
Proximity Sensors
973SPT Series
18 mm Diameter Stainless Steel Impact Sensors
3-Wire DC, 2-Wire AC Type
B50
Honeywell MICRO SWITCH Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-800-737-3360 Canada
FEATURES
Spring loaded sleeve absorbs shock on
impact
E-ring grooves allow adjustable switch
travel from 0.25 to 1.00 inch
Stainless steel housing and sensing
face
Designed to meet NEMA 4X, 6P, 13
Detects ferrous metals only
Quick-connect termination
93-132 VAC and 10-30 VDC supply
voltages
Short circuit protection on DC sensors
18 mm diameter threaded sleeve for
mounting flexibility
ORDER GUIDE
Sensor
Sensing
Standard
Package
Range
Sensor
Sw.
Target*
Output
Catalog
Style
mm (in.)*
Type
LED
Freq.
mm (in.)
Type
Listing
18 mm (.71 in.)
136g (4.8 oz)
1,65 (.065)
3-wire
NO
20 Hz
18 (.71)
PNP, N.O.
972SPT-A3P
Shielded
DC
1,65 (.065)
2-wire
NO
20 Hz
18 (.71)
N.O.
973SPT-A5T
Shielded
AC
*Ferrous metals only.
SPECIFICATIONS
AC
DC
Supply Voltage
93-132 VAC
10-30 VDC
Voltage Drop
7.5 V @ 100 mA
1.0 V
Load Current
5-100 mA cont.
200 mA max.
500 mA inrush
Leakage Current
1.7 mA max.
10 A max.
Repeatability
±1%
Operating Frequency, max.
20 Hz
Hysteresis
2 to 20% of sensing distance
Operating Temperature
0 to 70°C (32 to 162°F)
LED
None
Protection
NEMA 4, 4X, 6P, 13
Spring Actuation Force
Initial impact
1/4 pound
Full spring travel
1/2 pound
ACCESSORIES
Catalog Listing*
Description
925SST18
Jam nut accessory
A803000A09M020
4-pin DC Micro standard key, straight, 2m cable
803000A09M050
4-pin DC Micro standard key, straight, 5m cable
803001A09M020
4-pin DC Micro standard key, right angle, 2m cable
803001A09M050
4-pin DC Micro standard key, right angle, 5m cable
8030P1A09M020
4-pin DC Micro standard key, right angle w/LED, 2m cable
8030P1A09M050
4-pin DC Micro standard key, right angle w/LED, 5m cable
703000D02F060
3-pin AC Micro dual slot, straight, 2m cable
703000D02F120
3-pin AC Micro dual slot, straight, 4m cable
703001D02F060
3-pin AC Micro dual slot, right angle, 2m cable
703001D02F120
3-pin AC Micro dual slot, right angle, 4m cable
*High temperature/thermal cycle washdowns may cause loosening of cables to sensor, due to material
incompatibility. Stainless steel or plastic cable nuts are suggested in these applications.
JAM NUT
In some applications, there can be a great
deal of impact force between target and
sensor. Thus, it may be necessary to protect
the threaded sleeve from damage. Sleeve
damage could cause the sensor to bind
within the sleeve, affecting sensor perform-
ance. A specially designed jam nut which
screws onto the end of the 18 mm sleeve
provides the required protection.