NBS40 – Passenger alarm devices

Emergency brake handle for rail vehicles

Wall mountpassenger alarm device
Wall mount passenger alarm device designed for remote reset for driverless or automatic train operation

The electric emergency brake handle NBS40 enables the passenger to release an emergency stop. Its conspicuous outward appearance is a quick reference point for the passenger even in a stress situation.

High-quality switching elements characterised by positive opening operation, self-cleaning contacts, and high shock and vibration resistance guarantee years of uninterrupted operation.

With its elegant and yet rugged design, this emergency brake handle is not only suitable for rail vehicles running in commuter and main-line rail service, but also for industrial applications like escalators and passenger conveyors.


  • Rugged switching device with aluminium die-cast housing and elegant design
  • Supplied with or without lettering
  • Available as rear-mounted versions without visible fasteners
    or front-mounted versions with 4 visible M5 screws
  • Device can be sealed with a lead tab
  • Fitted with 2 switching elements max. (S826 or S870) with gold or silver plated contacts

By selecting this option you finish the configuration.



NBS40 series
Mechanical endurance> 1,000 operations
Ingress protection rating, IEC 60529IP54
Vibration resistance (IEC 61373, IEC 60068)2 g, 5 ... 150 Hz
Shock resitance (IEC 61373, IEC 60068)5 g, 20 ms
Housing materialAluminium die-cast
ColourRAL 3020 red
Actuating force65 ... 120 N (not lead tab sealed)
Ambient temperature range Tu-40 °C ... +70 °C
Switching elementS826 or S870
Nominal voltage150 V
Rated insulation voltage Ui250 V
Conv. thermal current Ith10 A
StandardsEN 60077, EN 50155, VDE 0660
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Electrics for rolling stock
NBS40 – Passenger alarm devices for wall mounting