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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