Basic Switches
BZ/BA Series
Standard
Characteris tics : O.F. — Operating Force; R.F. — Release Force; P.T.
— Pretravel; O.T. — Overtravel; D.T. — Differential Travel; O.P. —
Operating Position.
ORDER GUIDE by as cending electrical capability
PIN PLUNGER
BZ/BA TYPE
Electrical
Data And
UL Codes newtons newtons
Recommended For Page 46 ounces ounces
O.F.
R.F. min. P.T. max. O.T. min.
D.T.
mm
inches
O.P.**
mm
inches
Catalog
Lis ting
mm
mm
inches
inches
Applications requiring
gold alloy contacts
1 Amp
P
2,5-3,61
9-13
1,11
0,38
0,13
0,01-0,05
.0004-.0020
15,88
.625
BZ-2R72-A2
4
.015
.005
Gold alloy contacts
Dustproof and splash
resistant seal
1 Amp
P
2,22-4,17
8-15
1,11
—
0,13
0,01-0,06
.0004-.0025
15,88
.625
BZ-2R725551-A2
4
—
.005
Operating in temp. to
+400°F (204°C) for
100 hours
5 Amps
B
2,5-3,61
9-13
1,11
4
0,38
.015
0,13
.005
0,01-0,05
.0004-.0020
15,88
.625
BZ-2R244-A2
Lower force
10 Amps
1,11
4
0,7
2.5
0,30
.012
0,13
.005
0,005-0,013
.0002-.0005
15,88
.625
BZ-R21-A2
BZ-2R-A2
WZ-2R-A2
YZ-2R-A2
BZ-R-A2
Dim. Dwg. Fig. 1
C
Most applications
SPDT
15 Amps
2,5-3,61
9-13
1,11
4
0,38
.015
0,13
.005
0,01-0,05
.0004-.0020
15,88
.625
A
SPST (normally
closed)
15 Amps
2,5-3,61
9-13
1,11
4
0,38
.015
0,13
.005
0,01-0,05
.0004-.0020
15,88
.625
A
SPST (normally open)
Less differential travel
Best repeatability
15 Amps
2,5-3,61
9-13
1,11
4
0,38
.015
0,13
.005
0,01-0,05
.0004-.0020
15,88
.625
A
SEALED TYPE
15 Amps
1,95-2,5
7-9
1,11
4
0,30
.012
0,13
.005
0,005-0,008
.0002-.0003
15,88
.625
D
15 Amps
1,95-3,34
7-12
1,11
4
0,30
.012
0,13-0,2
.005-.008 .0002-.0008
0,005-0,02
16,26
.640
BZ-R19-A2
BZ-2R24-A2
D
Operating in temp. to
+250°F (121°C)
15 Amps
2,5-3,61
9-13
1,11
4
0,38
.015
0,13
.005
0,01-0,05
.0004-.0020
15,88
.625
A
Dim. Dwg. Fig. 2
MIL-S-8805 application
requirements
15 Amps
2,5-3,61
9-13
1,67
6
0,38
.015
0,13
.005
0,01-0,05
.0004-.0020
15,88
.625
BZ-2RT04
(8805/1-004)
A
Best stability under
varying humidity
15 Amps
2,5-3,61
9-13
1,11
4
0,38
.015
0,13
.005
0,01-0,05
.0004-.0020
15,88
.625
BZ-2R05-A2
A
Dustproof and splash
resistant seal
15 Amp
A
2,5-4,17
9-15
1,11
4
—
—
0,13
.005
0,01-0,06
.0004-.0025
15,88
.625
BZ-2R5551-A2
BZ-2R55-A2-S
Best service for sealed
construction. Stainless
steel internal snap
spring.
15 Amps
2,5-4,17
9-15
1,11
4
—
—
0,13
.005
0,01-0,06
.0004-.0025
15,88
.625
BA/BE TYPE
A
Up to 20 ampere load
handling
20 Amps
3,89-6,12
14-22
2,78
10
1,27
.050
0,25
.010
0,05-0,19
.0020-.0075
16,26
.640
BA-2R-A2
G
Operating in
temperature to +250°F
(121°C)
20 Amps
3,89-6,12
14-22
2,78
10
1,27
.050
0,25
.010
0,05-0,19
.0020-.0075
16,26
.640
BA-2R24-A2
G
Dim. Dwg. Fig. 3
Up to 22 ampere load
handling
22 Amps
1,95-2,78
7-10
1,11
4
0,38
.015
0,13
.005
0,013-0,025
.0005-.0010
15,88
.625
BM-1R-A2
BE-2R-A4
F
Up to 25 ampere load
handling
25 Amps
3,89-6,12
14-22
2,78
10
1,27
.050
0,25
.010
0,05-0,19
.0020-.0075
16,26
.640
H
Manual reset
15 Amps
1,95-2,5
7-9
0,56-2,78*
2-10
—
—
—
—
0,30
.012
—
0,13
.005
0,38*
.015
—
—
15,88
.625
BZ-RX
(maintained contact)
applications, solder
terminals
E
—
Manual reset SPST-
NC, A4 terminals
20 Amps
5,56
20
6,95*
25
—
—
—
—
—
—
—
—
0,25
.010
—
0,20
.008
—
16,26
.64
27,9*
1.10
WA-1RX-A4
W
—
—
Dim. Dwg. Fig. 4
*Reset characteristics.
Except where stated ** ±0,38mm
±.015 in.
All catalog listings shown are not
necessarily stock items. Stocking
depends on sales experience.
Auxiliary actuators see p. 62-63.
For application help: call1-800-537-6945.
Honeywell Sensing and Control 49
HONEYWELL [ Honeywell ]
