Datasheet

21
sensing.honeywell.com
MICRO SWITCH™ Premium Large Basic Switches
LARGE SNAP-ACTION SWITCH ACCESSORIES
Brackets
Description 8MA1 8MA2 17MA1-B
Description Adjustable mounting bracket with
adjustment slot on left
Adjustable mounting bracket with
adjustment slot on right
Conversion mounting bracket
Housing material Steel Steel Corrosion-resistant metal
Measurements 60,2 mm W x 21,3 mm H x 7,4 mm D [2.37 in W x 0.84 in H x 0.29 in D] 66,8 mm W x 19,0 mm D
[2.63 in W x 0.75 in D]
Features sturdy plated steel construction; fast, easy screwdriver adjustment; can be used
with most standard basic switches
converts standard basic switches from
side to top mount; corrosion resist-
ant; snaps into switch mounting holes
without tools
Die-cast Zinc Enclosures
Description 3PA1 3PA28 3PA2
Description mounted from either side through 3,55
mm [0.140 in] dia. holes on 25,4 mm
[1.0 in] centers; conduit/hub 0.5 – 14
NPT internal thread
mounted from either side through 3,55
mm [0.140 in] dia. holes on 25,4 mm
[1.0 in] centers. 1/2-14 NPSM internal
thread conduit hub
switch secured in enclosure; two 4,37
mm [0.172 in] dia. holes in flange ac-
cept #8 screws for mounting on 41,3
mm [1.625 in] centers; conduit/hub 0.5
– 14 NPT internal thread
Housing material die-cast zinc enclosure (side mount) die-cast zinc enclosure (side mount) die-cast zinc enclosure (flange mount)
Measurements 74,8 mm W x 42,9 mm H x 25,4 mm D
[2.95 in W x 1.69 in H x 1.00 in D]
74,8 mm W x 42,9 mm H x 25,4 mm D
[2.95 in W x 1.69 in H x 1.00 in D]
74,8 mm W x 42,9 mm H x 25,4 mm D
[2.95 in W x 1.69 in H x 1.00 in D]
Sealing/Features NEMA 1; IP 40; protects the switch from physical abuse and personnel from contact with exposed terminals
Plastic Thermal Enclosures
Description 5PA1 5PA2 5PA3
Description Plastic terminal enclosure used with
solder terminal switches
Plastic terminal enclosure use with
screw terminal switches
Plastic terminal enclosure used with
either solder or screw terminal switches
with auxiliary actuators assembled
Housing material plastic plastic plastic
Measurements 52,8 mm W x 16,1 mm H
[2.08 in W x 0.64 in H]
52,8 mm W x 20,2 mm H x 21,0 mm D
[2.08 in W x 0.80 in H x 0.83 in D]
52,8 mm W x 20,2 mm H x 21,0 mm D
[2.08 in W x 0.80 in H x 0.83 in D]
Sealing/Features NEMA 1, IP 40; easy to use; screw and solder terminal versions; protect personnel from contact with exposed terminals