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BE-2R-A4 Datasheet(PDF) 2 Page - Honeywell Accelerometers |
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BE-2R-A4 Datasheet(HTML) 2 Page - Honeywell Accelerometers |
2 / 16 page Basic Switches BZ/BA Series Standard For application help: call 1-800-537-6945. Honeywell Sensing and Control 47 STANDARD BASIC SWITCH CUT-A-WAY The cut-a-way shown is representative of the standard basic switches described in this catalog. GENERAL INFORMATION MICRO SWITCH standard basic switches are precision snap-action mechanisms enclosed in accurately molded plastic cases. These switches are carefully man- ufactured and thoroughly inspected. They are industry known for their com- pactness, light weight, accurate repeata- bility and long life. The type BZ switch design meets most applications needs. Modifications of the standard silver contact design and mate- rial, spring configuration, and plunger lo- cations give the type BM, BA and BE switches greater electrical load handling capacity. Other changes in materials and switch design provide operating charac- teristics, temperature tolerances, and sealing to cover a wide range of special requirements. FEATURES Operating force as low as 4 oz. (113 grams) maximum Sensitive differential travel as low as .0002 to .0003 inches (0,005 to 0,008 mm) Power load switching capability to 25 amperes Motor handling capacity to 2 horse- power at 250 VAC Long mechanical life High temperature constructions for up to +400°F (204°C) Momentary or maintained contact action Alloy contacts available for special ap- plication needs Variety of integral actuators Variety of auxiliary actuators Variety of terminal designs Optional sealed plunger and cover Stainless steel snap spring available Military standard construction availa- ble with over 50 listings on the MIL- S-8805 Qualified products list UL recognized, CSA certified Characteristics as stated are taken at nor- mal room temperature and humidity. These may vary as temperature and hu- midity conditions differ. MOUNTING DIMENSIONS Mounting dimensions are included at the end of each product section. They are shown in English and metric equivalents. These dimensions are for reference only. For exacting layout work, request an engi- neering layout work, request an engineer- ing drawing from the 800 number. Mounting holes for Types BZ, BM, BA, BE, DT, MT, and 6AS switches accept pins or screws of .139 inch (3,53 mm) diameter. RECOMMENDED TORQUE (max.) Mounting screws ............3 in./lbs.* Terminal screws ..............4 in./lbs. Panel mount bushing .......4-6 in./lbs. * Note: Tightening mounting screws above 3 in./lbs. changes operat- ing characteristics and increases the possibility of cracking the case. GENERAL SWITCH IDENTIFICATION First letter in catalog listing designates: B = Single-pole double-throw W = Single-pole single-throw (normally closed) Y = Single-pole single-throw (normally open) Second letter in catalog listing designates: Z = Standard 15-amp version M = 22-amp version A = Standard 20-amp version E = 25-amp version This section covers only over 100 of our most popular BZ/BA type Series catalog listings. If you don’t find what you’re looking for, it’s likely one of the approximately 1800 other active listings will meet your needs. Con- tact the 800 number. UL/CSA Our basic switches are Component Recognized by Underwriters’ Laboratories, Inc. and certified by Canadian Standards Associ- ation. The BA, BZ, and BM line is covered as Special Use Switches to UL Standard 1054; the BE line is covered as an Industrial Motor Controller to UL Standard 508. Agency File References are: BA UL File E12252, issued 12-09-88 BM UL File E12252, issued 12-08-88 BZ UL File E12252, issued 6-29-89 BE-1,2,5 UL File E22779, Vol. 4, Sec. 1 BE-R UL File E22779, Vol. 4, Sec. 2 |
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