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W6 84 Pin MASS Connector System

Technical Data - Crimp Type

Materials and Finishes:

Mechanical Data:

Contacts: Copper alloy, hard 
gold plate over nickel under 
plate per MIL-G-45204
Insulators: Low temperature 
elastomer
"O" Rings and Seals: Low 
temperature elastomer
Shells and Covers: All 
aluminum alloy, black finish, 
chain-stainless steel
Blue Locking Ring: Locking ID 
Ring for W6 inline

Operating Temperature:
-40 C to +105 C
-40 F to +221 F

Contacts: #20 AWG Crimp type 
(7.5 Amp rating)
Contact Retention: 20 lbs. 
minimum
Connector Engagement and 
Separation Forces
:
20 lbs. maximum
Polarization: Hermaphroditic

Electrical Data:

Operating Voltage: 500 VDC or 
400 VAC rms max
Insulation Resistance: 2500 
megohm minimum
Contact Resistance: 6 
milliohms maximum

Specifications

W6CRP
M48/84CH
M48/84CHCAP
M84R-INS
PT1-16CL-PVC
PT1-8BK
M1RPIN
M1RSKT
W6 PIN OUT

W6IRP
M84-IL
M48/84ILCAP
M84R-INS
M122-SG
PT1-16CL-PVC
PT1-8BK
SPLIT RING
M1RPIN
M1RSKT
W6 PIN OUT

Mass 84 Pin Chassis Connector 
Mass Chassis Flange Black
Mass Chassis Dust Cap
Mass Removable Crimp Insert
1/16“ Clear PVC Tube Cut to 1.5“ Length
1/8“ Black Shrink Tube Cut to 0.5“ Length
Mass Gold Pins Male
Mass Gold Sockets Female
Wiring Diagram for Mass 48/84

Mass 84 Pin Inline Connector
Mass 84 Inline Shell with Blue Coupling Nut
Mass Inline Dust Cap
Mass 84 Removable Crimp Insert
Small OD Mass 122 Strain Relief
1/16“ Clear PVC Tube Cut to 1.5” Length
1/8“ Black Shrink Tube Cut to 0.5” Length
Split ring 3/4” for cap and chain assembly
Mass Gold Pins Male
Mass Gold Sockets Female
Wire Diagram for Mass 48/84

1
1
1
28
28
45
45
1

1
1
1
1
28
28
1
45
45
1

The W6RP is an 84 contact addition to the virtually indestructible 

whirlwind Mass Connector family. This new design uses crimp type, 
replaceable pins and sockets. Like all Mass connectors, the W6RP 
has equal numbers of both pins and sockets within the resilient rubber 
insert. This arrangement allows two identical contact inserts to mate, 
requiring  only  a  panel  mount  or  inline  housing  to  complete  the 
assembly.  Housings  are  made  from  machined  aluminum  and  the 
threaded  locking  ring  ensures  positive  connection  even  under 
adverse conditions. When mating two inline connectors, one locking 
ring is merely unscrewed to expose threads, which are gripped by the 
other locking ring.

To properly mate Mass connectors, unscrew the locking rings to 

expose  the  inserts,  align  the  inserts  and  push  together  using  only 
hand  pressure  and  then  screw  the  locking  ring  on  to  secure  the 
connection.

Due  to  the  unique  hermaphroditic  design  the  usual  connector 

designations  of  male  and  female  do  not  apply,  therefore  Mass 
connectors  are  specified  as  Outputs  and  Inputs.  An  Output  wired 
connector  must  mate  with  an  Input  connector  configuration.  The 
whirlwind wiring standard is odd numbered cable pairs attached to 
pins and even numbered cable pairs attached to sockets in the Output 
connector. Input wiring has odd pairs attached to sockets and even 
pairs  attached  to  pins.  For  example,  channel  one  is  on  pins  in  the 
Output connector and mates with channel one on sockets in the Input 
connector, which maintains color coding throughout the system. For 
planning system layout, whirlwind standard starts at the stage box and 
designates the first connector as an Output.

Cables with Mass connectors at both ends require one end to be 

wired  as  an  Output  and  the  other  wired  as  Input.  Each  wire  must 
connect to a pin at one end and the same numbered socket at the 
other.

Parts

2.50“ (SQUARE)

HOLE CUTOUT ACTUAL SIZE

2.00“ (SQUARE)

O 2.25“

O 0.28“

Inline

4.40“ (with cover in place)

3.52“

1.81“

1.38“

2.16“

Overall Chain Length 8“

1.80“ (with cover in place)

0.25“

2.46“

Chassis Mount

2.50“

(Strain relief Bushing adds approximately 2“ to Inline)

®

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