Cole Hersee 75920 User manual

Master Disconnect Switch
75920
300A 12V DC
250A 24V DC
200A 36V DC
Mounting pattern 1 is the easiest to achieve,as it does not require a
panel punch. For additional mounting assurance,Mounting Pattern
2 also uses the flats on the mounting shaft to prevent rotation.
This product requires the use of the bezel. It supports the knob
and guides it during operation to assure long life and smooth
operation.
1. Open the attached hardware bag and check contents versus
the list on the next page.
2. Put one of the 3/4” hex nuts on the neck and then the 3/4”
lock washer. Make sure to run it down far enough to leave
space the get the neck through the panel.
3. Bring the switch in through the back of the panel making sure
to align the anti-rotation stud.
4. Adjust the mounting nut behind the panel until ½ - ¾”of the
threaded portion of the neck (not including the shaft) extends
through the panel.
5. Holding the switch in place, place the bezel over the neck and
align it to the anti-rotation pin.
6. Put the second mounting nut on the threaded neck and
tighten to 216 in-lbs maximum.
7. Line up the knob with the flat on the shaft, and press it in
place until it bottoms out.
8. Check to make sure that the lockout opening on the bezel and
the lockout opening on the knob line up so that a padlock
shackle can be placed through both in the off position. If this
is out of alignment,remove the knob and adjust the two
mounting nuts until you can align the bezel and knob.
9. Once satisfied with the fit of the knob use the 4-40 pan head
screw ( 2 in-lbs torque) to lock the handle in place. Then press
the plug into the hole with your fingers.
10. Remove the nuts and lock washers from the two 3/8”studs.
Ø13
16 [Ø20.6]
0.813 [20.65]
Ø5
16 [Ø7.9]
Required for Switches
with Indexing Pin
Ø5
16 [Ø7.9]
0.670 [17.02]
0.813 [20.65]
Ø13
16 [Ø20.6]
Connection Schematic
Mounting Pattern 1
Mounting Pattern 2
Installation
Make good contact!
Unlike many other Master Disconnects on the market,
the 75920 studs are permanently affixed to the base,
so you can remove all the hardware and use the entire stud.

CONNECTOR TO ACCEPT
DEUTSCH DT06-4S CONNECTOR
Pin 1 - Ground
Pin 2 - Manual
Over Ride
Pin 3 - LED/Alarm
(Warning)
Pin 4 - Ignition
Override
11. SEE PHOTO
Place the terminal(s) (attached to an appropriately sized
wire) directly on the base of the stud,as this will assure
the best contact and the least amount of voltage drop
across the connection.
12. Place lock washer over terminal and tighten down nut to
a torque of 70-90 in-lbs.
.
2.34 [59.5] 1.38 [34.9]
0.450 [11.43]
Ø2.75 [Ø69.8]
Ø2.72 [Ø69.1]
2.56 [65.0]
BEZEL, Black Plastic,
White Lettering (in kit) HEX NUT,
Brass (in kit)
HOUSING, Black Plastic
LOCK WASHER
HEX NUT, Brass
STUD, Tin Plated Copper, 3/8-24
LOCKWASHER, (in kit)
CAP & SCREW, (in kit)
5.38 [136.7]
KNOB ASSY.,
(in kit)
Normal Operation Summary
General Specifications
IF-165
Rev B
Integral Lockout Feature!
Place a padlock or other lockout device
through both holes (the bezel and the
knob) and lock it. We recommend using
a locking device with a 5/16” or 7mm
shackle.
Environmental: 40ºC to 85ºC.
Sealed to IP67 per IEC 529
Ignition-proof to ISO 8846
Electrical: Meets or exceeds UL 1107
Current Ratings
12V 300A continuous
24V 250A continuous
36V 200A continuous
Intermittent
1000A 90 secs On 5 minutes Off
1500A 60 secs On 5 minutes Off
2000A 30 secs On 5 minutes Off
3000A 15 secs On 5 minutes Off
Panel Thickness Range: 0.032-0.450”(0.81-11.43 mm)
Dimensions: See below
Submit technical questions to: [email protected]
Consult the factory if you need further assistance
617-268-2100
8:00am to 4:30pm Eastern Time
www.colehersee.com
ON
OFF
OFF:
Rotate the knob
90ºcounterclockwise until the indi-
cator is at the 12 o’clock position,
and the circuit will be
disengaged
ON:
Rotate the knob 90º clockwise
until the indicator is at the 3
o’clock position,and the circuit
will be engaged
Contents of 67191
Hardware Kit
1 Knob Assembly
1 Knob Hole Plug
1 Bezel
1 4-40x0.75 Pan Head Screw
1 3/4” Lock Washer
2 3/4”-16 Hex Nuts