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Larson Electronics, LLC
Fax: (903) 498-3364
www.larsonelectronics.com
2
of
3
Ratings/Approvals
Class I, Divisions 1&2 Groups C,D
Class
I
I,
Division 1, Groups E, F, G
Class III
NEMA 7 (C, D), 9 (E, F, G)
C
AUTION
: Before installing, make sure you are compliant with area classifications, as
failure to do so may result in bodily injury, death and property damage. Do not attempt
installation until you are familiar with the following procedures. All installation must comply
with the applicable Electrical Code(s).
Make sure that the circuit is de-energized before starting installation or maintenance. Verify
that the installation is grounded. Failure to ground will create electrical shock hazards,
which can cause serious injury and or death.
MOUNTING INSTRUCTIONS
To install the product correctly, follow the steps below:
PUSHBUTTONS:
1.
Disconnect the contact block from the assembly by sliding the cage locking tab
clockwise.
2.
Remove the nut and protective sleeve from the threaded body.
3.
Place the legend plate when used under the knob, or attach to the enclosure, if
applicable.
4.
Make sure the operator threads and surface being attached to are clean and free of
debris. Screw the pushbutton assembly into the enclosures 3/4” NPSM or M22x1,5
threaded entry and torque 3 N-m to 6 N-m (27 in.-lbs. to 53 in.-lbs.). Ensure legend
plate is held in place to prevent rotation, if applicable.
5.
Install the nut onto the assembly threaded body and torque to 2 N-m (18 in.-lbs.) with an
appropriate tool.
6.
Installing the contact block to the assembly:
a.
With the cage locking tab held in the clockwise position, align the assembly channel
with the locking cage ID tabs on the contact block and slide the block onto the
assembly.
b.
Move the cage tab counterclockwise to lock switch in place.
c.
Verify orientation of block is such that control wires and certification tag won't be
directed into flame path of cover/body.
After performing the connections described above, the product can be safely used, and the
ingress of protection is assured.
Phone:
877-348-9680
EPCS-PB10-1XMPB-3PSW