Indexing
Miniature
Rotary
Selector
Switch
Printed
Circuit
NOTES:
Series
EC
Designed in
accordance with
the requirements
of MIL-S-3786
and 22710.
15°
18°
22°
30°
36°
45°
15°:
2 NUMBER OF POSITIONS: 15 :
18°:
18 :
22°:
22 :
30°:
30 :
36°:
36 :
45°:
45 :
15°
24 Positions
18°
20 Positions
22°
16 Positions
30°
12 Positions
36°
10 Positions
45°
8 Positions
4 For deck identification. decks will be identified
A, B, C, etc. adjacent to common terminal.
3 All terminals will be supplied
regardless of number of positions required.
2-24
2-20
2-16
2-12
2-10
2-8
ELECTRICAL RATING: Continuous 3 amps @ 28 vdc.
MAKE AND BREAK:
.100 amp res. 115 vac
(25,000 CYCLES)
.100 amp res. 28 vdc.
DIELECTRIC STRENGTH: 750 vrms
TORQUE TO ROTATE: 36 in. oz. max.
LENGTH: 1.00 [25,4] for 1 deck switch, add
.280±.015 [7,11 0,38]
.280 .015 [7,11±0,38] for each additional deck
WEIGHT: .12 lb. max. for 1 deck switch,
add .03 lb. for each additional deck.
1 All max. number of positions will be continuous
rotation (no stops). All others will have stops.
P/N CODE:
HOW TO ORDER
*ADD FOR DECK IDENTIFICATION 4
*ADD FOR PANEL SEAL
*ADD FOR SHAFT SEAL
NO. OF POSITIONS 1 2
NO. OF DECKS (9 MAX.)
3
EC 15 A 1-24 S P D
*These options may be omitted or added
to the basic part number and will not
affect the reading of the code.
SWITCH CODE (A or B)
DEGREE OF INDEX (15, 18, 22.5, 30, 36 or 45)
SWITCH SERIES
If unable to use standard code, contact factory for UNIQUE PART NO.
3111 Winona Avenue
Burbank, California 91504
Phone: (818)846-1800
FAX: (818)842-3396
CODE A
TRUTH TABLE
STANDARD CODE
Common "C"
connected
to terminals
CODE B
TRUTH TABLE
BINARY CODE
DIAL POSITION
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
DIAL
Common "C"
connected
to terminals
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
POSITION 16 8 4 2 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
NOTE: For switches with fewer than 24 positions, only the portion ot the
truth table corresponding to the specified number of positions shall apply.
1.00 [25,4] Max. (1 Deck)
1.03 [26,2] Max.
with Panel Seal (1 Deck)
Add .280 .015 [7,11 0,38]
.280±.015 [7,11±0,38]
Max. for each additional deck
.41
[10,41]
.437±.020
.437 .020
[11,10±0,51]
[11,10 0,51]
.437±.020
.437 .020
[11,10±0,51]
[11,10 0,51]
.125
[3,18]
.250
[6,35]
Ø1.365 [[ 34,67] Max.
1.365 [[Ø34,67]
over terminals
Ø1.03 [ 26,2] Max.
1.03 [Ø26,2]
over housing
.375±.015
.375 .015
C Locking Ring
[9,53±0,38]
[9,53 0,38] L
.120±.003
.120 .003
[3,05±0,08]
[3,05 0,08]
DEGREE
OF INDEX
15°
15
18°
18
22.5°
22.5
30°
30 & 45
45°
36°
36
ANGLE "A"
7.5°
7.5
9°
11.25°
11.25
15°
15
36°
36
.888 [22,56]
Ø.250 .002
.250±.002
[Ø6,35 0,05]
6,35±0,05]
[9,53]
.375-32UNEF-2A (3/8-32 Thd.)
[1,85]
.073-72 (1-72 Thds.)
2X MS25082-7 Nut
MS35333-76 Lockwasher
1000-39 Locking Ring
.216 [5,49]
Shaft is shown
in position 1
"A"
Pos. 1
Ø.250
.250
[Ø3,18]
3,18]
Ø.406
.406
[Ø10,31]
10,31]
O-RING PANEL SEAL
.312
Min.
[7,92]
6 or more
Decks
.375
[9,53]
PANEL MOUNTING LAYOUT
NOTE: DIMENSIONS ARE SHOWN IN INCHES AND [mm].
LOCATION OF TERMINALS
15° - 24 POSITIONS
EC15 DECIMAL CODE "A"
21
22
23
24
1
C
2
4
5
20
19 18
17
16
15
14
13
12
11
10
9
(All terminal holes Ø.046 [Ø1,17] min.)
1,17]
18° - 20 POSITIONS
EC18 DECIMAL CODE "A"
18
19
18°
18 TYP.
9°
20
1
C
2
3
4 5
6 7
8
17
16
15 14
22° - 16 POSITIONS
EC22 DECIMAL CODE "A"
13
12
15°
15 TYP.
7.5°
7.5
15°
15
13
12
11
10
9
11.25°
11.25
14
15
16
C
1
2
3
22.5°
22.5 TYP.
11
10
9
8
7
6
5
7
8
18°
18
4
5
6
EC15 BINARY CODE "B"
16
2
EC18 BINARY CODE "B"
16
2
EC22 BINARY CODE "B"
4
8
C
4
C
4
C
1
8
1
8
1
2
30° - 12 POSITIONS
EC30 DECIMAL CODE "A"
10
11
12
C
15°
15
1
2
3
30°
30 TYP.
4
5
6
36°
36 TYP.
9
8
7
18°
18
36° - 10 POSITIONS
EC36 DECIMAL CODE "A"
8
9
10
C
1
2
3
4
7
6
5
15°
15
45° - 8 POSITIONS
EC45 DECIMAL CODE "A"
7
8
5
C
1
4
45°
45 TYP.
2
3
6
EC30 BINARY CODE "B"
8
4
EC36 BINARY CODE "B"
8
EC45 BINARY CODE "B"
C
C
4
C
1
1
2
1
2
2
4
