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MICRO SWITCH BX2 Series
CHANGING DIRECTION OF ACTUATION
SIDE ROTARY
Catalog listings with the first three letters BX2A, BX2H, BX2L,
BX2P, and BX2R may be adjusted to operate clockwise, coun-
ter-clockwise or both. Catalog listings BX2M (center neutral)
and BX2N (maintained) operate in both directions but cannot
be changed. To change the actuation direction for the BX2A,
BX2H, BX2L, BX2P, and BX2R, follow these steps:
1.
Loosen the head screws and remove the head from the
switch housing.
2.
On the bottom of the head, insert a screwdriver in the slot
provided (Fig. 4) and lift open the hinged cover.
3.
Referring to Fig. 5, slide the cam all the way back, so cam is
free to rotate on the shaft.
4.
Using a screwdriver or similar tool, rotate the cam to the
desired actuating position (Fig. 6).
5.
Slide the cam all the way forward to its original position,
and close the hinged cover.
6.
Replace the operating head on the switch housing and
securely tighten the head screws to 1.4 Nm to 1.8 Nm [12
in lb to 16 in lb].
FIGURE 4.
FIGURE 6.
FIGURE 5.
FIGURE 7. EXPLODED VIEW OF CLAMP &
SCREW
REPLACEMENT LEVERS
Use only non-sparking levers to retain the explosion proof
qualities.
WIRING INSTRUCTIONS
1.
Unscrew cover to expose the switching element for wiring
or replacement. To aid in cover removal, a screwdriver or
bar may be used on the wrenching lugs. Use up to size
#12 AWG solid or stranded wire to connect to the pres-
sure type connector terminals. Stripped wire ends or any
spade and ring connector that will fit the terminals may be
used. Spades may be up to 7.9 mm [0.312 in] wide, rings
up to 7.9 mm [0.312 in] diameter. With spade or ring type
connections preinsulated connectors or heat-shrinkable
tubing should be used to provide insulation between ter-
minals. Conduit size, electrical ratings and circuit diagram
are shown on the nameplate. Wire the double pole units by-
connecting lead wires to the terminals nearest the conduit
opening first. An internal grounding screw is located on the
right side; an external grounding screw is located on the
upper left side. Torque all terminal screws and grounding
screws to 1 Nm to 1.8 Nm [9 in lb to 16 in lb]. Reassemble
cover and torque to 10 Nm [90 in lb].
2.
Put cover locking clamp on circular cover and tighten to
1.4 Nm to 1.8 Nm [12 in lb to 16 in lb].
3.
The internal grounding terminal must be used for the
equipment grounding connection, and the external termi-
nal is for supplementary bonding connection where local
codes or authorities permit or require such connections.
50047766
ISSUE 11
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