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MICRO SWITCH™ BX Series
TOP ROTARY
Follow these steps to change the operating direction of the BXB
type switch:
1.
Loosen the head screws and remove head from the switch
housing.
2.
From the bottom of the head, grasp the end of the pin
plunger (Figure 7) and remove the pin. It may be necessary
to rotate the actuating shaft to expose the end of the pin
plunger.
3.
Referring to Figure 8, select the correct pin plunger position
for the desired direction of actuation.
4.
Insert the pin plunger in the position providing the desired
direction of actuation.
5.
Replace the operating head on the switch housing and se-
curely tighten the head screws to 1.4 Nm to 1.8 Nm [12 in lb
to 16 in lb].
FIGURE 7.
FIGURE 9. EXPLODED VIEW OF CLAMP &
SCREW
FIGURE 8.
REPLACEMENT LEVERS
Use only non-sparking levers to retain the explosion proof quali-
ties.
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 pressure 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 terminals. Conduit
size, electrical ratings and circuit diagram are shown on the
nameplate. Wire the double pole units byconnecting 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 the
Torx® screw to 1.4 Nm to 1.8 Nm [12 in lb to 16 in lb] using
the included Torx® tamper-resistant bit.
3.
The internal grounding terminal must be used for the equip-
ment grounding connection, and the external terminal is for
supplementary bonding connection where local codes or
authorities permit or require such connections.
PK 80148
ISSUE 10
Honeywell Sensing and Control
3
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