Basic Switches
B Type Switches Performance Information
ELECTRICAL DATA CHART, cont.
Catalog
Listing
(contact
gap)
BZ-2R
.020 in.
0.50 mm
Amperes
Current
Inrush
Carrying
Capacity
N.C.
Resistive Ckt.
Max.
1
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
30
15
15
15
15
15
15
15
15
15
15
6
0.4
0.2
15
15
15
15
15
15
10
0.6
0.3
15
15
15
15
15
15
15
0.75
0.3
15
15
15
15
30
30
30
4
2
30
30
30
30
30
30
30
6
3
30
30
30
30
15
30
30
7.5
3
30
30
30
30
Voltage
VDC
8
14
30
125
230
VAC
125
250
277
460
VDC
8
14
30
125
250
VAC
125
250
277
460
VDC
8
14
30
125
250
VAC
120
240
277
460
N.O.
Ckt.
15
15
15
4
2
15
15
15
15
15
15
15
6
3
15
15
15
15
5
15
15
7.5
3
15
15
15
15
Motor
N.C.
Ckt.
5
5
5
0.8
0.4
5
5
5
5
5
5
5
1.2
0.6
5
5
5
4
2.5
5
5
1.5
0.6
5
5
5
5
N.O.
Ckt.
2.5
2.5
2.5
0.8
0.4
2.5
2.5
2.5
2.5
2.5
2.5
2.5
1.2
0.6
2.5
2.5
2.5
2.5
3
2.5
2.5
1.5
0.6
2.5
2.5
2.5
2.5
Lamp
N.C.
Ckt.
3
3
3
0.4
0.2
3
3
3
3
3
3
3
0.6
0.3
3
3
3
3
1.5
3
3
0.75
0.3
3
3
3
3
N.O.
Ckt.
1.5
1.5
1.5
0.4
0.2
1.5
1.5
1.5
1.5
1.5
1.5
1.5
0.6
0.3
1.5
1.5
1.5
1.5
15
1.5
1.5
0.75
0.3
1.5
1.5
1.5
1.5
Inductive
2
Sea
50,000
Level
Feet
15
10
5
0.05
0.03
15
15
15
15
15
15
10
0.1
0.05
15
15
15
15
15
15
10
0.4
0.2
15
15
15
15
15
8
2
0.03
0.02
15
15
15
15
15
15
5
0.05
0.03
15
15
15
15
—
15
7.5
0.2
0.1
15
15
15
15
BZ-2R
.020 in.
0,50 mm
BZ-3R
.036 in.
0,91 mm
BZ-3R
.036 in.
0,91 mm
BZ-7R
.070 in.
1,78 mm
BZ-7R
.070 in.
1,78 mm
1 For a 86− F (30−C) max. temperature rise at terminals, not opening or closing the load (at sea level).
2 Data established with a 75% power factor on AC loads.
TEST CONDITIONS
Switch contact life is affected by electrical conditions and other
factors, such as: temperature, humidity, airborne contamina-
tion, vibration, amount and rate of plunger travel, and cycling
Temperature:
Humidity:
AC Cycle Rate:
DC Cycle Rate:
On-off Time:
Power Factor (AC):
Inductance (DC):
Circuit Loading:
Travel Plunger:
Actuation:
Overtravel Force:
rate. Our Evaluation Laboratory tests are conducted using pro-
cedures and practices common to UL and Military Specifica-
tions. The following conditions generally apply.
Room Ambient (70
−
F, 21−C).
Room Ambient (50%).
60 operations/minute.
20 operations/minute.
Equal and compatible with above cycling rates.
Approximately 75%.
MIL-I-81023 Inductor.
One throw only on a SPDT switch during any test procedure. Both throws are evaluated separately.
Full switch travel is used.
Linear motion.
1 to 3 lbs. from spring-loaded actuators.
been extrapolated. For specific switch selection, customers
should evaluate switches under actual application conditions
or by simulating all application conditions and requirements.
The information set forth cannot substitute for the customer’s
own product evaulation. It should never be published by a cus-
tomer as a rating on their product.
MICRO SWITCH believes that with the following voltage and
current values and under the test conditions set forth below
switch life of 100,000 closures, 95% survival can be expected. It
is a starting point for user evaluation and provides guidelines
on the switches identified. Because of the numerous electrical
conditions listed, not every current and voltage level has ac-
tually been tested on every switch and certain figures have
Reference/Index
For application help: call 1-800-537-6945.
Honeywell Sensing and Control
97
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