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Part Number

Part Number:
NSN:
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Item Name:
SWITCH , STEPPING

Definition:

AN ELECTROMAGNETICALLY ACTUATED SWITCH HAVING CONTACT WIPERS WHICH ARE SUCCESSIVELY ROTATED OVER FIXED BANK CONTACTS. THE CONTACT WIPERS ARE PROGRESSIVELY ADVANCED OVER THE FIXED BANK CONTACTS THROUGH A REPETITIVE SERIES OF STEPPING OPERATIONS. THE STEPPING OPERATION MAY BE A CONTINUOUS FORWARD ROTATION ACTING THROUGH 360 DEGREES TO RETURN TO ITS NORMAL UNOPERATED POSITION OR IT MAY BE DESIGNED TO INCLUDE AN ELECTROMAGNETIC AND/OR MECHANICAL MEANS FOR RELEASING AND RESETTING THE SWITCH TO ITS RELEASED POSITION FOR A SUBSEQUENT OPERATION. THE CONTACT WIPERS MAY BE MECHANICALLY HELD IN CONTACT WITH THE FIXED BANK CONTACTS AFTER THE ARMATURE OF THE ACTUATING COIL HAS RELEASED. THE SWITCH MAY BE RELEASED AT THE END OF ITS TRAVEL OR AT ANY INTERMEDIATE POSITION. IT INCLUDES ITEMS DESIGNED WITH TWO ELECTROMAGNETIC ACTUATORS THAT ENABLE THE SWITCH TO OPERATE IN EITHER DIRECTION. FOR ITEMS HAVING THE DUAL FUNCTION OF A SWITCH AND A RELAY ASSEMBLED TOGETHER ON A COMMON MOUNTING, SEE RELAY-SWITCH. FOR OTHER THAN ELECTROMAGNETICALLY ACTUATED SWITCHES WHOSE CONTACT WIPERS ARE MANUALLY ROTATED OVER FIXED BANK CONTACTS, SEE SWITCH, ROTARY. EXCLUDES RELAY, ROTARY AND SWITCH, TELEPHONE (AS MODIFIED).

CAGE Information

Code Company
18876 U S ARMY AVIATION AND MISSILE COMMAN

Federal Supply Class

Title

SWITCHES

Inclusions:

INCLUDES ROTARY, KNIFE, TOGGLE, PUSH BUTTON, MERCURY, THERMOSTATIC, AND DIFFERENTIAL PRESSURE SWITCHES.

Exclusions:

EXCLUDES SWITCHGEAR.

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
APAA CONTACT CURRENT RATING 100.0 MILLIAMPERES
APCC ELECTRICAL RESISTANCE 20.0 OHMS NOMINAL
AGAV END ITEM IDENTIFICATION 1440-01-087-9844 LAUNCHING STATION
PRMT PRECIOUS MATERIAL GOLD
ABHP OVERALL LENGTH 5.468 INCHES NOMINAL
APAF MAGNETIC COIL QUANTITY 1
AKCV DRIVE TYPE DIRECT
ACDC CURRENT TYPE DC
APAC BRIDGING LEVEL QUANTITY 2
APAD NONBRIDGING LEVEL QUANTITY 10
ABKW OVERALL HEIGHT 4.562 INCHES NOMINAL
PMLC PRECIOUS MATERIAL AND LOCATION CONTACT SURFACES GOLD
APCE AUXILIARY INTERRUPTER CONTACT ARRANGEMENT 2C
ANZY CONTACT QUANTITY PER BANK LEVEL 11
AMSE VOLTAGE RATING 30.0 VOLTS NOMINAL
ANZZ WIPER CONTACT QUANTITY PER BANK LEVEL 10
ADJH MOUNTING METHOD STUD
ANZX BANK LEVEL QUANTITY 12
APCJ STEPPING DIRECTION UNIDIRECTIONAL
ABMK OVERALL WIDTH 4.468 INCHES NOMINAL
APAG COIL TYPE DRIVE
APAM OPERATING CURRENT RATING 1.7 AMPERES MAXIMUM
APAB CONTACT TYPE BRIDGING AND NONBRIDGING
ALGC MOUNTING CONFIGURATION FOUR 0.164-32 THD STUDS ON 4.500 IN. BY 3.500 IN. MTG CENTERS
APCD AUXILIARY OFF-NORMAL CONTACT ARRANGEMENT 1C
AMWH CONTROL METHOD SELF

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