Standard Basic Switch, Single Pole Double Throw Circuitry, 20 A At 125 V AC, Straight Lever Actuator, 2,5 N [9oz] Maximum Operating Force, Gold Contacts, Quick Connect Termination Silver Contacts, Screw Termination, CE, CSA, DEMKO, UL

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BA Series Standard Basic Switch, Single Pole Double Throw Circuitry, 20 A at 125 V AC, Leaf Actuator, Straight Lever, 2,5 N [9 oz] Maximum Operating Force, Gold Contacts, Quick Connect Termination Silver Contacts, bottom facing #6 screws and cupwashers , CE, CSA, DEMKO, UL. Designed with a hysteresis as small as 0.008 mm [0.0003 in], the BA switch may be used in applications where very tight and sensitive control is required between the operate and release points. Internal flat spring design delivers optimum performance and switch reliability. 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 i s detected. May also be used in machine tools to limit the maximum movement for pieces of equipment. Detects whether a valve is "open" or "closed".


  • Accepted world-wide standard "Large Basic" switch
  • Low operating force and differential travel
  • Long mechanical life up to 20,000,000 cycles at 95% survival
  • Elongated mounting hole for easier, more accurate mounting
  • Current rating ranges from 15 A to 2A
  • Choice of actuation, termination and operating characteristics


UNSPSC Code 39122300

Spec Sheet

Spec Sheet

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