	N/A 25 kVDC	N/A 25 kVDC	N/A 15 kVDC	N/A 15 kVDC
Test Voltage at Sea Level	N/A 28 kVDC	N/A 28 kVDC	N/A 28 kVDC	N/A	N/A
Assembly Type	N/A
Part #	N/A
¹ Allow mounting hole clearence for 5/8-24 UNEF thread ² Non-standard parts will have longer lead times and potentially higher pricing. Please contact Teledyne Reynolds Engineering department to determine feasibility for use in your application.