Series MR Miniature Power Level Rotaries General Specifications Electrical Capacity (Resistive Load) For MRX: 2A 125V AC or 1A 30V DC For MRY: 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 MRT: For MRT22: 10A 125V AC or 4A 30V DC For MRT23: 5A 125V AC or 3A 30V DC Other Ratings Contact Resistance: 10 milliohms maximum for MRX, MRY, & MRT 20 milliohms maximum for MRY106G Insulation Resistance: 100 megohms minimum 500V DC for MRX & MRY 200 megohms minimum 500V DC for MRT Dielectric Strength: 1,000V AC minimum for 1 minute minimum Mechanical Life: 15,000 operations minimum Electrical Life: 7,500 operations minimum Range of Operating Torque: 0.03 ~ 0.15Nm for MRX 0.02 ~ 0.10Nm for MRY 0.02 ~ 0.05Nm for MRT Contact Timing: Nonshorting (break-before-make) MRX: Self-cleaning, sliding contact MRY: Rotary contactor dish MRT: Butt contacts Indexing: 45 for MRX 60 for MRY 120 for MRT22 60 for MRT23 Materials & Finishes G Shaft: Brass with nickel plating Stopper Plate: Steel with zinc plating for MRX & MRY Bushing/Housing: Brass with nickel plating Movable Contacts: Silver alloy for MRX & MRT copper with silver plating for MRY106 copper with gold plating for MRY106G End Contacts & Terminals: 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 Common Contacts & Terminals: Copper with silver plating for MRX, MRY106 & MRT22 brass with gold plating for MRY106G brass with silver plating for MRT23 Base: Phenolic resin Environmental Data Operating Temperature Range: 10C through +70C (+14F through +158F) Humidity: 90 ~ 95% humidity for 96 hours 40C (104F) Vibration: 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 2 Shock: 50G (490m/s ) acceleration (tested in 3 right angled directions, with 3 shocks in each direction) Installation Mounting Torque: .686Nm (6.08 lb in) Cap Installation Force: 19.6 ~ 29.4N (4.41 ~ 6.61 lbf) Soldering Time & Temperature: Manual Soldering: See Profile A in Supplement section. Standards & Certifications UL: File No. E44145 - Recognized only when ordered with marking on switch. Add /U or /CUL before dash in part number to order UL recognized switch. MRT22 models recognized at 10A 125V AC MRT23 models recognized at 5A 125V AC G22 www.nkk.com Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesMiniature 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. G 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 www.nkk.com G23 Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles