Miniature Power Level Rotaries
Series MR
Distinctive Characteristics
Positive detent mechanism for distinct feel and audible feedback. Metal bushing and housing construction increases durability. Adjustable stopper plate allows 2-8 position settings. High contact reliability achieved by the self-cleaning contact mechanism. Break-before-make contact timing with various mechanism types: sliding contacts in MRX, contactor dish in MRY, and butt contacts in MRT models. Terminal types include PC-turret for MRX, turret for MRY, and solder lug for MRT models. Molded-in PC-turret and turret terminals prevent entry of flux and other contaminants.
Actual Size
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Miniature Power Level Rotaries
Series MR
General Specifications
Electrical Capacity (Resistive Load)
For MRX: For MRY: For MRT: 2A @ 125V AC or 1A @ 30V DC For MRY106G: 0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V) Note: See Supplement Index to find explanation of operating range. For all other MRY models: 3A @ 125V AC or 2A @ 30V DC For MRT22: 10A @ 125V AC or 4A @ 30V DC For MRT23: 5A @ 125V AC or 3A @ 30V DC
Other Ratings
Contact Resistance: Insulation Resistance:
Dielectric Strength: Mechanical Life: Electrical Life: Range of Operating Torque: Contact Timing: Indexing:
10 milliohms maximum for MRX, MRY, & MRT; 20 milliohms maximum for MRY106G 100 megohms minimum @ 500V DC for MRX & MRY 200 megohms minimum @ 500V DC for MRT 1,000V AC minimum for 1 minute minimum 15,000 operations minimum 7,500 operations minimum 0.03 ~ 0.15Nm for MRX; 0.02 ~ 0.10Nm for MRY; 0.02 ~ 0.05Nm for MRT Nonshorting (break-before-make) MRX: Self-cleaning, sliding contact; MRY: Rotary contactor dish; MRT: Butt contacts 45° for MRX; 60° for MRY; 120° for MRT22; 60° for MRT23
Materials & Finishes
Shaft: Stopper Plate: Bushing/Housing: Movable Contacts:
End Contacts & Terminals: Common Contacts & Terminals: Base:
Brass with nickel plating Steel with zinc plating for MRX & MRY Brass with nickel plating Silver alloy for MRX & MRT; copper with silver plating for MRY106; copper with gold plating for MRY106G Silver alloy & copper with silver plating for MRX & MRT; silver alloy plus brass with silver plating for MRY106; silver alloy with gold plating for MRY106G Copper with silver plating for MRX, MRY106 & MRT22; brass with gold plating for MRY106G; brass with silver plating for MRT23 Phenolic resin
Environmental Data
Operating Temperature Range: Humidity: Vibration: Shock:
–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)
Installation
Mounting Torque: Cap Installation Force: Soldering Time & Temperature:
.686Nm (6.08 l b • in) 19.6 ~ 29.4N (4.41 ~ 6.61 lbf) Manual Soldering: See Profile A in Supplement section.
Standards & Certifications
UL & C-UL Recognized:
R
MRT22 models recognized at 10A @ 125V AC; MRT23 models recognized at 5A @ 125V AC UL File No. WOYR2.E44145 Add “/U” to end of part number to order UL mark on switch C-UL File No. WOYR8.E44145 Add “/C-UL” to end of part number to order C-UL mark on switch
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Miniature Power Level Rotaries
TYPICAL SWITCH ORDERING EXAMPLE
Series MR
MR
ACTUATORS & TERMINALS
X
108 204 402
108
POLES & CIRCUITS
A
SP with 2-8 Positions DP with 2-4 Positions 4P with 2 Positions
A
KNOBS
Plain Black Small Color Tipped Large Color Tipped B C
COLORS
For Plain Knob No Code A Black
X
Shaft Actuated with PC-Turret Terminals
For Color Tipped Black White Red Yellow Green Blue Gray B C E F G H
Y
Shaft Actuated with Turret Terminals
106 106G
SP with 2-6 Positions SP with 2-6 Positions Gold Contacts 0.4VA
T
Shaft Actuated with Solder Lug Terminals
22 23
DPDT ON-NONE-ON DPDT ON-OFF-ON
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
MRX108-A
IMPORTANT:
MRT switches are supplied without UL marking unless specified. Specific models & ratings are noted on the General Specifications page.
Shaft Actuated with Plain Black Knob SP with 2-8 Adjustable Positions
PC-Turret Terminals
ACTUATORS & TERMINALS X
Shaft Actuated with PC-Turret Terminals
Y
Shaft Actuated with Turret Terminals
T
Shaft Actuated with Solder Lug Terminals
2
1
8
1
(2.3) .091
1
(2.3) .091
6
(2.3) .091 (5.0) .197 (1.3) Dia .051
MR T- 2 2
(3.15) Dia .124
(20.0) .787
(5.0) .197 (0.8) .031 Thk = (0.9) .035
(3.15) Dia .124
(20.0) .787
(3.15) Dia .124
(20.0) .787
(2.0) .079
(4.0) .157
(1.0) .039
(1.0) .039
(1.0) .039
(2.4) .094 (0.9) .035 Thk = (0.7) .028
Shaft
Terminal
Shaft
Terminal
Shaft
Terminal
03-07
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
Miniature Power Level Rotaries
POLES & CIRCUITS
Pole Model MRX108 SP MRY106 MRY106G DP MRX204 2-6 2, 3, 4, 5, 6 1 COM, 6 LOAD Number of Positions 2-8 Stopper Settings 2, 3, 4, 5, 6, 7, 8 Number of Terminals 1 COM, 8 LOAD
Series MR
Schematics
A
1
23456 A
78
1 A
23456 B
2-4
2, 3, 4
2 COM, 8 LOAD
1 2341 234
MRT22 DPDT MRT23
2
ON-NONE-ON
2-3 5-6 2-3 5-6 OPEN OPEN
2-1 5-4 2-1 5-4
A B C D 1 2 (COM) 3 4 5 6
3
ON-OFF-ON
4P
MRX402
2
1&2
4 COM, 8 LOAD
1 2 1 2 1 2 1 2
POSITION SETTING FOR MRX & MRY 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. 1. Using the actuator knob, turn the shaft counterclockwise to the extreme left. If the shaft is not turned to this extreme position where the white line on the knob points to the number 1 position shown on the side of the switch, proper setting cannot be achieved. 2. Remove the knob from the shaft and loosen the nut far enough to allow raising the stopper plate for resetting to the desired position. 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. 4. Tighten the nub (beveled side up) firmly against the stopper plate.
Mounting Hardware Packaged Loose with Each Switch AT513M Hex Face Nut AT507M Locking Ring AT509 Lockwasher Factor y Assembled: Hex Nut Stopper Plate
2
1
8
1
MRX
MRY
1
6
TYPICAL SWITCH DIMENSIONS
MRX • PC-Turret Terminals Single, Double & Four Pole
A5 4
90° Typ
2
(2.3) .091
50 ° Keyway
(3.15) Dia .124
(20.0) .787
(5.6) .220
(17.3) .681
(10.0) .394
MRX108
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07
COM
B1
4
(1.0) .039
(5.0) .197
2
A1
4
3
3
(14.0) Dia .551
B1
2
(0.8) Typ .031
D1
COM
COM 1
8
M6 P0.75
(0.9) Typ .035
22.5°
3
7
(1.5) Typ .059
1
2
C1
45° Typ
6
2 2
(0.5) Typ .020
2
(4.0) Dia .157
Miniature Power Level Rotaries
TYPICAL SWITCH DIMENSIONS
MRY • Turret Terminals
(3.15) Dia .124 M6 P0.75
Series MR
Single Pole
(1.3) Dia Typ .051
4
5
60° Ty
60° Typ
3 4 A 2 1 6 5
p
3
(9.0) Dia .354
A
(2.3) .091
18°
Keyway
(1.0) .039 (20.0) .787 (5.6) .220 (16.9) .665
(5.0) .197 (8.0) .315 (14.0) Dia .551
MRY106
MRT • Solder Lug Terminals
(5.0) .197 (24.0) .945
120°
(2.3) .091
Double Pole
M6 P0.75
(3.15) Dia .124
Keyway
(4.5) .177
4 5 6
MRT22
(13.0) .512
(20.0) .787
(7.5) .295 (8.5) .335
(12.0) .472
P C FOOTPRINTS FOR MRX SINGLE, DOUBLE, & FOUR POLE
° Typ 45
22.5°
° Typ 45
22.5°
Single Pole
4
5
(1.98) Dia .078
A 6 7
Double Pole
4
1
(10.0) Dia .394 (4.5) Dia .177
3 2 8
(10.0) Dia .394 (1.32) Dia Typ .052
A 3 B 2 4
2
(1.98) Dia Typ .078
3
Four Pole
1 2
1
(4.5) Dia .177
1
(1.32) Dia Typ .052
KNOBS A
AT433 Plain Black
(19.0) Dia .748 (11.0) Dia .433 (13.0) .512
B
AT4103 Small Color Tipped
C
(16.0) Dia .630 (9.5) Dia .374
AT4104 Large Color Tipped
Material: Polyacetal Color: Black only
(9.5) .374
(0.5) .020
Base Material: Polyester Base Color: Black Polyamide Tip Colors: A, B, C, E, F, G, H
(14.3) .563
(9.5) .374
(0.5) .020
Base Material: Polyester Base Color: Black Polyamide Tip Colors: A, B, C, E, F, G, H
Color Codes:
A
Black
B
White
C
Red
E
Yellow
F
Green
PANEL CUTOUTS & MAXIMUM EFFECTIVE PANEL THICKNESS
Without Keyway
(6.35) Dia .250 (2.2) Dia .087 (6.5) .256
With Keyway
(6.35) Dia .250
(5.6) .220 (0.6) .024
Maximum Effective Panel Thickness With Standard Hardware: MRX & MRY .095” (2.4mm); MRT .106” (2.7mm) Without Locking Ring: MRX & MRY .126” (3.2mm); MRT .138” (3.5mm)
03-07
N KK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
1
M CO
6
(1.1) x (2.0) Typ .043 x .079
2
(1.85) Dia Typ .073
3
2
1
(4.0) .157
° Typ 45
22.5°
90 °T
(10.0) Dia .394
C 1 B 2
A D 1 2
2
(1.98) Dia Typ .078
1
yp
(4.5) Dia .177
(1.32) Dia Typ .052
(18.0) Dia .709 (11.0) Dia .433
(15.8) .622
(9.5) .374
(0.5) .020
G
Blue
H
Gray
