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71BD30-05-1-AJN Datasheet(PDF) 9 Page - Grayhill, Inc |
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71BD30-05-1-AJN Datasheet(HTML) 9 Page - Grayhill, Inc |
9 / 14 page Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com Multi-Deck Rotary Switches SPECIFICATIONS Military Qualification MIL-DTL-3786/39 The military style of the Series 71 rotary switch is qualified to MIL-DTL-3786/39. Complete electrical rating information is listed on the following page. The Series 71 rotary switch qualification includes the 30° and the 36° angles of throw, in .125" (3,18) and .250" (6,35) diameter shafts, with solder lug terminals and printed circuit terminals, in sealed and unsealed style switches. Standard variations such as shaft and/or bushing length, etc. that do not affect the switch performance can also be marked as qualified product. Contact Grayhill for complete details. Dimensionally the military style is the same as the standard style with the exception of the PC version of 3 or 4 decks; a spacer deck between decks 2 and 3 adds another deck length to the SPECIFICATIONS: Materials and Finishes switch without increasing the number of operative decks. Another difference in the standard and military styles is the mounting hardware. Ordered as options with a standard style switch these items are included with the military style switch: non- turn washer with solder lug style and a non-turn washer plus a mounting bushing washer with the PC terminal style. Complete specification drawings are available from Grayhill, Inc. for the standard military qualified products. Military qualified Series 71 rotary switches may be ordered by the “M” number listed in Military Specification Sheet/39 or by Grayhill part number. All qualified switches will be marked to the specification. Military Shaft and Panel Seal A shaft and panel seal is available to provide watertight mounting of the Series 71 standard military style rotary switches. Sealing is accomplished by an O-ring shaft seal and a panel seal washer. Panel seal dimension differences are shown in the dimensional drawings. When the panel seal is compressed, dimensions are approximately the same as an unsealed switch. If the non-turn washer supplied with the switch is used, it should not be allowed to extend entirely through the panel when mounting a sealed switch. However, the bushing may be used as a non- turn device instead. Switches are provided with a double flat bushing in styles which include the letter A and with a bushing which has a keyway in the styles which include the letter B. Materials and Finishes Standard Style Cover: Diallyl per (MIL-M-14) ASTM-D- 5948 except for 71 BT (see bushing). Base and Deck Separator: Diallyl per (MIL-M-14) ASTM-D-5948 Rotor Mounting Plate: Thermoplastic Bushing: Zinc casting, tin/zinc-plated. Through Bolts and Nuts, Shaft and Rear Support Plate, Stop Pins and Stop Arm (All Others): Stainless steel Shaft, Stop Plates, Stop Arm (71BT): Reinforced thermoplastic Detent Rotor: Reinforced thermoplastic for 71BT; phenolic per (MIL-M-14) ASTM-D- 5948 for all others Detent Balls: Steel, nickel-plated Detent Springs: Tinned music wire Rotor Contact: Silver alloy and beryllium copper Base Contacts, Common Plate and Terminals: Brass, Gold plate .000005" minimum over Silver plate .00005" over nickel .00002". Front Support Plate (71 BT only): Tempered steel, tin/lead-plated. Interdeck Seal (71 BT Only): Silicone Extension: Brass, unplated Mounting Hardware: One mounting nut and one internal tooth lockwasher are supplied with each switch. For switches with A in the style description, the nut is .062" (1,57) thick by .312" (7,92) across flats. For switches with B or C in the style description, the nut is .094" (2,39) thick by .562" (14,27) across flats. Nuts are brass, tin/zinc-plated or stainless steel. Materials and Finishes Military Qualified Cover, Base and Deck Separator: Diallyl per (MIL-M-14) ASTM-D-5948 Rotor Mounting Plate: Thermoplastic Bushing: Zinc casting, tin/zinc-plated Through Bolts and Nuts, Shaft Extension, Lockwashers, Shaft and Rear Support Plate, Stop Pins and Stop Arm (All Others): Stainless steel Detent Balls: Steel, nickel-plated Detent Springs: Tinned music wire Rotor Contact: Silver alloy and beryllium copper Base Contacts, Common Plate and Terminals: Brass, gold plate .000005" minimum over silver plate .00005" over Nickel .00002". Detent Rotor: Phenolic per (MIL-M-14) ASTM-D-5948 Mounting Hardware: One mounting nut and one internal tooth lockwasher are supplied with each Series 71 switch. For switches with Style A in the description, the nut is .062" (1,57) thick by .312" (7,92) across flats. For switches with Style B or C in the description, the nut is .094" (2,39) thick by .562" (14,27) across flats. Nuts are brass, tin/zinc-plated or stainless steel. Additional Hardware: Each switch is supplied with a non-turn washer to use if desired. Additionally, each PC mount switch is supplied with a mounting bushing washer (see PC Mount Accessory). For switches with Style A in the description, non-turn washer is stainless steel; for switches with Style B in the description, non-turn washer is stainless steel. Mounting bushing washer (PC Mount Accessory) is brass, tin/zinc- plated. Rotary 10 |
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