The models 5550 and 5550G Mechanical Switch provide basic, economical vibration protection through a simple and highly reliable spring-mass mechanism. The presence of sufficient vibration along the switch's sensitive axis triggers a change in state. This enables automatic machine shutdown or alarming. 

To restart the switch, it must be reset locally by means of a reset button (5550 only) or by applying an electrical voltage (standard for 5550G, opt. for 5550). A built-in switch-on delay suppresses tripping during start-up. 

Benefits:  

• Robust, cost-effective monitoring  

• Type 5550G especially for use in hazardous areas (gas applications) 

• Robust, reliable and cost effective  

• Ideal for machines / motors and drives with low to medium speed (<3600rpm) 

• Machine shutdown or alarm in case of strong vibrations (limit exceeded) 

• Manual or electrical reset 

• Power-on delay 

• Silver or gold plated relay contacts  

• Weatherproof housing  

• Various cable bushings and fastenings 

• Cooling tower fans 

• Fan blowers 

• Pumps 

• Gearboxes