B 50 Q fb V2.0 Class 3+

Top design in XL format

With the B 50 large-area pushbuttoncombines a sense of touch with a gentle curve. The proud size of 58mm side length/diameter and the high variability open up new possibilities for thePossible applications: The push-button series is excellent forElevator systems with increased accessibility. IndividualDesign options round off the profile of the B 50 push-button seriesoff.

Remotely operated function test

Conforms to standardsEmergency call devices for lifts must be checked regularlyand checked for their function. Here comes theSpecial feature of the SCHAEFER emergency call button fb into play: the buttonscan be "pressed" via remote access (remote control) andcan thus be tested for their mechanical and electrical operabilitybe checked.

Integrated in aEmergency call simulation system, the push-buttons are automatically and inat defined intervals. Thanks to this technologyPersonnel and service costs for a manual on-site inspectioncan be saved. The possibility of the system the elevator emergency callautomatic and permanent monitoring, also contributes to theOperational safety of the elevator system.

The advantagesOverview:

• ideal forElevator emergency calls
• remote-controlledFunctional test
• definableExamination interval
• On-site inspection by personnel(lift attendant) not applicable
• Cost andSaving of time
• increasedOperational reliability

Class 3+

The requirementsfrom EN 81-71 Class 2 are often used for many areas of applicationis not enough. For high-frequency and especially vandalismsCHAEFER has developed special push-buttons for elevator systems at risk,which are twice as robust as required by EN 81-71 Class 2.The SCHAEFER Class 3+ complies with the EN 81-71 Class 1/Class 2 standardsas well as EN 81-72 and additionally offers higher impact resistance andwith protection class IP 54 better protection against dust and water. TheImpact strength test for SCHAEFER Class 3+ with a20 Joule/5 kg Impactors from 0.4 m drop height in contrast to 10Joule/1 kg Butt joint from 1 m drop height (according to EN 81-71 Class)2).