General-purpose Basic Switch A CSM_A_DS_E_3_4 High-capacity Switch Capable of Handling 20 A Loads with Large Inrush Currents • Same shape as OMRON Z Basic Switches except in pin plunger position, yet endures inrush currents as large as 75 A. Be sure to read Safety Precautions on page 6 and Safety Precautions for All Basic Switches. For the most recent information on models that have been certified for safety standards, refer to your OMRON website. Model Number Structure Ordering Information Model Number Legend Terminal A - 20 G @ - @ Solder terminal Actuator (1) (2) (3) (4) Screw terminal (-B) Model Model Pin plunger A-20G A-20G-B Short spring plunger A-20GD A-20GD-B Panel mount plunger A-20GQ A-20GQ-B Panel mount roller plunger A-20GQ22 A-20GQ22-B --- A-20GQ21-B Short hinge lever A-20GV21 A-20GV21-B Hinge lever A-20GV A-20GV-B Short hinge roller lever A-20GV22 A-20GV22-B Hinge roller lever A-20GV2 A-20GV2-B (1) Ratings 20 : 20 A (250 VAC) (2) Contact Gap G : 0.5 m (3) Actuator None D Q Q21 Q22 V V2 V21 V22 : Pin plunger : Short spring plunger : Panel mount plunger : Panel mount cross roller plunger : Panel mount roller plunger : Hinge lever : Hinge roller lever : Short hinge lever : Short hinge roller lever Panel mount cross roller plunger (4) Terminals None : Solder terminal B : Screw terminal (with toothed washer) Specifications Ratings Rated voltage (V) 125 VAC 250 VAC 500 VAC 8 VDC 14 VDC 30 VDC 125 VDC 250 VDC Certified Standard Ratings Non-inductive load (A) Resistive load NC NO 20 20 15 20 20 6 0.5 0.25 Lamp load NC NO 3 3 3 0.5 0.25 Inductive load NC NO 20 20 10 7.5 7.5 4 1.5 1.5 1.5 0.5 0.25 Ask your OMRON representative for information on certified models. Inductive load (A) 20 15 5 0.05 0.03 Motor load NC NO 12.5 8.3 2 12.5 12.5 5 0.05 0.03 UL/CSA (General ratings only) Rated voltage Model A-20G 125 VAC 1 HP 10 A "L" 250 VAC 2 HP 480 VAC 20 A 125 VDC 0.5 A 250 VDC 0.25 A Note: 1. The above values are for steady-state current. 2. Inductive load has a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC). 3. Lamp load has an inrush current of 10 times the steady-state current. 4. Motor load has an inrush current of 6 times the steady-state current. 5. The ratings values apply under the following test conditions: (1) Ambient temperature: 20±2°C (2) Ambient humidity: 65±5%RH (3) Operating frequency: 20 operations/min 1 A Engineering Data Characteristics 240 operations/min Electrical 20 operations/min Insulation resistance 100 MΩ min. (at 500 VDC) Contact resistance 15 mΩ max. (initial value) Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between terminals of the same polarity 2,000 VAC, 50/60 Hz for 1 min between the current-carrying metal parts and the ground, and between each terminal and non-currentcarrying metal parts Vibration resistance Shock resistance Durability Malfunction 10 to 55 Hz, 1.5-mm double amplitude *2 Destruction 1,000 m/s2 max. Malfunction 300 m/s2 max. *1 *2 Mechanical 1,000,000 operations min. Electrical 500,000 operations min. Durability (x10 4 operations) Mechanical 1,000 700 Ambient temperature: 20 ±2 °C Ambient humidity: 65 ±5%RH Without load Operating frequency: 240 operations/min 500 300 100 70 50 30 10 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Overtravel (mm) Degree of protection IP00 Degree of protection against electric shock Class I Proof tracking index (PTI) 175 Ambient operating temperature −25°C to 80°C (with no icing) Ambient operating humidity 35% to 85%RH Weight Approx. 22 to 58 g Electrical Durability (A-20G) *1. The value is for the pin plunger. (Contact your OMRON representative for other models.) *2. Malfunction: 1 ms max. Durability (x10 4 operations) Operating frequency Mechanical Durability (A-20G) 0.01 mm to 1m/s *1 Operating speed 1,000 700 Ambient temperature: 20 ±2 °C Ambient humidity: 65 ±5%RH Operating frequency: 20 operations/min 500 300 125 VAC, cosφ = 1 125 VAC, cosφ = 0.4 250 VAC, cosφ = 1 100 70 Contact Specification 50 Shape Contacts Rivet Material 30 Silver alloy Gap (standard value) Inrush current 250 VAC, cosφ = 0.4 0.5 mm NC 75 A max. NO 75 A max. 10 0 5 10 15 20 25 Switching current (A) Structure Contact Form (SPDT) COM NC NO Dimensions (Unit: mm) Terminals Mounting Holes Screw Terminals (-B) Use M4 mounting screws with plane washers or spring washers to securely mount the Switch. Tighten the screws to a torque of 1.18 to 1.47 N·m. Two, 4.2 dia. mounting holes or M4 9.2 20 20 17.45±0.2 COM 1 NO NC 3 2 49.2 25.4±0.1 Three, M4 × 5.5 Terminal screws (with toothed washer) Solder Terminal (-A) ("-A" is not included in the model numbers.) The Switch can be panel mounted, provided that the hexagonal nut of the actuator is tightened to a torque of 2.94 to 4.9 N·m. Panel Mount Plunger + 0.2 12.5 0 dia. Panel Mount Roller Plunger 12.5 + 0.2 0 dia. 5 + 0.2 0 6.4 25.4±0.1 11.9 17.45±0.2 13 + 0.2 0 3 1 NO COM NC 2 49.2 Note: 1. Appropriate terminal screw tightening torque: 0.78 to 1.18 N·m. 2. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 2 A Dimensions and Operating Characteristics The models, illustrations, and graphics are for screw-terminal models. (The dimensions for models that are omitted here are the same as for pin-plunger models.) Pin Plunger A-20G-B 19.05±0.25 PT 2.3 dia. 4.2 +0.075 −0.025 dia. hole 2.3SR * OP 24.2 9.2 4.2 +0.075 −0.025 dia. 4.36 +0.1 −0.05dia. 11.9 25.4±0.1 49.2 Short Spring Plunger A-20GD-B 17.45±0.2 * Stainless-steel plunger 15 dia. PT 19.05±0.25 11.2 dia. 7.15 11.9SR * dia. 7.5 OP 24.2 9.2 * Stainless-steel plunger 17.45±0.2 Panel Mount Plunger A-20GQ-B PT 19.05±0.25 OP 8.35 dia. 11.9SR *1 M12 × 1 mounting screw Note: Do not use both M12 mounting screw and Two hexagon nuts mounting holes at the (2 t × 14 width across flats) same time. *2 13.1 Two lock nuts (2 t × 15.6 width across flats) 16.3 16 dia. 9.2 *1 Stainless-steel plunger *2 Incomplete screw part with a maximum length of 1.5 mm. 17.45±0.2 Panel Mount Roller Plunger A-20GQ22-B 19.05±0.25 PT 12.7 dia. × 4.8 *1 Two hexagon nuts (3 t × 17 width across flats) OP M12 × 1 mounting screw 15.5 *2 16.3 Note: Do not use both M12 mounting screw and mounting holes at the same time. *1 Stainless-steel roller 16 dia. 9.2 *2 Incomplete screw part with a maximum length of 1.5 mm. 17.45±0.2 Panel Mount Cross Roller Plunger PT A-20GQ21-B 19.05±0.25 12.7 dia. × 4.8 *1 Two hexagon nuts (3 t × 17 width across flats) OP 15.5 M12 × 1 mounting screw *2 16.3 Note: Do not use both M12 mounting screw and mounting holes at the *1 Stainless-steel roller same time. 16 dia. 9.2 *2 Incomplete screw part with a maximum length of 1.5 mm. 17.45±0.2 Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. Operating Characteristics A-20G-B A-20GD-B A-20GQ-B A-20GQ22-B A-20GQ21-B Operating force Release force Pretravel Over Travel Movement differential OF RF min. PT max. OT min. MD max. Model 3.92 to 6.13 N 2.79 N 1.3 mm 0.25 mm 0.2 mm 3.92 to 6.13 N 2.79 N 1.3 mm 3 mm 0.2 mm 3.92 to 6.13 N 2.79 N 1.3 mm 5.6 mm 0.2 mm 6.18 N max. 2.75 N 1.3 mm 3.58 mm 0.35 mm 6.18 N max. 2.75 N 1.3 mm 3.58 mm 0.35 mm Operating Position OP 16.3±0.4 mm 26.2±0.5 mm 21.8±0.8 mm 33.4±1.2 mm 33.4±1.2 mm 3 A Short Hinge Lever A-20GV21-B 24.56±0.25 t=1* .3R 28 4.9 PT 20.2 17.9 14.7 OP 9.2 * Stainless-steel lever 17.45±0.2 Hinge Lever A-20GV-B 24.56±0.25 5R 63. PT t=1* 20.2 17.9 4.9 14.7 OP 9.2 * Stainless-steel lever 17.45±0.2 Short Hinge Roller Lever A-20GV22-B 24.56±0.25 9.5 dia. × 4 (plastic roller) t=1* 26 .2 R PT OP 20.2 17.9 14.7 9.2 * Stainless-steel lever 17.45±0.2 Hinge Roller Lever A-20GV2-B 9.5 dia. × 4 (plastic roller) 24.56±0.25 PT .4R 48 t=1* OP 20.2 17.9 14.7 9.2 * Stainless-steel lever 17.45±0.2 Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. Operating Characteristics OF max. RF min. PT max. OT min. MD max. OP Model A-20GV21-B A-20GV-B A-20GV22-B A-20GV2-B 1.57 N 0.41 N 6.5 mm 1.2 mm 1.2 mm 0.69 N 0.14 N 15.9 mm 4 mm 2.4 mm 1.57 N 0.41 N 6.3 mm 1.2 mm 1.2 mm 0.88 N 0.14 N 12 mm 2.4 mm 2.2 mm 19±0.8 mm 19±0.8 mm 29.8±0.8 mm 30.2±0.8 mm 4 A Accessories (Order Separately) A Terminal Protective Cover and a Separator are available. Terminal Covers (Sold Separately) Separator (Sold Separately) The Terminal Covers can be attached to Z, A, X, and DZ Switches. The Terminal Cover is secured with mounting screws and protects the casing and terminal wires from dust, vibration, or fingers, thus preventing terminal short-circuiting, ground faults, wire disconnection or improper connection, and electric shock accidents. Terminal Covers made of phenol resin have five or six thin wall sections. These sections can be torn open for providing holes for lead cables at desired points. A terminal cover can’t be used in the case of using an actuator sold separately. Use a Separator when it is difficult to provide a sufficient insulation distance or when using the Switch near metal parts or copper wires. Operation Information Model SEPARATOR FOR Z Operation Information Application Soldering terminal use Material Mounting direction Phenol resin Side mounting Metal press mold Side mounting Vinyl chloride Screw terminal use Remarks Model AP-A AP-B --- AP1-A AP1-B Used for AP-A and AP-B Side mounting AP-Z --- Note: Use a Terminal Cover for screw terminals fir DZ-series Switches with soldering terminals. Dimensions (Unit: mm) Terminal Covers Soldering Terminal Use (Phenol Resin) 25.4 4.3＋0.2 0 53.8 AP-B 52.8 AP-A 25.4 4.3＋0.2 0 Screw Terminal Use (Phenol Resin) 4.3＋0.2 0 4.3＋0.2 0 8 8 16.3 6.5 R2.15 8 Soldering Terminal Use (Metal Press Mold) 8 21 Note: The Cover has six thin, easy-to-separate portions for easy lead wire connections. 55.4 AP1-B 54.4 25.4 4.3＋0.2 0 6.5 21 Note: The Cover has five thin, easy-to-separate portions for easy lead wire connections. AP1-A 20.2 R2.15 25.4 4.3＋0.2 0 Screw Terminal Use (Metal Press Mold) 4.3＋0.2 0 4.3＋0.2 0 8 8 17.1 R2.15 21 R2.15 7.2 7 8.5 22.6 Note: The Cover has five holes for easy lead wire connections. AP-Z 8.5 22.6 Note: The Cover has six holes for easy lead wire connections. 2-φ4.2 52.8 25.4 押え板 （t1鋼板） Soldering or Screw Terminal Use (Vinyl Chloride) 21 Cable Pull-out Dimension 7 14 A−A′ 断面 21 15 39 A A′ B 13 15 座金ナット M3×20プラス小ねじ （平座金、座金ナット付） B′ φ8 B−B′ 断面 13 φ6 46 Note: A 6-dia. or 8-dia. cable can be used by cutting the cable pull-out hole to the size of the cable to be used. 12 Note: Each dimension has a tolerance of ±0.4 mm unless otherwise specified. (±0.8 mm for the AP-Z) Separator 2-φ4.5 13.5 27±0.5 25.4±0.2 49.2±0.5 Note: 1. Each dimension has a tolerance of ±0.4 mm unless otherwise specified. 2. The material is EAVTC (Epoxide Alkyd Varnished Tetron Cloth) and its heat-resisting temperature is 130°C. 11.9 t＝0.51 5 A Safety Precautions Refer to Safety Precautions for All Basic Switches. Precautions for Safe Use Terminal Connection When you wire a Switch, use a wire size that is suitable for the applied voltage and current flow. When soldering wires to the Switch, make sure that the capacity of the soldering iron is 60 W maximum and complete soldering within 5 s. If soldering is not performed correctly, heat may be abnormally generated when the Switch is used, which may cause burning. The characteristics of the Switch will deteriorate if a soldering iron with a capacity of more than 60 W is used or if heat is applied to the Switch for more than 5 s. • Do not use the switch outside the specified temperature and atmospheric conditions. The permissible ambient temperature depends on the model. (Refer to the specifications in this catalog.) Sudden thermal changes may cause thermal shock to distort the switch and result in faults. Incorrect Correct Separate the installation location from heat sources. Operation • Make sure that the switching frequency or speed is within the specified range. 1.If the switching speed is extremely slow, the contact may not be switched smoothly, which may result in a contact failure or contact welding. 2.If the switching speed is extremely fast, switching shock may damage the Switch soon. If the switching frequency is too high, the contact may not catch up with the speed. The rated permissible switching speed and frequency indicate the switching reliability of the Switch. The life of a Switch is determined at the specified switching speed. The life varies with the switching speed and frequency even when they are within the permissible ranges. In order to determine the life of a Switch model to be applied to a particular use, it is best to conduct an appropriate durability test on some samples of the model under actual conditions. • Make sure that the actuator travel does not exceed the permissible OT position. The operating stroke must be set to 70% to 100% of the rated OT. Precautions for Correct Use Mounting Location • Do not use the switch alone in atmospheres such as flammable or explosive gases. Arcing and heat generation associated with switching may cause fires or explosions. • Switches are generally not constructed with resistance against water. Use a protective cover to prevent direct spraying if the switch is used in locations subject to splashing or spurting oil or water, dust adhering. Incorrect Terminal box Correct Terminal box • Install the switch in a location that is not directly subject to debris and dust from cutting. The actuator and the switch body must be protected from accumulated cutting debris and dirt. Incorrect Correct • Do not use the switch in locations subject to hot water (greater than 60°C) or in water vapor. • Mount a cover if the switch is to be installed in a location where worker inattention could result in incorrect operation or accidents. Correct Incorrect (preventing malfunctions) • Subjecting the switch to continuous vibration or shock may result in contact failure or faulty operation due to abrasion powder and in reduced durability. Excessive vibration or shock will cause the contacts to operate malfunction or become damaged. Mount the switch in a location that is not subject to vibration or shock and in a direction that does not subject the switch to resonance. • If silver contacts are used with relatively low frequency for a long time or are used with microloads, the sulfide coating produced on the contact surface will not be broken down and contact faults will result. Use a microload switch that uses gold contacts. • Do not use the switch in atmospheres with high humidity or heat or in harmful gases, such as sulfide gas (H2S, SO2), ammonia gas (NH3), nitric acid gas (HNO3), or chlorine gas (Cl2). Doing so may impair functionality, such as with damage due to contacting faults or corrosion. • The switch includes contacts. If the switch is used in an atmosphere with silicon gas, arc energy may cause silicon oxide (SiO2) to accumulate on the contacts and result in contact failure. If there is silicon oil, silicon filling, silicon wiring, or other silicon products in the vicinity of the switch, use a contact protection circuit to limit arcing and remove the source of the silicon gas. Wiring • Use wire sizes that are suitable to the applied voltage and carried current. • If you use a soldering iron to solder the wires, do not allow the tip of the soldering iron to exceed 380°C. If a Switch is used with insufficient soldering, abnormal heat and burning may occur. • Solder for no more than 5 s at 350°C and for no more than 3 s at 380°C. If heat is applied for too long, the case may melt, the lead wire coverings may be scorched, and other characteristics of the Switch may deteriorate. Panel-mounting model (A-20GQ@) • If a Switch is side-mounted with screws, remove the hexagonal nut of the actuator. • If a Switch is side-mounted and secured with screws, make sure that the angle or speed of the actuating object is not excessively large or too high, otherwise the Switch may be damaged. • If a Switch is panel-mounted, pay utmost attention to make sure that the actuating speed or OT distance is not excessively high or large. Not doing so may damage the Switch. 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. 2016.3 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2016 All Right Reserved.