O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
MICRO SWITCH™ Premium Large Basic Switches
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
ORDER GUIDE BY ASCENDING ELECTRICAL CAPABILITY
P.T.
max.
mm
[in]
O.T.
min.
mm
[in]
R.F.
min.
N [ oz]
Catalog
Listing
Recommended
For
O.F.
N [oz]
D.T.
mm [in]
O.P.***
mm [in]
1 A
P
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
0,13
0,01 to 0,05
15,88
[0.625]
Applications requiring
gold alloy contacts
BZ-2R72-A2**
[0.015] [0.005] [0.0004 to 0.0020]
Gold alloy contacts
BZ-2R725551-A2 Dustproof and splash
1 A
P
2,22 to 4,17
[8 to 15]
1,11
[4]
0,13
0,01 to 0,06
15,88
[0.625]
–
[0.005] [0.0004 to 0.0025]
resistant seal
Operating in temp. to
204 °C [400 °F] for
100 hours
5 A
B
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
0,13
0,01 to 0,05
15,88
[0.625]
BZ-2R244-A2
BZ/BA type
BZ/BA Type
[0.015] [0.005] [0.0004 to 0.0020]
0,30 0,13 0,005 to 0,013
[0.012] [0.005] [0.0002 to 0.0005]
0,38 0,13 0,01 to 0,05
[0.015] [0.005] [0.0004 to 0.0020]
0,38 0,13 0,01 to 0,05
[0.015] [0.005] [0.0004 to 0.0020]
0,38 0,13 0,01 to 0,05
[0.015] [0.005] [0.0004 to 0.0020]
0,30 0,13 0,005 to 0,008
10 A
C
1,11
[4]
0,7
[2.5]
15,88
[0.625]
BZ-R21-A2
BZ-2R-A2
WZ-2R-A2
YZ-2R-A2
BZ-R-A2
Lower force
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
15,88
[0.625]
Most applications
SPDT
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
15,88
[0.625]
SPST (normally
closed)
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
15,88
[0.625]
SPST (normally open)
Less differential travel
15 A
D
1,95 to 2.5
[7 to 9]
1,11
[4]
15,88
[0.625]
[0.012] [0.005] [0.0002 to 0.0003]
0,13
to 0,2
[0.005
to
15 A
D
1,95 to 3,34
[7 to 12]
1,11
[4]
0,30
[0.012]
0,005 to 0,02
[0.0002 to 0.0008]
16,26
[0.640]
BZ-R19-A2
Best repeatability
0.008]
Sealed type
Sealed type
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
0,38
0,13
0,01 to 0,05
15,88
[0.625]
Operating in temp. to
121 °C [250 °F]
BZ-2R24-A2
[0.015] [0.005] [0.0004 to 0.0020]
0,38 0,13 0,01 to 0,05
[0.015] [0.005] [0.0004 to 0.0020]
0,38 0,13 0,01 to 0,05
[0.015] [0.005] [0.0004 to 0.0020]
BZ-2RT04
(M8805/1-004)
15 A
A
2,5 to 3,61
[9 to 13]
1,67
[6]
15,88
[0.625]
MIL-PRF-8805 appli-
cation requirements
15 A
A
2,5 to 3,61
[9 to 13]
1,11
[4]
15,88
[0.625]
Stability under
varying humidity
BZ-2R05-A2
15 A
A
2,5 to 4,17
[9 to 15]
1,11
[4]
0,13
0,01 to 0,06
15,88
[0.625]
Dustproof and splash
resistant seal
BZ-2R5551-A2
–
[0.005] [0.0004 to 0.0025]
Sealed construction.
Stainless steel internal
snapspring
15 A
A
2,5 to 4,17
[9 to 15]
1,11
[4]
0,13 0,01 to 0,06
[0.005] [0.0004 to 0.0025]
15,88
[0.625]
BZ-2R55-A2-S
–
20 A
G
3,89 to 6,12
[14 to 22]
2,78
[10]
1,27
0,25
0,05 to 0,19
[0.0020 to 0.0075]
16,26
[0.640]
BA-2R-A2
BA-2R24-A2
BM-1R-A2
BE-2R-A4
Up to 20 ampere load
[0.050] [0.10]
1,27 0,25
[0.050] [0.10]
0,38 0,13
BA/BE type
20 A
G
3,89 to 6,12
[14 to 22]
2,78
[10]
0,05 to 0,19
[0.0020 to 0.0075]
16,26
[0.640]
Operating in temp. to
121 °C [250 °F]
22 A
F
1,95 to 2,78
[7 to 10]
1,11
[4]
0,013 to 0,025
15,88
[0.625]
Up to 22 ampere load
[0.015] [0.005] [0.0005 to 0.0010]
25 A
H
3,89 to 6,12
[14 to 22]
2,78
[10]
1,27
[0.050] [0.10]
0,25
0,05 to 0,19
[0.0020 to 0.0075]
16,26
[0.640]
Up to 25 ampere load,
#8 screw terminals
1,95 to 2,5
[7 to 9]
0,56 to 2,78*
[2 to 10]
0,13
0,30
15 A
E
[0.005]
[0.012]
0,38*
15,88
[0.625]
Manual reset, solder
terminals
BZ-RX
–
–
–
Manual Reset
–
0.015]
0,25
0,20
[0.008]
–
Manual reset
SPST-NC, #8 screw
terminals
20 A
W
5,56 [20]
6,95 [25]*
16,26 [0.64]
27,9*[1.10]
WA-1RX-A4
–
[0.010]
–
* Reset characteristics
** -A2 is supplied with #6 terminal screws
sensing.honeywell.com
7
*** Except where stated, ±±,ꢀ3 mm ꢁ±±ꢂ±.0 inꢃ