Basic Switches
B Type Switches Performance Information
ELECTRICAL DATA CHART, cont.
Ampe re s
Catalog
Lis ting
(contact
gap)
Curre nt
Carrying
Capacity
Inrus h
N.C.
Re s is tive Ckt.
Motor
Lamp
Inductive 2
N.O.
Ckt.
N.C.
Ckt.
N.O.
Ckt.
N.C.
Ckt.
N.O.
Ckt.
Se a
Le ve l
50,000
Fe e t
Voltage Max.1
VDC
8
14
30
125
230
BZ-2R
.020 in.
0.50 mm
15
15
15
15
15
15
15
6
0.4
0.2
30
30
30
4
15
15
15
4
5
5
5
0.8
0.4
2.5
2.5
2.5
0.8
0.4
3
3
3
0.4
0.2
1.5
1.5
1.5
0.4
0.2
15
10
5
0.05
0.03
15
8
2
0.03
0.02
2
2
VAC
125
250
277
460
BZ-2R
.020 in.
0,50 mm
15
15
15
15
15
15
15
15
30
30
30
30
15
15
15
15
5
5
5
5
2.5
2.5
2.5
2.5
3
3
3
3
1.5
1.5
1.5
1.5
15
15
15
15
15
15
15
15
VDC
8
14
30
125
250
BZ-3R
.036 in.
0,91 mm
15
15
15
15
15
15
15
10
0.6
0.3
30
30
30
6
15
15
15
6
5
5
5
1.2
0.6
2.5
2.5
2.5
1.2
0.6
3
3
3
0.6
0.3
1.5
1.5
1.5
0.6
0.3
15
15
10
0.1
0.05
15
15
5
0.05
0.03
3
3
VAC
125
250
277
460
BZ-3R
.036 in.
0,91 mm
15
15
15
15
15
15
15
15
30
30
30
30
15
15
15
15
5
5
5
4
2.5
2.5
2.5
2.5
3
3
3
3
1.5
1.5
1.5
1.5
15
15
15
15
15
15
15
15
VDC
8
14
30
125
250
BZ-7R
.070 in.
1,78 mm
30
15
15
15
15
15
15
15
0.75
0.3
15
30
30
7.5
3
5
2.5
5
5
1.5
0.6
3
1.5
3
3
0.75
0.3
15
15
15
10
0.4
0.2
—
15
7.5
0.2
0.1
15
15
7.5
3
2.5
2.5
1.5
0.6
1.5
1.5
0.75
0.3
VAC
120
240
277
460
BZ-7R
.070 in.
1,78 mm
15
15
15
15
15
15
15
15
30
30
30
30
15
15
15
15
5
5
5
5
2.5
2.5
2.5
2.5
3
3
3
3
1.5
1.5
1.5
1.5
15
15
15
15
15
15
15
15
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
rate. Our Evaluation Laboratory tests are conducted using pro-
cedures and practices common to UL and Military Specifica-
tions. The following conditions generally apply.
Temperature:
Humidity:
AC Cycle Rate:
DC Cycle Rate:
On-off Time:
Room Ambient (70−F, 21 − C).
Room Ambient (50%).
60 operations/minute.
20 operations/minute.
Equal and compatible with above cycling rates.
Power Factor (AC): Approximately 75%.
Inductance (DC):
Circuit Loading:
Travel Plunger:
Actuation:
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.
Overtravel Force:
1 to 3 lbs. from spring-loaded actuators.
MICRO SWITCH believes that with the following voltage and
current values and under the test conditions set forth below
switch life of100,000 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
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.
For application help: call1-800-537-6945.
Honeywell Sensing and Control 97
HONEYWELL [ Honeywell ]
