MICRO SWITCH™ Premium Large Basic Switches BZ | BA | BM | BE | 6AS Series Datasheet
MICRO SWITCH™ Large Premium Basic Switches Accurate, reliable, and repeatable, MICRO SWITCH™ BZ/BA/BM/BE Series features precise operating characteristics and enhanced life. These premium, large snap-action switches offer precision operation and sensitive differential travel. Utilizing state-of-the-art manufacturing processes and quality controls, Honeywell has engineered premium, large snap-action switches that meet various international agency requirements. Some models have military qualifications.
Features and Benefits GLOBAL USE AND APPROVALS Switches certified to UL, CSA, ENEC, and CE for global use FLEXIBILITY OF PRODUCT CHARACTERISTICS Honeywell’s large basic switches offer various operating force and differential travel options to meet the actuator type.
Potential Applications BUILDING CONTROLS AND EQUIPMENT Often used in a building’s boiler/heater controls, in HVAC systems to sense exhaust pressure on high efficiency furnances, and in fire suppression systems to sound alarm when sprinkler activation/waterflow is detected.
MICRO SWITCH™ Premium Large Basic Switches Table 1. Specifications Characteristic BZ Series Ampere rating Circuitry Operating force Termination WZ Series YZ Series BA Series 15 A SPDT SPNC WA Series YA Series BM Series BE Series 22 A 25 A SPDT SPDT 20 A SPNO SPDT SPNC SPNO 1.
BZ | BA | BM | BE | 6AS Series ELECTRICAL DATA AND UL CODES GENERAL SWITCH IDENTIFICATION Table 2. UL Electrical Ratings The first letter in the catalog listing designates: Code Circuitry Electrical data and UL codes B = Single pole, double throw W = Single pole, normally closed SPDT 15 A, 125, 250 or 480 Vac; 1⁄8 HP, 125 Vac; 1⁄4 HP, 250 Vac; 1⁄2 A, 125 Vdc; 1⁄4 amp, 250 Vdc. UL Code L96 B SPDT 5 A, 125, 250 or 480 Vac; 1⁄2 A, 125 Vdc; 1⁄4 amp, 250 Vdc.
MICRO SWITCH™ Premium Large Basic Switches O.F. • R.F. • P.T. • O.T. • D.T. • O.P. • Electrical Data and UL Codes ORDER GUIDE BY ASCENDING ELECTRICAL CAPABILITY O.F. N [oz] R.F. min. N [ oz] P.T. max. mm [in] O.T. min. mm [in] D.T. mm [in] O.P.*** mm [in] 1A P 2,5 to 3,61 [9 to 13] 1,11 [4] 0,38 [0.015] 0,13 [0.005] 0,01 to 0,05 [0.0004 to 0.0020] 15,88 [0.625] Gold alloy contacts BZ-2R725551-A2 Dustproof and splash resistant seal 1A P 2,22 to 4,17 [8 to 15] 1,11 [4] – 0,13 [0.
BZ | BA | BM | BE | 6AS Series OVERTRAVEL PLUNGER ORDER GUIDE Operating force Release force Pretravel Overtravel Differential travel Operating position P.T. max. mm [in] O.T. min. mm [in] D.T. mm [in] O.P.* mm [in] Electrical Data and UL Codes R.F. min. N [ oz] O.F. N [oz] BZ-2RD72-A2 Applications requiring gold alloy contacts 1A P 2,5 to 3,61 [9 to 13] 1,11 [4] 0,38 [0.015] 1,52 [0.060] 0,01 to 0,05 [0.0004 to 0.0020] 21,21 [0.835] BZ-2RD-A2 Added overtravel.
MICRO SWITCH™ Premium Large Basic Switches O.F. • R.F. • P.T. • O.T. • D.T. • O.P. • OVERTRAVEL PLUNGER ORDER GUIDE Operating force Release force Pretravel Overtravel Differential travel Operating position P.T. max. mm [in] O.T. min. mm [in] D.T. mm [in] O.P.** mm [in] Electrical Data and UL Codes R.F. min. N [ oz] O.F. N [oz] BZ-2RQ-A2 Added overtravel. For manual in-line operation and for slow 30° (max) rise cams 15 A A 2,5 to 3,61 [9 to 13] 1,11 [4] 0,38 [0.015] 5,56 [0.
BZ | BA | BM | BE | 6AS Series O.F. • R.F. • P.T. • O.T. • D.T. • O.P. • Electrical Data and UL Codes STRAIGHT LEVER ORDER GUIDE O.F. N [oz] R.F. min. N [ oz] P.T. max. mm [in] O.T. min. mm [in] D.T. mm [in] O.P.** mm [in] 1A P 0,7 [2.5] 0,14 [0.5] – 5,56 [0.219] 0,18 to 1,27 [0.007 to 0.050] 19,1 [0.750] Stability under varying humidity. Gold alloy contacts with seal 1A P 0,7 [2.5] 0,14 [0.5] – 5,56 [0.219] 0,18 to 1,27 [0.007 to 0.050] 19,1 [0.750] BZ-2RW8244-A2 Operating in temp.
MICRO SWITCH™ Premium Large Basic Switches SIMULATED ROLLER AND ROLLER LEVER ORDER GUIDE O.F. • R.F. • P.T. • O.T. • D.T. • O.P. • Operating force Release force Pretravel Overtravel Differential travel Operating position P.T. max. mm [in] O.T. min. mm [in] D.T. mm [in] O.P.** mm [in] Electrical Data and UL Codes R.F. min. N [ oz] O.F. N [oz] BZ-2RW80147A2 1.05 inch (26,7 mm) (simulated roller) lever applications 15 A A 1,67 [6] 0,42 [1.5] – 2,39 [0.094] 0,08 to 0,51 [0.003 to 0.
BZ | BA | BM | BE | 6AS Series O.F. • R.F. • P.T. • O.T. • D.T. • O.P. • ROLLER LEVER ORDER GUIDE P.T. max. mm [in] O.T. min. mm [in] D.T. mm [in] O.P.** mm [in] Electrical Data and UL Codes R.F. min. N [ oz] O.F. N [oz] BZ2RW82725551A2 Applications requiring gold alloy contacts, plus dustproof, and splash resistant seal 1A P 0,97 [3.5] 0,21 [0.75] – 3,96 [0.156] 0,10 to 1,0 [0.004 to 0.040] 30,17 ±0,76 [1.188 ±0.030] BZ-2RW82-A2 1.
MICRO SWITCH™ Premium Large Basic Switches O.F. • R.F. • P.T. • O.T. • D.T. • O.P. • FLEXIBLE LEAF AND FLEXIBLE ROLLER LEAF ORDER GUIDE Operating force Release force Pretravel Overtravel Differential travel Operating position P.T. max. mm [in] O.T. min. mm [in] D.T. mm [in] max. O.P.** mm [in] Electrical Data and UL Codes R.F. min. N [ oz] O.F. N [oz] BZ-2RL-A2 Force and stability of the flexible leaf actuator 15 A A 1,39 [5] 0,14 [0.5] – 1,52 [0.060] 1,27 [0.050] 17,48 [0.
BZ | BA | BM | BE | 6AS Series STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS BZ/BM Series: Pin plunger 2,3 mm [0.09 in] dia 15,0 mm [0.59 in] 3,6 mm [0.14 in] 4,3 mm [0.17 in] dia. 25,4 mm [1.00 in] 49,3 mm [1.94 in] 11,9 mm [0.47 in] 9,1 mm [0.36 in] 3,6 mm [0.14 in] dia. 16,2 mm [0.64 in] O.P. 7,11 mm [0.28 in] dia. 4,06 mm [0.16 in] 21,1 mm [0.83 in] O.P. 14,5 mm [0.57 in] 9,1 mm [0.36 in] 4,3 mm [0.17 in] dia. 25,4 mm [1.00 in] 49,3 mm [1.94 in] 11,9 mm [0.47 in] 3,6 mm [0.
MICRO SWITCH™ Premium Large Basic Switches STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS BZ/BM Series: Flexible leaf actuator 45,2 mm [1.78 in] SST lever 20,5 mm 17,5 mm [0.81 in] [0.69 in] F.P. O.P. 5,3 mm 14,7 mm [0.21 in] [0.58 in] 3,6 mm [0.14 in] 4,3 mm [0.17 in] dia. 11,9 mm [0.47 in] 9,1 mm [0.36 in] 25,4 mm [1.00 in] 49,3 mm [1.94 in] 3,6 mm [0.14 in] dia. SST lever 25,4 mm [1.00 in] 17,5 mm [0.69 in] F.P. O.P. 5,3 mm 14,7 mm [0.21 in] [0.58 in] 9,1 mm [0.36 in] 3,6 mm [0.
BZ | BA | BM | BE | 6AS Series 6AS SERIES - PREMIUM LARGE SNAP-ACTION TANDEM SWITCH ASSEMBLY The MICRO SWITCH™ 6AS Series consists of two large premium BZ/BA/BM/BE snap-action switches ganged together and actuated by a single actuator. Operating characteristics are dependent upon the type of individual switches and actuators chosen. Field adjustable operating point on one or both basic switches. Solder, A2, and T-type terminations available, along with straight, roller, and leaf levers.
MICRO SWITCH™ Premium Large Basic Switches STANDARD ACTUATOR OPTIONS, TERMINALS, & DIMENSIONS 6AS Series: Straight Lever 6AS Series: Leaf actuator 6AS Series: Roller Lever sensing.honeywell.
BZ | BA | BM | BE | 6AS Series OPERATING CHARACTERISTICS Table 3. Operating Characteristics Definitions 18 Characteristic Description Differential Travel-DT Plunger or actuator travel from point where contacts “snap-over” to point where they “snap-back.” Free Position-FP Position of switch plunger or actuator when no external force is applied. Full Overtravel Force Force required to attain full overtravel of actuator.
MICRO SWITCH™ Premium Large Basic Switches AVAILABLE TERMINALS ACTUATORS BA, BE, BM, and BZ standard snap-action switches use the actuators described: sensing.honeywell.
BZ | BA | BM | BE | 6AS Series 20 sensing.honeywell.
MICRO SWITCH™ Premium Large Basic Switches LARGE SNAP-ACTION SWITCH ACCESSORIES Brackets Description 8MA1 8MA2 17MA1-B Description Adjustable mounting bracket with adjustment slot on left Adjustable mounting bracket with adjustment slot on right Conversion mounting bracket Housing material Steel Steel Corrosion-resistant metal Measurements 60,2 mm W x 21,3 mm H x 7,4 mm D [2.37 in W x 0.84 in H x 0.29 in D] 66,8 mm W x 19,0 mm D [2.63 in W x 0.
BZ | BA | BM | BE | 6AS Series AUXILIARY ACTUATOR ORDER GUIDE Catalog Listing JR AD5721R (M8805/59) AN3169-1 ADA3721R MC2711 (M8805/59) AN3168-2 Description Use only with Overtravel min. mm [in] Operating Position* mm [in] Free Position mm [in] Roller lever for “S” plunger type BZ switches only. Permits cam operation BZ 11,1 mm [0.437 in] 44,45 mm ±3,18 mm [1.75 in ±0.125 in] – BZ, BM 11,1 mm [0.437 in] approx. 31,75 mm to 41,15 mm [1.25 in to 1.62 in] 39,6 mm to 43,7 mm [1.56 in to 1.
ADDITIONAL INFORMATION The following associated literature is available at sensing.honeywell.com: • Product installation instructions • Product application-specific information – Sensors and switches for potential HVAC/R applications – Sensors and switches for valve monitors and valve indicators WARNING PERSONAL INJURY DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury.
