Installation Instructions
Original Instructions
Bulletin 802M (2-Circuit Standard) and 802MC (2-Circuit Corrosion
Resistant) Limit Switch
Catalog Numbers
802M & 802MC
Mounting
Two clearance holes for #10 screws are provided for front mounting.
The adapter foot included with the two-circuit standard version may
be used when it is desired to mount the switch to the dimensions of a
four-circuit and other larger size limit switches. Place the adapter foot
end with the tapped hole into the rectangular recess at the lower rear
corner of the switch and securely tighten (approximately 3.61 N•m
(32lb•in.) the adapter foot with the mounting screw provided. Make
sure the exposed end of the adapter foot is flush with the rear surface of
the switch. See Figure 1.
To be compatible with the exposed metal parts of the corrosion
resistant version (Bulletin 802MC), use Type 316 stainless steel
mounting hardware.
Figure 1
Wiring
Bulletin 802M and Bulletin 802MC limit switches are pre-wired and
factory sealed. Refer to wiring diagram on nameplate for proper circuit
hookup.
The indicating light is pre-wired and permanently sealed; the LED
cannot be replaced.
Optional wiring formats: Some switches may be equipped with a mini-
type male connector. If the mating cord (not supplied by Rockwell
Automation) contains a green lead, it should be permanently re-
identified with a color other than green to guard against its use as an
equipment grounding conductor. Refer to wiring diagram on
nameplate for proper circuit hook-up.
Some switches may be equipped with 24V DC (Red) LED indicating
light. One side of the light will be wired to either the normally open
(LF) or the normally closed (LC) contacts. The other side of the
indicting light will be available through an extra cable lead or mini-type
connector pin. This permits wiring of the indicating light with the load
controlled by the limit switch. Refer to wiring diagram on nameplate
for proper circuit hook-up.
Actuator Head Positioning
All actuator head styles may be placed in any of four positions on the
switch body. Loosen the four captive head screws, place the head in the
desired position and securely re-tighten (approximately 1.24 N•m
(11lb•in.) the four screws. Figure 2 shows the rotary operating head
with a roller lever.
Figure 2
Lever Positioning
The lever used with rotary actuated devices is adjustable to any
position through 360° around the shaft. Loosen the lock pin nut, move
the lever to the desired position and securely re-tighten the lock pin nut
(see Figure 3). Refer to our website (http://
ab.rockwellautomation.com/) for a complete selection of operating
levels.
Figure 3
Changing Direction of Actuation
The switch action of spring return, rotary actuated devices can be set to
operate with clockwise only, counterclockwise only or clockwise and
counterclockwise shaft movement. To change the direction of
actuation, loosen the four head mounting screws and remove the
operating head from the switch body. Locate the plunger on the
underside of the operating head. Pull it outward and rotate it in steps of
90o to provide the operating mode desired. The respective settings are
shown in Figure 4. Make sure the plunger is pushed back inward before
the operating head is reattached to the switch body.
IMPORTANT The contacts in each switching element must be wired with
the same polarity.
Adapter Foot
Mounting Screw
Mounting
Foot
Bulletin 802M 4-circuit and
Larger Size Limit Switch
Mounting 59.5 mm (2.34 in.)
Bulletin 802M and 802MC 2-circuit
Mounting 46 mm (1 13/16 in.)
29.4 mm (1.57 in.)
