+
-
FED. MFG. CODE 91929
+
REVISIONS
ISSUE
DRAWING
NUMBER
DRAWN
CHECK CHECK
CHECK
RELEASE NO.
REPLACES
PTC/CAD
THIRD ANGLE PROJECTION
SCALE
DO NOT SCALE PRINT
+
WEIGHT
CATALOG LISTING
THIS DRAWING COVERS A PROPRIETARY ITEM AND IS THE PROPERTY OF MICRO SWITCH. A DIVISION OF
HONEYWELL. THIS DRAWING IS NOT TO BE COPIED OR USED WITHOUT THE APPROVAL OF MICRO SWITCH.
+
-
-
-
ONE PLACE (.0) .030
TWO PLACES (.00) .015
THREE PLACES (.000) .005
ANGLES
Honeywell Division
UNLESS OTHERWISE SPECIFIED
TOLERANCES ARE
ANSI Y14.5M-1982 APPLIES
PAGE
.880
.390
.390
38HM27
15
1 OF 1
C S L 21 NOV 03
PR-22227-T
-
38HM27
SWITCH - ASSEMBLY
2:1
38HM27
A
0002202
C S L
21 NOV 03
2D
CMH 21 NOV 03
B
0099314
R K A
02 APR 13
CMH 02 APR 13
.350 .010
.025
5X .145
+.004
-.005
.145
+.004
-.005
.62
1.02
2X .41
2X R .04
12.000 MIN
(.250)
.155 .010
OPERATING
POSITION
& RELEASE
POSITION
NOTES
1 CONTACT HONEYWELL - MICRO SWITCH IF ADDITIONAL INFORMATION
ON LOW ENERGY LOADS IS REQUIRED OR FOR HELP WITH SPECIAL APPLICATION S
2 LIFE RATINGS PER MIL-PRF-8805 REQU IREMENTS. ACTUAL LIFE EXCEEDS
RATED LIFE. CONTACT HONEYWELL - MICRO SWITCH FOR ADDITIONAL DATA
3 - SWITCH IS HERMETICALLY SEALED (M ETAL-TO-METAL, GLASS-TO-METAL)
4 2X NUT, SELF-LOCKING PER MS 2104 2-02
5 MAXIMUM ALLOWABLE ELECTRICAL RESISTANCE TO BE 7.5 m
MEASURED ACROSS SURFACES INDICAT ED
6 GRAIN DIRECTION
7 SEAT LOCKING NUTS AGAINST PLATE AT 2.5 IN/LBS, PER MIL-N-25027
SPECIFICATION DETAILS:
STANDARD:
CONFORMS TO MS27216-5 (MIL-PRF-8805/8)
EXCEPT AS NOTED
DIELECTRIC STRENGTH INSULAT ION RESISTANCE
CONSTRUCTION:
ENCLOSURE DESIGN
CONTACT MATERIAL & CONFIGURATION
CIRCUIT CONFIGURATION
TERMINATION
WEIGHT
EXPOSED METALS
HERMETIC SEAL PER MIL-PRF-8805, SYMBOL 5
SMOOTH SILVER CONTACTS (GOLD PLATED)
LEADWIRES PER
2.5 OZ MAX
CORROSION RESISTANT STAINLESS STEEL
ELECTRICAL CHARACTERISTICS:
ELECTRICAL RATINGS
-SEA LEVEL
-70,000 FEET
DIELECTRIC STRENGTH & INSULATION RES
(BASIC SWITCH)
-BETWEEN TERMINALS AND EXPOSED
NON-CURRENT CARRYING METAL
-BETWEEN TERMINALS OF MUTUALLY
INSULATED CIRCUITS
-BETWEEN ALL UNCONNECTED TERMINALS
OF THE SAME POLE
SWITCH RESISTANCE
RECOMMENDATION FOR USE IN APPL LESS
THAN .5 amps AND/OR 12 volts
VOLTAGE
28 VDC
28 VDC
MECHANICAL CHARACTERISTICS:
OPERATING FORCE
RELEASE FORCE
OVERTRAVEL
MOUNTING STRENGTH
ACTUATOR STRENGTH
LIFE:
MECHENICAL LIFE
ELECTRICAL LIFE AT FULL RATED LOAD
ENVIRONMENTAL:
TEMPERATURE RANGE
ALTITUDE RANGE
SHOCK
VIBRATION
MOISTURE RESISTANCE
THERMAL SHOCK
SALT SPRAY
( 60 Hz FOR 5 SECONDS)
N/A
ACCEPTABLE 1
9 OZ MAX
2 OZ MIN
.030 MIN
N/A
3 LBS APPLIED IN A DIRECTION TO CAUS E
SWITCH ACTUATION
25,000 MIN, PER MIL-PRF-8805/8 2
25,000 MIN, PER MIL-PRF-8805/8 2
-54
SEA LEVEL TO 70,000 FT
PER MIL-PRF-8805 SYMBOL M-100g
PER MIL-PRF-8805 SYMBOL 2 - 10-2000 Hz
& 15g PEAK
PER MIL-PRF-8805
PER MIL-PRF-8805
PER MIL-PRF-8805
RESISTIVE
LOAD
3 AMP
3 AMP
INDUCTIVE
LOAD
1 AMP
1 AMP
CONTACT ARRANGEMENT
S.P.D.T.
(500 VDC
10%)
1000 V Rms, 500 A (MAX LEAKAGE)
1000 Megohm MIN
1000 V Rms, 500 A (MAX LEAKAGE)
1000 Megohm MIN
1000 V Rms, 500 A (MAX LEAKAGE)
1000 Megohm MIN
-B-
6
6
N.C.
C
N.O.
3X NO.22 WIRE LEAD PER
MIL-W-22759/11 MARKED
WITH CIRCUIT IDENT
AND WIRE GAGE (C-22,
NO-22 AND NC-22) PER
MIL-W-5088
2X WASHER .25 OD,
.093 ID X .020 THICK
AT OPERATING POSITION
AT EDGE OF ROLLER
-A-
7 4
5
5
PLATE .62 X .25
X .040 THICK
