Security & Fire Protection Systems/Reciprocating Motion in Electric motion.


Dear Frank

1 Is it possible to achieve reciprocating Motion in Electric motor i. e. Moving forward and backward in straight line apart from conventional rotary Motion of Electric motor?.

2 If yes, Do you feel there are advantages of designing electrical products which have a reciprocating Motion?.


Hello Prashant.  I believe what you're referring to is already a reality.  A solenoid with make and break contacts on a metallic plunger would achieve the same result (forward and back motion in a linear direction).  It's used in fire alarm bells.

As to your second question, the motorized bell draws significantly more current over one that employs a solenoid to actuate the striker, so there are definite advantages in that you can install more solenoid driven bells on a signal circuit.

Hope this helps!

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Frank Kurz


Questions relating to Burglar Alarm and Security Equipment, Fire Alarm and Extinguishment Systems, Access Control, CCTV Systems, Installation, Service, Testing, Verification


30 years installing, servicing, and testing security, access control, extinguishment, and fire alarm systems

Chair of ULC Working Groups for Fire Alarm Testing (CAN/ULC-S536) and Fire Alarm Verification (CAN/ULC-S537), Executive Director of the Fire Protection Technicians Network (

Publications, Better Business Bureau Magazine, Applied Science Technologists and Technicians of British Columbia ( SUPPRESS! and Techs Fire Break Newsletters

Associate in Science; Emergency Systems (University of British Columbia); Aircraft Maintenance Technology (BCIT)

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