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Sensing and Control
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Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, IL 61032
www.honeywell.com/sensing
Position Sensors
High Temperature Hermetically Sealed Switches
HR Series
FEATURES
Enclosure seal: Sealed per MIL-
S-8805, enclosure design Symbol 5*
Terminal strength: 15 lbs. (66,7N)
Strength of actuating means: 35 lbs.
(156N)
Strength of mounting bushing: 15 in.
lbs. (1,7Nm)
Vibration: 10 to 58 Hz at .060 in.
(1,52mm) D.A. 58 to 500 Hz at 20 gs
Shock: 100 gs, .006 sec. sawtooth
pulse
Also meets moisture resistance, explo-
sion, and salt spray requirements.
Temperature range: – 85°F to
+600°F
(– 65°C to
+315°C)
Modifications: Receptacle termination
is available. Temperature rating may be
lowered because of receptacle limita-
tions or customer-specified leadwire.
* Watertight test not applicable per MIL-S-8805.
GENERAL INFORMATION
HR switches combine maximum sealing,
high (600°F, 315°C) temperature capabil-
ities, and rugged, heavy duty, corrosion-
resistant construction to provide reliable
switching in the most demanding appli-
cations.
MOUNTING
Plunger actuator switches bushing
mount through
3
⁄
4
inch (19,1mm) diameter
holes. Lock washer, keying washer, and
wire lock hexagon mounting nuts lock the
switches in their mounting.
15
ELECTRICAL RATING
MS24594-1 ratings apply when MIL-S-8805/41
is invoked.
Amperage
Voltage
28 DC
Ind.
2
Res.
5
CIRCUITRY
One Single-Pole
Double-Throw Circuit
Rotary actuator switches mount through
⁄
32
inch (11,9mm) diameter holes. A lock
washer, wire lock hexagon nut, and locat-
ing pins on the top of the housing prevent
switch rotation.
ACTUATORS
Plunger
For in-line actuation. An ice scraper ring
clears the actuator with each operation.
Material is stainless steel.
Two Single-Pole
Double-Throw Circuits
Position Sensors
Roller plunger
For cam and slide actuation not to exceed
20° rise. Roller adjusts laterally in 45° in-
crements. An ice scraper ring cleans the
actuator with each operation. Material is
stainless steel.
Honeywell Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-416-293-8111 Canada
37
Position Sensors
High Temperature Hermetically Sealed Switches
HR ORDER GUIDE
Characteristics:
O.F. – Operating Force; R.F. – Release Force;
P – Pretravel; O.T. – Overtravel; D.T. – Differential Travel.
.T.
Characteristics
Catalog
Listing
12HR1-S
2
(MS24594-1)
12HR8-6
O.F.
Newtons
lbs.
26,7-53,4
6-12
26,7-53,4
6-12
R.F. min.
Newtons
lbs.
22,2
5
22,2
5
P.T. max.
mm
inches
1,27
.050
1,27
.050
O.T. min.
mm
inches
6,35
.250
6,35
.250
HR Series
Actuator
Plunger
Plunger
Circuitry Terminals
1
(2)SPDT
SPDT
Screw
Leadwire
D.T. max.
mm
inches
0,38
.015
0,38
.015
Weight
g
oz.
127
4.5
284
10
22HR1-S
Roller Plunger
(2)SPDT
Screw
26,7-53,4
6-12
22,2
5
1,27
.050
6,35
.250
0,38
.015
142
5
1
Notes:
Screw terminals are 4-48 NF
×
.188 inch screw with
sems washers. Leadwire terminals are 6 foot
(1,8mm).
2
Meets MIL-S-8805/41 specification.
MOUNTING DIMENSIONS
(For reference only)
12HR1-S
Fig. 1
22HR1-2
Fig. 2
12HR8-6
Fig. 3
41HR1-S
Fig. 4
38
Honeywell Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-416-293-8111 Canada