NKK MRK403-BH Half-inch diameter process sealed rotary Datasheet

Half-Inch Diameter Process Sealed Rotaries
Series MR
Distinctive Characteristics
Low profile body of MRF model accommodates space limitations
required for PCB mounting. For the MRA and MRK bushing
mount models, the range of behind panel body depths is .323”
to .669” (8.2mm to 17.0mm).
Positive detent mechanism for distinct feel and audible feedback.
Metal bushing and housing construction increases durability.
Adjustable stopper plate allows 2–12 position settings.
High contact reliability achieved by the self-cleaning
contact mechanism.
Break-before-make contact timing with sliding contacts in
MRA and rotary contactor disk in MRF and MRK models.
Interior housing seal and molded-in PC terminals, plus shaft
rubber o-ring on MRF and MRK and polyamide cover on MRF
model, allow cleaning after automated soldering.
Exterior rubber washer and double flatted bushing on MRA and MRK
give protection in splashproof applications.
Actual Size
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
05-08
Half-Inch Diameter Process Sealed Rotaries
Series MR
General Specifications
Electrical Capacity (Resistive Load)
For MRA:
For MRF or MRK:
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Range of Operating Torque:
Contact Timing:
Indexing:
Materials & Finishes
Shaft:
Stopper Plate:
Bushing/Housing:
Movable Contacts:
End Contacts & Terminals:
Common Contacts & Terminals:
Base:
Environmental Data
Operating Temperature Range:
Humidity:
Vibration:
Shock:
Installation
Mounting Torque:
Cap Installation Force:
Processing
Soldering Time & Temperature:
Cleaning:
Standards & Certifications
UL Recognition
or CSA Certification:
250mA @ 125V AC
0.4VA maximum @ 28V AC/DC maximum
(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Note: Find additional explanation of operating range in Supplement section.
10 milliohms maximum for MRA; 50 milliohms maximum for MRF & MRK
100 megohms minimum @ 500V DC
1,000V AC minimum for 1 minute minimum for MRA
500V AC minimum for 1 minute minimum for MRF & MRK
30,000 operations minimum
10,000 operations minimum
0.02 ~ 0.07Nm for MRA; 0.005 ~ 0.02Nm for MRF & MRK
Nonshorting (break-before-make)
MRA – self-cleaning, sliding contact; MRF & MRK – self-cleaning, rotary contactor disk
30°
Brass with nickel plating
Steel with zinc plating for MRA & MRK; polyamide cover with stopper for MRF
Zinc alloy with zinc plating
Copper with silver plating for MRA; phosphor bronze with gold plating for MRF & MRK
Brass with silver plating for MRA; phosphor bronze with gold plating for MRF & MRK
Brass with silver plating for MRA; phosphor bronze with gold plating for MRF & MRK
Diallyl phthalate for MRA; fiberglass reinforced polyamide for MRF & MRK
–10°C through +70°C (+14°F through +158°F)
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range
& returning in 1 minute; 3 right angled directions for 2 hours
50G (490m/s2) acceleration (tested in 3 right angled directions, with 3 shocks in each direction)
.686Nm (6.08 l b • in)
19.6 ~ 29.4N (4.41 ~ 6.61 lbf) for MRA & MRK
Wave Soldering for MRA: See Profile A in Supplement section.
Wave Soldering for MRF & MRK: See Profile B in Supplement section.
Manual Soldering for MRA: See Profile A in Supplement section.
Manual Soldering for MRF & MRK: See Profile B in Supplement section.
Automated cleaning recommended. Stopper plate, as well as washers for MRA & MRK, must be in
place to maintain automated cleaning. See Cleaning specifications in Supplement section.
MRA, MRF, & MRK models have not been tested for UL recognition or CSA certification.
These switches are designed for use in a low-voltage, low-current, logic-level circuit.
When used as intended in a logic-level circuit, the results do not produce hazardous energy.
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
05-08
Series MR
Half-Inch Diameter Process Sealed Rotaries
TYPICAL SWITCH ORDERING EXAMPLE
MR
A
206
ACTUATORS & TERMINALS
A
POLES & CIRCUITS
KNOBS
COLORS
A
Shaft Actuated with PC Terminals
112
SP with 2-12 Positions
A
Plain Black
For Plain Knob
F
Low Profile Screwdriver Actuated
with PC Terminals
206
DP with 2-6 Positions
B
Small Color Tipped
4P with 2-3 Positions
C
Large Color Tipped
K
Low Profile Shaft Actuated with
PC Terminals
403
No
Code
Black
For Color Tipped
A
Black
B
White
C
Red
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
E
Yellow
MRA206-A
F
Green
G
Blue
H
Gray
Shaft Actuated with
Plain Black Knob
DP with 2-6
Adjustable Positions
PC Terminals
ACTUATORS & TERMINALS
Shaft Actuated
with PC Terminals
9
12
1
6
4 5
1
12
11
12
2
10
2
(2.3)
.091
(3.15) Dia
.124
(10.0)
.394
Shaft
(3.5)
.138
(0.5)
.020
Thk = (0.25)
.010
Terminal
1C
89
23
10
Low Profile
Shaft Actuated
with PC Terminals
K
7
11
Low Profile
Screwdriver Actuated
with PC Terminals
F
10 11
A
MR
-
12
2
12 11 10
(3.5)
.138
(0.8)
.031
(3.15) Dia
.124
Slotted for
Screwdriver
(1.0)
.039
(0.5)
.020
Thk = (0.25)
.010
Terminal
11
10
9
M R - K 1 1 29
1 C
(2.3)
.091
12 11 10
(3.15) Dia
.124
(3.5)
.138
(10.0)
.394
Shaft
(0.5)
.020
Thk = (0.25)
.010
Terminal
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
05-08
Series MR
Half-Inch Diameter Process Sealed Rotaries
POLES & CIRCUITS
Pole
SP
DP
4P
Model
Number of Positions
Stopper Settings
Number of Terminals
MRA112
2–12
2, 3, 4, . . . 12
1 COM, 12 LOAD
MRF112
2–12
2, 3, 4, . . . 12
1 COM, 12 LOAD
MRK112
2–12
2, 3, 4, . . . 12
1 COM, 12 LOAD
MRA206
2–6
2, 3, 4, 5, 6
2 COM, 12 LOAD
MRF206
2–6
2, 3, 4, 5, 6
2 COM, 12 LOAD
MRK206
2–6
2, 3, 4, 5, 6
2 COM, 12 LOAD
MRA403
2–3
2, 3
4 COM, 12 LOAD
MRF403
2–3
2, 3
4 COM, 12 LOAD
MRK403
2–3
2, 3
4 COM, 12 LOAD
Schematics
A
1
2 3 4 5 6
7 8 9 10 11 12
A
1
B
2 3 4 5 6
A
1
1
2 3 4 5
C
B
2 3 1
2 3
1
6
D
2 3 1
2
3
POSITION SETTING FOR MRA, MRF, & MRK MODELS
Each switch is supplied with the stopper set for the maximum number of positions allowed for that model. Prior to installation,
the desired position setting should be made. Contact factory for continuous rotation.
MRF Models
Protective Cover
1. Remove the protective cover from the switch body.
2. Turn the shaft counterclockwise to the extreme left by using a screwdriver.
3. Inside the cover is a magnifying lens which would be positioned over the
number which is to be the maximum position used; when the cover is then
snapped into the switch, the projection beside the lens fits into the correct
hole for setting the stop.
23
1
12
1C
10 11
2
Projection
89
6
4 5
7
MRK & MRA Models
Lens
MR
-
12 11 10
Standard Mounting Hardware
Packaged Loose with Each Switch:
1. Using the actuator knob, turn the shaft
counterclockwise to the extreme left. If
the shaft is not turned counterclockwise
to the extreme left, proper setting cannot be achieved. At this extreme position, the white line on the knob points
to the number 1 position shown on the
side of the switch.
Hex Face Nut
Locking Ring
Lockwasher
Rubber Ring (MRK)
2. Remove the knob from the shaft and
loosen the nut far enough to allow raising the stopper plate, plus washer(s),
for resetting to the desired position.
Factory Assembled:
3. Note the position numbers on the side
of the switch; these correspond to the
terminal numbers and stopper holes.
Insert the stopper in the hole numbered
for the maximum desired number of
stop settings. Satisfactory switch functioning cannot be assured if the stopper
plate is not properly positioned.
Metal Washer (MRA)
Hex Nut
Stopper Plate
Rubber Washer
12
2
11
10
9
9
12
M R - K 1 1 29
1 C
11
10
12 11 10
2
1
4. Tighten the nut (beveled side up) firmly
against the stopper plate.
12
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
11
10
05-08
Series MR
Half-Inch Diameter Process Sealed Rotaries
TYPICAL SWITCH DIMENSIONS
1 Pole
(3.0) Dia
.118
(3.0) Dia
.118
4
2
C
A
3
1
2
6
3
3
2
3
5
1
5
6
7
8
4
2
1
B
D
2
5
6 A
1
4
2
(3.0) Dia
.118
3
B
3
9
10 11
12 A
1
4 Pole
1
(0.8) Dia Typ
.031
M6 P0.75
2 Pole
3
MRA • PC Terminals 2
1
(2.3)
.091
Keyway
(1.0)
.039
(3.15) Dia
.124
(6.0)
.236
(10.0)
.394
(16.0) Dia
.630
(17.0)
.669
(5.0)
.197
p
30° Ty
(9.5) Dia
.374
(10.0)
.394
30° Ty
(9.5) Dia
.374
p
30° Ty
(9.5) Dia
.374
p
MRA112
MRF • PC Terminals
(0.8)
.031
1 Pole
4 Pole
(0.25) Typ
.010
Cover
D
4
21
9
1 10
5
3
3
A
2 1
6
3
21
21
C
A
2 1
A
Ty p
yp
15ϒ T
yp
15ϒ T
(12.6) Dia
.496
1
12 1 2
(12.6) Dia
.496
30ϒ
21
15ϒ
B
2 1
3
3
4
3
(8.2)
.323
(14.0) Dia
.551
B
2 1
5
5
4
9 10 11
(0.5) Typ
.020
(3.5)
.138
(4.2)
.165
3
6
6
30ϒ
7
30ϒ
8
(12.0) Dia
.472
ϒ
15
ϒ
15
ϒ
15
6 7 8
3 4 5
2 Pole
(12.6) Dia
.496
MRF403
1 Pole
3
4
D
2 1
9
1 10
5
3
6
3
21
3
1 A
A
2 1
A
2 1
Ty p
yp
15ϒ T
1
(12.6) Dia
.496
(3.5)
.138
Typ
15ϒ
15ϒ
B
2 1
C
2 1
(10.1)
.398
(5.5)
.217
3
4
3
(10.0)
.394
5
4
(0.5) Typ
.020
(3.15) Dia
.124
B
2 1
6
5
(2.3)
.091
Keyway
6
30ϒ
7
30ϒ
8
(12.0) Dia
.472
4 Pole
ϒ
15
ϒ
15
(0.25) Typ
.010
M6 P0.75
2 Pole
32
MRK • PC Terminals
yp
15ϒ T
(12.6) Dia
.496
(12.6) Dia
.496
MRK devices are designed to be panel mounted. Installation without panel mounting will affect reliability.
MRK112
FOOTPRINTS
9
4
A
11
3
2
30
1
ϒ Ty p
(9.5) Dia
.374
12
1
6
4
4
A
5
3
30
1
ϒ Ty p
(9.5) Dia
.374
6
(1.0) Dia Typ
.039
1
3
3
B
2
(1.0) Dia Typ
.039
2
5
2
90ϒ
10
(3.0) Typ
.118
1
(3.0) Typ
.118
2
3
B
C
A
1
D
3
2
1
30ϒ
Ty p
2
Double Pole
MRF206
MRK206
Single Pole
MRF112
MRK112
(9.5) Dia
.374
7
6
5
8
B
9
10
4
3
3
(1.0) Dia Typ
.039
(0.8) Dia Typ
.031
15
11
12
(12.0) Dia
.472
6
p
(0.8) Dia Typ
.031
2
3
5
4
4
3
2 1 A
ϒ Ty
1
15
6
2 1 A
ϒ Ty
p
Four Pole
MRF403
MRK403
5
(12.0) Dia
.472
B
15ϒTy
p
8
Four Pole
MRA403
30ϒTy
p
(3.0) Typ
.118
180ϒ
7
6
5
Double Pole
MRA206
30ϒTy
p
Single Pole
MRA112
2
1
C
3
(0.8) Dia Typ
.031
1
2
3
D
1
2
(12.0) Dia
.472
3
3
15
2 1 A
ϒ Ty p
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
05-08
Series MR
Half-Inch Diameter Process Sealed Rotaries
KNOBS
A
AT433
Plain Black
Material:
Polyacetal
Color:
Black
only
AT4103 Small
Color Tipped
B
Base Material:
Polyester
Base Color:
Black
(19.0) Dia
.748
(11.0) Dia
.433
(13.0)
.512
Polyamide Tip
Colors:
A, B, C, E, F, G, H
(9.5)
.374
(0.5)
.020
A
Color Codes:
B
Black
C
White
AT4104 Large
Color Tipped
C
Base Material:
Polyester
Base Color:
Black
(16.0) Dia
.630
(9.5) Dia
.374
(14.3)
.563
(18.0) Dia
.709
(11.0) Dia
.433
Polyamide Tip
Colors:
A, B, C, E, F, G, H
(9.5)
.374
(0.5)
.020
(15.8)
.622
(9.5)
.374
(0.5)
.020
E
Red
F
Yellow
Green
G
H
Blue
Gray
PANEL CUTOUTS & MAXIMUM EFFECTIVE PANEL THICKNESS
Nonsealed Panel
With
Keyway
Without
Keyway
(6.35) Dia
.250
(6.5)
.256
With Standard Hardware on Nonsealed Panel:
MRA .067” (1.7mm) MRK .087” (2.2mm)
Sealed Panel
(5.6)
.220
(6.35) Dia
.250
(0.6)
.024
(2.2) Dia
.087
(6.2) Dia
.244
Without Locking Ring on Nonsealed Panel:
MRA .098” (2.5mm) MRK .118” (3.0mm)
(5.4)
.213
With Standard Hardware on Sealed Panel:
MRK .106” (2.7mm)
STANDARD MOUNTING HARDWARE
AT513M
Metric Hexagon Nut
AT507M
Metric Locking Ring
AT509
Lockwasher
AT535
Rubber Ring
Material:
Brass, nickel plating
1 for MRA; 1 for MRK
Material:
Steel, chromate over zinc plating
1 for MRA; 1 for MRK
Material:
Steel, chromate over zinc plating
1 for MRA; 1 for MRK
Material:
Nitrile butadiene rubber
1 for MRK
(6.0) Dia
.236
M6 P0.75
(8.0)
.315
(6.2) Dia
.244
(12.0) Dia
.472
(2.0)
.079
(6.4) Dia (10.2) Dia
.252
.402
(9.4) Dia
.370
(5.5)
.217
(9.0)
.354
(1.5)
.059
(1.7)
.067
(0.5)
.020
(0.8)
.031
(1.3)
.051
OPTIONAL SUPPORT BRACKET
AT543
Support Bracket for MRK
Material:
Steel with tin plating
(18.0)
.709
(18.0)
.709
(17.5)
.689
(14.9)
.587
(3.8) Typ
.150
(0.5) Typ
.020
(14.0)
.551
(0.8) Typ
.031
(17.2)
.677
(1.2) Dia Typ
.047
A support bracket
is needed when
the MRK is mounted
only to a PC board
and does not have
the bushing through
a panel.
NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
05-08
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