Thumbwheel Switch A7BS/A7BL CSM A7BS/A7BL DS E 6 1 Wide Range of Locking-type Models Available Character height of 4.8 or 3.2 mm makes for easy-to- view display. Installation is easy with snap-in mounting. The series includes a complete range of locking-type models that prevent accidental operation. Ordering Information Switches (Single Switch Units) Model A7BS A7BS-20 -S Snap-in (front mounting) Snap-in (front mounting) Classification (See note 1.) With external stoppers Character height Decimal: 4.8 mm Hexadecimal: 3.2 mm 4.8 mm Terminals Solder terminals *1 Color Light gray Black Light gray Black Output code number Model 06 (binary coded decimal) A7BS-206 *2 A7BS-206-1 *2 A7BS-206-S A7BS-206-S-1 07 (binary coded decimal, with component A7BS-207 *2 A7BS-207-1 *2 A7BS-207-S A7BS-207-S-1 adding provision) *3 19 (decimal code, with component-adding provision) A7BS-219 A7BS-219-1 --- --- 54 (binary coded hexadecimal) A7BS-254 A7BS-254-1 --- --- 55 (binary coded hexadecimal, with A7BS-255 A7BS-255-1 --- --- component-adding provision) *3 Model A7BL Snap-in (front mounting) Classification (See note 1.) Locking type Character height 4.8 mm Terminals Solder terminals *1 Color Light gray Black Output code number Model 06 (binary coded decimal) A7BL-206 *2 A7BL-206-1 *2 07 (binary coded decimal, with component- A7BL-207 *2 A7BL-207-1 *2 adding provision) *3 Note: 1. The classification diagrams show 4 Switch Units combined with End Caps to create 4-digit displays. 2. The model numbers given above are for Switch Units. 3. Models with +, - displays can also be produced. Add -PM (+/- alternating display) or -MP (-/+ alternating display) after the 206 or 207 in the model number (e.g., A7BS-206-PM, A7BS-207-PM-1, or A7BS-206-MP). There is no -MP type available, however, for A7BS-20 -S models. *1. For models with PCB terminals, add -P2 to the model number (e.g., A7BS- 207-P2-1). *2. Models with internal stoppers are also available. Add -S after the 206 or 207 in the model number and specify the display range in the . For example, to specify the range 0 to 6, add -S06 to the model number (e.g., A7BS-206-S06-1). For structural reasons, models with stoppers cannot be manufactured for the A7BS-254 and A7BS-255. *3. Models with diodes are available. Add -D to the model number (e.g., A7BS- 207-D or A7BS-207-D-1). 1A7BS/A7BL Accessories (Order Separately) Use accessories, such as End Caps, Spacers, and Connectors with the Switch Units. End Caps, Spare Units, and Connectors Accessory Color Light gray Black End Caps (1 pair) A7B-M A7B-M-1 Spacer A7B-P (See note.) A7B-P -1 (See note.) Solder terminals A7B-C Connectors PCB terminals A7B-CP Note: The in the Spacer model number stands for a letter in the range A to U. (Refer to the table in the following explanation about Spacers.) End Caps Spacers End Caps are used on the Switch Units at each end and allow all the Spacers are used for creating extra space or gaps between the Switch Units to be securely mounted to a panel. They come in pairs, Switch Units and have the same dimensions as the Switch Units one for the left and one for the right. themselves. There are also Spacers with engraved characters or symbols that can be used for indicating units, such as time and length. (Refer to the following table.) Consult your OMRON representative for details. Symbol A B C D E F G No des- Stamp SEC MIN H g kg mm ignation Symbol H J K L Q T U x 10 Stamp cm m CPCS 0 SEC Specifications 3.3 to 28 VDC or 50 VAC Switching capacity (resistive load) 1 mA to 0.1 A Continuous carry current 1 A max. Contact resistance 300 m max. Between non-connected 10 M min. (at 500 VDC) terminals Insulation resistance Between terminal and 1,000 M min. (at 500 VDC) non-current carrying part Between non-connected 600 VAC, 50/60 Hz for 1 min terminals Dielectric strength Between terminal and 1,000 VAC, 50/60 Hz for 1 min non-current carrying part Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude 2 Shock resistance 490 m/s min. Mechanical 100,000 operations min. Durability Electrical 50,000 operations min. Operating: -10C to 65C (with no icing) Ambient temperature Storage: -20C to 80C Ambient humidity Operating: 45% to 85% Max. operating force 5.39 N max. 2