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| 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: sales@nkkswitches.com * 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: 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. Other Ratings Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Range of Operating Torque: Contact Timing: Indexing: 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 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 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 Environmental Data Operating Temperature Range: Humidity: Vibration: Shock: -10C through +70C (+14F through +158F) 90 ~ 95% humidity for 96 hours @ 40C (104F) 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: .686Nm (6.08 l b *i n) 19.6 ~ 29.4N (4.41 ~ 6.61 lbf) for MRA & MRK Processing Soldering Time & Temperature: Cleaning: 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. Standards & Certifications UL Recognition or CSA Certification: 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: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com 05-08 Half-Inch Diameter Process Sealed Rotaries TYPICAL SWITCH ORDERING EXAMPLE Series MR MR A 206 POLES & CIRCUITS 112 206 403 SP with 2-12 Positions DP with 2-6 Positions 4P with 2-3 Positions A B C A KNOBS Plain Black Small Color Tipped Large Color Tipped ACTUATORS & TERMINALS A F K Shaft Actuated with PC Terminals Low Profile Screwdriver Actuated with PC Terminals Low Profile Shaft Actuated with PC Terminals COLORS For Plain Knob No Code A B C Black For Color Tipped Black White Red Yellow Green Blue Gray DESCRIPTION FOR TYPICAL ORDERING EXAMPLE E F G H MRA206-A Shaft Actuated with Plain Black Knob DP with 2-6 Adjustable Positions PC Terminals ACTUATORS & TERMINALS A Shaft Actuated with PC Terminals F Low Profile Screwdriver Actuated with PC Terminals K Low Profile Shaft Actuated with PC Terminals 12 9 11 10 23 6 45 12 7 89 2 1 12 11 10 (2.3) .091 (3.15) Dia .124 2 (3.5) .138 1C 12 11 10 (10.0) .394 (0.5) .020 Thk = (0.25) .010 Shaft Terminal NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com 10 11 1 MR - 12 2 (0.8) .031 (3.15) Dia .124 (1.0) .039 (0.5) .020 Thk = (0.25) .010 (3.5) .138 1C M R - K 1 1 29 12 11 10 11 10 9 (2.3) .091 (3.15) Dia .124 (3.5) .138 (10.0) .394 (0.5) .020 Thk = (0.25) .010 Slotted for Screwdriver Terminal Shaft Terminal 05-08 Half-Inch Diameter Process Sealed Rotaries POLES & CIRCUITS Pole Model MRA112 SP MRF112 MRK112 MRA206 DP MRF206 MRK206 MRA403 4P MRF403 MRK403 Number of Positions 2-12 2-12 2-12 2-6 2-6 2-6 2-3 2-3 2-3 Stopper Settings 2, 3, 4, . . . 12 2, 3, 4, . . . 12 2, 3, 4, . . . 12 2, 3, 4, 5, 6 2, 3, 4, 5, 6 2, 3, 4, 5, 6 2, 3 2, 3 2, 3 Number of Terminals 1 COM, 12 LOAD 1 COM, 12 LOAD 1 COM, 12 LOAD 2 COM, 12 LOAD 2 COM, 12 LOAD 2 COM, 12 LOAD 4 COM, 12 LOAD 4 COM, 12 LOAD 4 COM, 12 LOAD 1 1 1 Series MR Schematics A 23456 A 7 8 9 10 11 12 B 23456 A B 1 2345 C D 6 231 23 1 231 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 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. Protective Cover Lens 6 45 12 Projection 7 23 89 2 1C 12 11 10 MRK & MRA Models 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. 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. 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 nut (beveled side up) firmly against the stopper plate. Standard Mounting Hardware Packaged Loose with Each Switch: Hex Face Nut Locking Ring Lockwasher Rubber Ring (MRK) Factory Assembled: Hex Nut Stopper Plate Metal Washer (MRA) Rubber Washer 12 2 1C M R - K 1 1 29 12 11 10 11 10 9 NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com 10 11 1 MR - 12 9 11 10 2 1 12 11 10 05-08 Half-Inch Diameter Process Sealed Rotaries TYPICAL SWITCH DIMENSIONS MRA * PC Terminals M6 P0.75 (0.8) Dia Typ .031 Series MR 2 Pole (3.0) Dia .118 1 Pole (3.0) Dia .118 4 Pole (3.0) Dia .118 D 4 4 C 12 A 1 3 2 6A 3 1 2 3 A 1 2 Keyway (3.15) Dia .124 (16.0) Dia .630 (2.3) .091 (1.0) .039 (10.0) .394 (5.0) .197 (17.0) .669 (6.0) .236 (10.0) .394 p 30 Ty (9.5) Dia .374 30 Ty (9.5) Dia .374 p 3 1 2 B B 5 30 Ty (9.5) Dia .374 MRA112 MRF * PC Terminals (0.8) .031 6 78 1 Pole Cover (0.25) Typ .010 2 Pole 4 Pole 8 7 34 5 21 5 (12.0) Dia .472 9 6 3 B 21 3 B 21 1 10 4 6 3 21 D (4.2) .165 (14.0) Dia .551 (8.2) .323 (0.5) Typ .020 (3.5) .138 15 Ty p yp 15 T yp 15 T (12.6) Dia .496 (12.6) Dia .496 (12.6) Dia .496 MRF403 MRK * PC Terminals M6 P0.75 (0.25) Typ .010 1 Pole 2 Pole 4 Pole 8 9 7 3 6 5 B 21 3 D 21 B 21 3 21 (12.0) Dia .472 (2.3) .091 (0.5) Typ .020 (10.0) .394 (5.5) .217 (10.1) .398 (3.5) .138 1 10 5 4 6 3 Keyway (3.15) Dia .124 15 Ty p yp 15 T (12.6) Dia .496 yp 15 T (12.6) Dia .496 (12.6) Dia .496 MRK112 MRK devices are designed to be panel mounted. Installation without panel mounting will affect reliability. FOOTPRINTS Single Pole MRA112 Double Pole MRA206 Four Pole MRA403 Single Pole MRF112 MRK112 7 Double Pole MRF206 MRK206 (0.8) Dia Typ .031 15Ty p 2 3 4 4 6 21A 5 Four Pole MRF403 MRK403 (0.8) Dia Typ .031 1 2 3 D 1 2 3 3 21A 180 6 5 4 3 2 A 9 10 11 1 12 6 5 4 3 2 A 3 B 4 5 1 6 3 2 C A 3 2 3 B D 1 3 1 2 6 5 4 3 30Ty p 8 2 30Ty p 7 (3.0) Typ .118 (9.5) Dia .374 1 (3.0) Typ .118 (9.5) Dia .374 1 2 (3.0) Typ .118 (9.5) Dia .374 (0.8) Dia Typ .031 8 B 9 10 11 12 6 5 1 B 2 1 C 3 1 (12.0) Dia .472 (12.0) Dia .472 30 Ty p (1.0) Dia Typ .039 30 Ty p (1.0) Dia Typ .039 30 Typ (1.0) Dia Typ .039 15 21A 3 Ty p 15 Ty p 15 Ty p NKK Switches * email: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com 3 5 1 32 A 21 2 3 1A 6 1 2 3 A 21 3 21 A 6 7 8 9 3 10 11 4 5 1 2 p 15 15 15 30 6 30 30 3 A 21 1 A 21 1 9 10 11 12 1 2 90 21 5 5 C 4 4 3 3 Typ 15 15 15 30 6 5 30 C 21 4 3 4 (12.0) Dia .472 05-08 Half-Inch Diameter Process Sealed Rotaries KNOBS A AT433 Plain Black Series MR B AT4103 Small Color Tipped (16.0) Dia .630 (9.5) Dia .374 C AT4104 Large Color Tipped (18.0) Dia .709 (11.0) Dia .433 Material: Polyacetal Color: Black only (19.0) Dia .748 (11.0) Dia .433 (13.0) .512 Base Material: Polyester Base Color: Black (9.5) .374 Base Material: Polyester Base Color: Black (9.5) .374 Polyamide Tip Colors: A, B, C, E, F, G, H (14.3) .563 (0.5) .020 (0.5) .020 Polyamide Tip Colors: A, B, C, E, F, G, H (15.8) .622 (9.5) .374 (0.5) .020 Color Codes: A Black B White C Red E Yellow F Green G Blue H Gray PANEL CUTOUTS & MAXIMUM EFFECTIVE PANEL THICKNESS Nonsealed Panel Without Keyway (6.35) Dia .250 (2.2) Dia .087 (6.5) .256 Sealed Panel (5.6) .220 (0.6) .024 (5.4) .213 (6.2) Dia .244 With Keyway (6.35) Dia .250 With Standard Hardware on Nonsealed Panel: MRA .067" (1.7mm) MRK .087" (2.2mm) Without Locking Ring on Nonsealed Panel: MRA .098" (2.5mm) MRK .118" (3.0mm) With Standard Hardware on Sealed Panel: MRK .106" (2.7mm) STANDARD MOUNTING HARDWARE AT513M Metric Hexagon Nut Material: Brass, nickel plating 1 for MRA; 1 for MRK M6 P0.75 (8.0) .315 AT507M Metric Locking Ring Material: Steel, chromate over zinc plating 1 for MRA; 1 for MRK (6.0) Dia .236 AT509 Lockwasher Material: Steel, chromate over zinc plating 1 for MRA; 1 for MRK AT535 Rubber Ring Material: Nitrile butadiene rubber 1 for MRK (6.2) Dia .244 (6.4) Dia (10.2) Dia .252 .402 (9.4) Dia .370 (2.0) .079 (5.5) .217 (12.0) Dia .472 (9.0) .354 (1.5) .059 (1.7) .067 (0.8) .031 (0.5) .020 (1.3) .051 OPTIONAL SUPPORT BRACKET AT543 Support Bracket for MRK Material: Steel with tin plating (3.8) Typ .150 (18.0) .709 (18.0) .709 (14.9) .587 (0.5) Typ .020 (14.0) .551 (0.8) Typ .031 (17.2) .677 (1.2) Dia Typ .047 (17.5) .689 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: sales@nkkswitches.com * Phone (480) 991-0942 * Fax (480) 998-1435 * www.nkkswitches.com 05-08 |
Price & Availability of MRK206-A
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