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Series M Military QPL Rotary Selector Switches
NOTE TO OUR OVERSEAS CUSTOMERS: All Janco rotary selector switches on our site are designated EAR99, which means they can be shipped to most destinations under most circumstances, under the designation "NLR" (No License Required), according to the US Bureau of Industry and Security.
 Series 4M  30° Indexing
 Series 4M  36° Indexing
 Series 4M  45° Indexing
 Series 4M  60° Indexing
 Series 4M  90° Indexing
 Series 13M  30° Indexing
 Series 13M  36° Indexing
 Series 13M  45° Indexing
Series 4M  30° Indexing
Designed to meet or exceed the requirements of MILS3786/4 and listed on QPL
All switches represented by this drawing conform to MILS3786/4: Temp life characteristic "C", vibration grade "3", shock "H", altitude "C".
Switches feature totally enclosed, explosion proof, unitized construction.
No. of Positions 
12 Positions
1 Pole Per Deck
6 Positions
2 Poles Per Deck
4 Positions
3 Poles Per Deck
3 Positions
4 Poles Per Deck
2 Positions
6 Poles Per Deck 
Electrical Rating: 
Continuous 10 amps at 28 v dc 
Make and Break: (10,000 cycles) 
2 amps res. 115 v ac
1.25 amps res. 28 v dc 
Torque: 
1 thru 5 decks  3 in. lbs. max.
6 thru 12 decks  5 in. lbs. max. 
Altitude: 
to 70,000 feet 
Temperature Range: 
65^{o}C to +125^{o}C 
Length: 
1.00 in. max for 1 deck switch
add .35 in. max. for each additional deck 
Weight: 
.12 lb. max. for 1 deck switch
add .03 lb. for each additional deck 
Notes: 
NO. OF POSITIONS:
212: 1 Pole per deck
26: 2 Poles per deck
24: 3 Poles per deck
23: 4 Poles per deck
2: 6 Poles per deck
NONSHORTING CONTACTS:
Break before make
SHORTING CONTACTS:
Make before break
1 pole per deck, 12 positions, may have stops or be continuous rotation. All other switches will have stops.
All multipole switches will have common terminals identified A, B, C, etc. Add letter "D" to P/N Code for deck identification on single pole construction switches. Letter to be adjacent to common terminals. 

Series 4M  36° Indexing
Designed to meet or exceed the requirements of MILS3786/4 and listed on QPL
All switches represented by this drawing conform to MILS3786/4: Temp life characteristic "C", vibration grade "3", shock "H", altitude "C".
Switches feature totally enclosed, explosion proof, unitized construction.
No. of Positions 
10 Positions
1 Pole Per Deck
5 Positions
2 Poles Per Deck 
Electrical Rating: 
Continuous 10 amps at 28 v dc 
Make and Break: (10,000 cycles) 
5 amps res. 115 v ac
3 amps res. 28 v dc
2 amps res. 28 v dc 
Torque: 
1 thru 5 decks  3 in. lbs. max.
6 thru 12 decks  5 in. lbs. max. 
Altitude: 
to 70,000 feet 
Temperature Range: 
65^{o}C to +125^{o}C 
Length: 
1.00 in. max for 1 deck switch
add .35 in. max. for each additional deck 
Weight: 
.12 lb. max. for 1 deck switch
add .03 lb. for each additional deck 
Notes: 
NO. OF POSITIONS:
210: 1 Pole per deck
25: 2 Poles per deck
NONSHORTING CONTACTS:
Break before make
SHORTING CONTACTS:
Make before break
1 pole per deck, 10 positions, may have stops or be continuous rotation. All other switches will have stops.
All multipole switches will have common terminals identified A, B, C, etc. Add letter "D" to P/N Code for deck identification on single pole construction switches. Letter to be adjacent to common terminals. 

Series 4M  45° Indexing
Designed to meet or exceed the requirements of MILS3786/4 and listed on QPL
All switches represented by this drawing conform to MILS3786/4: Temp life characteristic "C", vibration grade "3", shock "H", altitude "C".
Switches feature totally enclosed, explosion proof, unitized construction.
No. of Positions 
8 Positions
1 Pole Per Deck
4 Positions
2 Poles Per Deck 
Electrical Rating: 
Continuous 10 amps at 28 v dc 
Make and Break: (10,000 cycles) 
5 amps res. 115 v ac
5 amps res. 28 v dc
2.8 amps res. 28 v dc 
Torque: 
1 thru 5 decks  4 in. lbs. max.
6 thru 12 decks  8 in. lbs. max. 
Altitude: 
to 70,000 feet 
Temperature Range: 
65^{o}C to +125^{o}C 
Length: 
1.06 in. max for 1 deck switch
add .410 in. max. for each additional deck 
Weight: 
.13 lb. max. for 1 deck switch
add .04 lb. for each additional deck 
Notes: 
NO. OF POSITIONS:
28: 1 Pole per deck
24: 2 Poles per deck
NONSHORTING CONTACTS:
Break before make
SHORTING CONTACTS:
Make before break
1 pole per deck, 8 positions, may have stops or be continuous rotation. All other switches will have stops.
All multipole switches will have common terminals identified A, B, C, etc. Add letter "D" to P/N Code for deck identification on single pole construction switches. Letter to be adjacent to common terminals. 

Series 4M  60° Indexing
Designed to meet or exceed the requirements of MILS3786/4 and listed on QPL
All switches represented by this drawing conform to MILS3786/4: Temp life characteristic "C", vibration grade "3", shock "H", altitude "C".
Switches feature totally enclosed, explosion proof, unitized construction.
No. of Positions 
6 Positions
1 Pole Per Deck 
Electrical Rating: 
Continuous 10 amps at 28 v dc 
Make and Break: (10,000 cycles) 
5 amps res. 115 v ac
3 amps res. 28 v dc
2 amps res. 28 v dc 
Torque: 
1 thru 5 decks  4 in. lbs. max.
6 thru 12 decks  7 in. lbs. max. 
Altitude: 
to 70,000 feet 
Temperature Range: 
65^{o}C to +125^{o}C 
Length: 
1.03 in. max for 1 deck switch
add .35 in. max. for each additional deck 
Weight: 
.13 lb. max. for 1 deck switch
add .03 lb. for each additional deck 
Notes: 
NO. OF POSITIONS:
26: 1 Pole per deck
NONSHORTING CONTACTS:
Break before make
SHORTING CONTACTS:
Make before break
1 pole per deck, 6 positions, may have stops or be continuous rotation. All other switches will have stops.
Add letter "D" to P/N Code for deck identification on single pole construction switches. Letter to be adjacent to common terminals. 

Series 4M  90° Indexing
Designed to meet or exceed the requirements of MILS3786/4 and listed on QPL
All switches represented by this drawing conform to MILS3786/4: Temp life characteristic "C", vibration grade "3", shock "H", altitude "C".
Switches feature totally enclosed, explosion proof, unitized construction.
No. of Positions 
4 Positions
1 Pole Per Deck 
Electrical Rating: 
Continuous 10 amps at 28 v dc 
Make and Break: (10,000 cycles) 
5 amps res. 115 v ac
5 amps res. 28 v dc
2.5 amps res. 28 v dc 
Torque: 
1 thru 5 decks  4 in. lbs. max.
6 thru 12 decks  6 in. lbs. max. 
Altitude: 
to 70,000 feet 
Temperature Range: 
65^{o}C to +125^{o}C 
Length: 
1.06 in. max for 1 deck switch
add .410 in. max. for each additional deck 
Weight: 
.13 lb. max. for 1 deck switch
add .04 lb. for each additional deck 
Notes: 
NO. OF POSITIONS:
24: 1 Pole per deck
NONSHORTING CONTACTS:
Break before make
SHORTING CONTACTS:
Make before break
1 pole per deck, 4 positions, may have stops or be continuous rotation. All other switches will have stops.
All multipole switches will have common terminals identified A, B, C, etc. Add letter "D" to P/N Code for deck identification on single pole construction switches. Letter to be adjacent to common terminals. 

Series 13M  30° Indexing
Designed to meet or exceed the requirements of MILS3786/4 and listed on QPL
All switches represented by this drawing conform to MILS3786/4: Temp life characteristic "C", vibration grade "3", shock "H", altitude "C".
Switches feature totally enclosed, explosion proof, unitized construction.
No. of Positions 
12 Positions
1 Pole Per Deck
6 Positions
2 Poles Per Deck
4 Positions
3 Poles Per Deck 
Electrical Rating: 
Continuous 10 amps at 28 v dc 
Make and Break: (10,000 cycles) 
.25 amps res. 115 v ac
.25 amps res. 28 v dc
.12 amps res. 28 v dc 
Torque: 
1 thru 5 decks  12 in. ozs. max.
6 thru 12 decks  16 in. ozs. max. 
Altitude: 
to 70,000 feet 
Temperature Range: 
65^{o}C to +125^{o}C 
Length: 
.65 in. max for 1 deck switch
add .275 in. max. for each additional deck 
Weight: 
13 grams max. for 1 deck switch
add 3 grams for each additional deck 
Notes: 
NO. OF POSITIONS:
212: 1 Pole per deck
26: 2 Poles per deck
24: 3 Poles per deck
NONSHORTING CONTACTS:
Break before make
SHORTING CONTACTS:
Make before break
1 pole per deck, 12 positions, may have stops or be continuous rotation. All other switches will have stops.
If required decks will be identified A, B, C, etc. in line with locating pin. 

Series 13M  36° Indexing
Designed to meet or exceed the requirements of MILS3786/4 and listed on QPL
All switches represented by this drawing conform to MILS3786/4: Temp life characteristic "C", vibration grade "3", shock "H", altitude "C".
Switches feature totally enclosed, explosion proof, unitized construction.
No. of Positions 
10 Positions
1 Pole Per Deck
5 Positions
2 Poles Per Deck 
Electrical Rating: 
Continuous 10 amps at 28 v dc 
Make and Break: (10,000 cycles) 
.25 amp res. 115 v ac
.25 amp res. 28 v dc
.12 amp res. 28 v dc 
Torque: 
1 thru 5 decks  12 in. ozs. max.
6 thru 12 decks  16 in. ozs. max. 
Altitude: 
to 70,000 feet 
Temperature Range: 
65^{o}C to +125^{o}C 
Length: 
.65 in. max for 1 deck switch
add .275 in. max. for each additional deck 
Weight: 
13 grams. max. for 1 deck switch
add 3 grams for each additional deck 
Notes: 
NO. OF POSITIONS:
210: 1 Pole per deck
25: 2 Poles per deck
NONSHORTING CONTACTS:
Break before make
SHORTING CONTACTS:
Make before break
1 pole per deck, 10 positions, may have stops or be continuous rotation. All other switches will have stops.
If required decks will be identified A, B, C, etc. in line with locating pin. 

Series 13M  45° Indexing
Designed to meet or exceed the requirements of MILS3786/4 and listed on QPL
All switches represented by this drawing conform to MILS3786/4: Temp life characteristic "C", vibration grade "3", shock "H", altitude "C".
Switches feature totally enclosed, explosion proof, unitized construction.
No. of Positions 
8 Positions
1 Pole Per Deck
4 Positions
2 Poles Per Deck 
Electrical Rating: 
Continuous 8 amps at 28 v dc 
Make and Break: (10,000 cycles) 
.25 amp res. 115 v ac
.25 amp res. 28 v dc
.12 amp res. 28 v dc 
Torque: 
1 thru 5 decks  12 in. ozs. max.
6 thru 12 decks  16 in. ozs. max. 
Altitude: 
to 70,000 feet 
Temperature Range: 
65^{o}C to +125^{o}C 
Length: 
.65 in. max for 1 deck switch
add .275 in. max. for each additional deck 
Weight: 
13 grams max. for 1 deck switch
add 3 grams for each additional deck 
Notes: 
NO. OF POSITIONS:
28: 1 Pole per deck
24: 2 Poles per deck
NONSHORTING CONTACTS:
Break before make
SHORTING CONTACTS:
Make before break
1 pole per deck, 8 positions, may have stops or be continuous rotation. All other switches will have stops.
If required decks will be identified A, B, C, etc. in line with locating pin. 










