New Product Plateau Head Knob-type Selector Switch A3US Easy connector enables less assembly and less wiring • 50 mm body length. • Highly reliable Major Omron basic switch, SS model built in. • Possible cross over wiring on circuit construction. • Easy one push to connect the Operation and Switch Units. Model Number Structure Model Number Legend....For information on combinations, refer to Ordering Information. (3) (1) (2) A3US-S@-@M-AC@ (1) Flange Color Symbol B M (3) Degree of Protection (2) Number of Notches and Reset Method Color Black Metallic Symbol 2M 3M Number of notches 2 3 Symbol Blank 5 Reset method Manual Protection IP40 IP67 (Oil-proof type) Ordering Information Switches Degree of Protection: IP40 Flange Color: Black Type Plateau Head Knob-type Selector Switch No. of notches 2 3 Reset method Manual Output Model SPDT A3US-SB-2M-AC DPDT A3US-SB-3M-AC Selector color Black Flange Color: Metallic Type Plateau Head Knob-type Selector Switch No. of notches 2 3 Reset method Manual Output Model SPDT A3US-SM-2M-AC DPDT A3US-SM-3M-AC Selector color Black Degree of Protection: IP65 (Oil-proof Type) Flange Color: Black Type Plateau Head Knob-type Selector Switch No. of notches 2 3 Reset method Manual Output Model SPDT A3US-SB-2M-AC5 DPDT A3US-SB-3M-AC5 Selector color Black Flange Color: Metallic Type Plateau Head Knob-type Selector Switch No. of notches 2 3 Reset method Manual Output Model SPDT A3US-SM-2M-AC5 DPDT A3US-SM-3M-AC5 Selector color Black Accessories and Tools (Sold Separately) The accessories and tools are the same as those for the A3U. Refer to the A3U datasheet. 1 A3U Specifications Approved Standard Ratings Certification Authority UL (See Note: 1 and Note: 2) CSA (See Note: 1 and Note: 2) TÜV (See Note: 3) UL508 CSA C22.2 No.14 CSA C22.2 No. 14 EN60947-5-1 Rating 30 VDC 0.1 A 30 VDC 0.1 A 12 30 VDC 0.1 A File no. E41515 2650068 J50236157 Certification no. Note: 1. Only Switch Blocks are recognized by UL/CSA. (Surrounding air Temperature: 55 °C) Note: 2. Please use the power supply specified in UL/CSA class 2. Note: 3. Use 4A 250V as short-circuit protective device when using under EN-compliant rating standard (IEC60127-2 SS1). Ratings Contacts 30 VDC, 0.1 A (Resistive load) Minimum applicable load: 1 mA at 5 VDC Rated values are obtained from tests conducted under the following conditions. 1. Load: Resistive load 2. Mounting conditions: No vibration and no shock 3. Temperature: 20 ± 2 °C 4. Operating frequency: 20 operations/min Characteristics Item Allowable operating frequency Operating Characteristics Features A3US Mechanical 30 operations/minute max. Knob-type Selector Switch Total travel force (TTF) max. 0.34 Electrical 30 operations/minute max. Resetting force (RF) max. 0.34 Total travel (TT) 2 notches: Approx. 90 ° 3 notches: Approx. 45 ° Insulation resistance 100 MΩ min. (at 500 VDC) Contact resistance 250 mΩ max. (initial value) Dielectric strength Between terminals of same polarity 500 VAC, 50/60 Hz for 1 minute CN Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms) 1 Malfunction Shock resistance Malfunction 300 m/s2 max. (malfunction within 1 ms) 3 Mechanical 250,000 operations min. Electrical 100,000 operations min. Connector holding force 40 N max. Rated insulation voltage (Ui) 30 V (EN60947-5-1) Electric shock protection class Class II Degree of contamination 3 (EN60947-5-1) Impulse withstand voltage Between terminals of same polarity Between terminals of different polarity Between each terminal and ground 800 V (EN60947-5-1) Conditional short-circuit current 100 A (EN60947-5-1) Conventional enclosed thermal current (Ithe) 0.1 A (EN60947-5-1) Weight Approx. 30 g Degree of protection IP40, IP65 (Oil-proof type) Ambient operating temperature -20 °C to 70 °C (with no icing or condensation) Ambient operating humidity 35 % to 85 % RH Ambient storage temperature -40 °C to 70 °C (with no icing or condensation) Ambient storage humidity 35 % to 85 % RH SW1 2 TOP VIEW Durability 2 Circuit Diagram Between each 1,500 VAC, 50/60 Hz for 1 minute terminal and ground 4 5 6 NON CONNECT 7 8 NON CONNECT 9 NON CONNECT 10 NON CONNECT Note: 1. This circuit is for a Two-notch Switch. 2. Mount SW2 for a Three-notch Switch. A3US Dimensions (unit: mm) A3US Directionality display ( mark) Terminal No. 30 28.2 dia. Total travel 24 7 Connector B10B-PASK (JST) 1.8 17 29 2.6 14.9 Lock ring Pushbutton Unit 46.8 49.8 Mouthing nut Lot. No. Switch unit Marking 3 A3U Safety Precautions Refer to Safety Precautions for All Pushbutton Switches/Indicators. Precautions for Safe Use • Do not disassemble or modify the Switch under any circumstances. Doing so may cause malfunction. • Do not drop or subject the Switch to extreme shock or force. This may prevent the Switch from functioning to its full capability. • The durability of the Switch varies considerably depending on the switching conditions. Always test the switch under actual working conditions before application and use the Switch only for the number of switching operations allowed. • Do not allow the load current to exceed the rated value. This may damage or burn out the Switch. • Refer to the Circuit Diagram and make sure to wire correctly. Only the terminal (1) is printed and the right end of the terminal is read as (10). Rubber washer Lock Ring Triangle Mark Lever Tab Operation Unit Mounting Nut Switch Unit Panel The switch back Terminal (1) • Do not use the Switch in locations where explosive or flammable gases or liquid may be present or scattered. The electric ark or the heat caused by switching contacts may trigger off a fire or explosion. • Do not use the Switch in locations where toxic gases, such as H2S, SO2, NH3, HNO3, and Cl2, may be present, or in locations subject to high temperature or humidity. Doing so may damage the Switch due to contact failure or corrosion. • Do not let the Switch submerged in oil or water, or use in locations continuously subject to splashes of oil/water. Doing so may result in oil or water entering the Switch. • Do not use the Switch in the following locations; - subject to severe temperature changes. - subject to high humidity or condensation. - subject to severe vibration or shock. - where direct rays of the sun strike. - where sea breeze may be present. • When the Switch is exposed to the environment that are not required, or stored in locations where condensation presents, or damaged by fall out, or stored for more than an year, please test it under the usage conditions before application. • Mounting and Removing the Switch 1. Insert the Operation Unit from the front of the panel, insert the Lock Ring and Mounting Nut from the back of the panel, and tighten the Mounting Nut. Then, attach the Switch Unit to the Operation Unit. 2. For a Switch with IP65 protection, make sure that the rubber washer is in place between the Operation Unit and the panel. 3. Align the Lock Ring with the slot on the case and insert it so that the edge is flush with the panel. 4. Tighten the Mounting Nut to between 0.98 and 1.96 . 5. To mount the Switch Unit to the Operation Unit, align the the triangle marks on the Operation Unit and Switch Unit and insert the Switch Unit until it locks securely in place. 6. The push marks on both sides are only for removal. Do not push them when you insert the Switch Unit into the Pushbutton Unit. Otherwise, the Pushbutton Unit will be hooked incorrectly. 7. To remove the Switch, press the levers on both sides in the direction indicated by PUSH marks. Applying too much force may damage the Switch. 8. Remove the Switch Unit before you remove the Pushbutton Unit. If you loosen the mounting nut while the Switch Unit is still attached, you will damage the Pushbutton Unit. 4 • Wiring 1. Do not wire the Switch while power is being supplied. Doing so may result in electric shock. 2. Make sure to insert the connector to the end. This may prevent the Switch from functioning to its full capability. 3. Do not subject the Switch to an excessive force when wiring. Fix the cables first to avoid the connector and cables from being pulled with. Otherwise, the connector may be disassembled or damaged, resulting in the contact damages. Too much tension to the cables. Appropriate force to the cables. 4. Refer to specification of each connector or catalogue for details of installing or wiring the terminal side of the connector. Recommended connector; Manufacture J.S.T. Mfg Co. Name Contact Housing Model Applicable lead wire SPHD-002T-P0.5 AWG#26 to 22 SPHD-001T-P0.5 AWG#28 to 24 PAP-10V-S AWG#28 to 22 • Choose the applicable contact to the wire. A3US Precautions for Correct Use • Operating Environment 1. This Switch is intended for indoor use only. Do not use the Switch outdoors. 2. Do not set the Switch in locations where powders, mud, or any other substances may be piled, or subject to any splashes of oil or water. Always test the switch under actual working conditions before application. 3. The Switches with oil-resistant IP65 protection use NBR rubber and are resistant to general cutting oils and cooling oils. Some special oils, however, cannot be used with these Switches. Contact your OMRON representative for details. • Mounting panels 1. Set mounting panel thickness to be 0.8 to 3.2 mm. 2. The panel dimension is set as below; 0 2.4 -0.1 25.2 +0.4 -0.1 4-R0.5 max. dia. 25.2±0.1 dia. 23.5 +0.1 0 (Unit: mm) Cutout Hole for Positioning and to Prevent Switch Rotation - The value in ( ) indicated below is the minimum value suggested for easy detaching of the Switch. - Minimum panel pitch is 30/32 mm. Consider the flexibility and allowance of detaching and wiring, set the pitch to the appropriate value. - Leave some spaces for a finger between panels, so as to pinch the levers. - Place the panels in the same direction. Do not set the connectors face to face for easy removal. 30 min. (preferably 45 min.) 32 min. (preferably 40 min.) (Unit: mm) Wrong setup : Right setup : Connectors are too closely placed. Same direction Levers are too close and cannot be pushed. Some rooms for fingers to push. 5 MEMO 6 Terms and Conditions Agreement Read and understand this catalog. Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. (b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. See http://www.omron.com/global/ or contact your Omron representative for published information. Limitation on Liability; Etc. OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. Suitability of Use. Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases. NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. Performance Data. Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. Change in Specifications. Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. Errors and Omissions. Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. OMRON Corporation Industrial Automation Company Authorized Distributor: Tokyo, JAPAN Contact: www.ia.omron.com Regional Headquarters OMRON EUROPE B.V. Wegalaan 67-69, 2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS LLC 2895 Greenspoint Parkway, Suite 200 Hoffman Estates, IL 60169 U.S.A Tel: (1) 847-843-7900/Fax: (1) 847-843-7787 OMRON ASIA PACIFIC PTE. LTD. No. 438A Alexandra Road # 05-05/08 (Lobby 2), Alexandra Technopark, Singapore 119967 Tel: (65) 6835-3011/Fax: (65) 6835-2711 OMRON (CHINA) CO., LTD. Room 2211, Bank of China Tower, 200 Yin Cheng Zhong Road, PuDong New Area, Shanghai, 200120, China Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200 © OMRON Corporation 2013-2015 All Rights Reserved. In the interest of product improvement, specifications are subject to change without notice. Printed in Japan CSM_3_1_0115 Cat. No. A225-E1-02 0115 (0413)