International HeadquartersGermanyBernstein AGTieloser Weg 6D-32457 Porta WestfalicaPhone +49 571 793-0Fax +49 571 793-555info@de.bernstein.eu

FranceBernstein S.A.R.L.Tieloser Weg 6D-32457 Porta WestfalicaPhone +33 1 64 66 32 50Fax +33 1 64 66 10 02info@fr.bernstein.eu

DenmarkBernstein A/SSindalsvej 30DK-8240 RisskovPhone +45 7020 0522Fax +45 7020 0177info@dk.bernstein.eu

NetherlandsBernstein BVTieloser Weg 6D-32457 Porta WestfalicaPhone +31 314 366088Fax +31 314 361256info@nl.bernstein.eu

ItalyBernstein S.r.l. Via del pero 12a/bI-24040 Levate (BG)Phone +39 035 4549037Fax +39 035 4549647info@it.bernstein.eu

Great BritainBernstein Ltd (UK)Unit 1, Westgate ParkTintagel Way WestgateAldridgeWest MidlandsWS9 8EXPhone +44 1922 744999Fax +44 1922 457555info@uk.bernstein.eu

AustriaBernstein GmbH Kurze Gasse 3A-2544 LeobersdorfPhone +43 2256 62070-0Fax +43 2256 62618info@at.bernstein.eu

ChinaBernstein Safe Solutions (Taicang) Co., Ltd. North 38, Dongting Road, Taicang CityDevelopment Area,Taicang 215400Jiangsu Provice, P.R. ChinaPhone +86 512 81608180Fax +86 512 81608181info@bernstein-safesolutions.cn

SwitzerlandBernstein (Schweiz) AGSteinhaldenstrasse 14CH 8954 GeroldswilPhone +41 44 775 71 71Fax +41 44 775 71 72info@ch.bernstein.eu

HungaryBernstein Kft.Fehér utca 101106 BudapestPhone +36 1 434 2295Fax +36 1 434 2299info@hu.bernstein.eu

w w w . b e r n s t e i n . e u

Other switching technology in the Bernstein range

Foot switches

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Foot control terminal

■ FBT2 – Hygienic design for use in

medical technology

■ FBT1– Hygienic design for use in

medical technology– Plastic contact housing

■ Ti2– optimised component size

retaining the standardconnection techniques withtype of protection IP 65

■ ENK– switch standardised in

keeping with DIN EN 50041

– metal actuators

Plastic encapsulated

■ C2– Smallest switch for safety

applications

■ IF – ultra-flat and flexible with

type of protection IP 67– metal actuators

■ I88– switch standardised in

keeping with DIN EN 50047

■ Bi2– two cable entries

M 16 x 1.5

■ ENM2– switch standardised in

keeping with DIN EN 50041

Metal encapsulated

■ GC– slim-line construction

■ D– heavy-duty metal housing

for arduous applications

■ SN2– three cable entries

M 20 x 1.5

Tailor-made for your applications – the modular foot switch concept from Bernstein!Bernstein offers a wide range of foot switches to meet the exacting requirementsfound in industrial applications. With up to three pedals, with or without a safetycover (UN), the robust all-metal housing ensures a protection class of IP 65 as standard.The modular design gives you the possibility of defining application-dependent pedalfunctions with up to four contact combinations per pedal.

Additional contact combinations and pedal functions, combined with basic housings andswitching elements open up further control and operation variants. Complete units are alsoavailable for use in the explosion-protected area II 2G EEx d IIC T6 and the medical sector.Prefabricated foot switches are available on request.

Type Pedal 1 Pedal-independentaddition

F1 – Switching Additional Schalt- Zusatz- Schalt- Zusatz- Featureselements function einsatz funktion einsatz funktion

FG – Switching Additional Schalt- Zusatz- Schalt- Zusatz- Featureselements function

Pedal 2

F2 – Switching Additional Switching Additional Schalt- Zusatz- Featureselements function elements function einsatz funktion

Pedal 3

F3 – Switching Additional Switching Additional Switching Additional Featureselements function elements function elements function

Example

F3 – U1 SU1 Y U2 D UN

Additional functions

Latched switching YAfter the first pedal actuation, the contactsetting is maintained after the pedal isreleased. Only after a subsequent actuation is the contact reset again (bistable).

Pressure point D– Depression to the pressure point:

First pair of contacts switched– Depression beyond the pressure point:

Second pair of contacts switched (first contacts remain switched)

Features

Safety Guard (UN)Additional to protecting the pedal, the rear of the guard provides further space to accommodate additional elements:– Emergency Stop button– Contactor on DIN rail (as main power

switch)– Customer-specific fittings

Emergency Stop button (NA)Since the foot switch can be operated atsome distance from machines and plant, anEmergency Stop button conforming toVDE/DIN is directly available to the operatoron the command unit.

Pedal interlock (AT)The pedal can only be depressed after thevertical lever is disengaged with the foot. This prevents unintentional actuation of thefootswitch.

1. Rest2. Operation: Pedal pressed as far as the pressure point: the make

contacts are closed, the machine is started.3. Emergency situation: The pedal is depressed beyond the resistance

of the pressure point, the NC contact is interrupted and latched,(machine is stopped). Even when the pedal is released the contactis latched and remains in the off position. This reliably prevents anuncontrolled restart of the moving machine parts.

4. Disengagement: After the hazardous situation hasbeen remedied, manual disengagement (push -button on the side of the housing) releases thecontacts; the machine can then be initiated againby pressing the pedal as in pos. 2.

Safety foot switch with safety locking and manual disengagement

Basic types

F1: 1-pedal with / without safety cover (UN)F2: 2-pedal with / without safety cover (UN)F3: 3-pedal with / without safety cover (UN)

F1

F2

F3

Basic contact elements

U1Z 1NC/1NO slow make/break

SU1Z 1NC/1NO snap-action

U2Z 2NC/2NO slow make/break

SU2Z 2NC/2NO snap-action

SU1Z/UV1 DUN 1NC/2NO safety switching function

Safety switching function with pressure point, contact latch,manual disengagement and safety cover (see details below).

SU1Mi RG 1NC/1NO change-over with potentiometer

An integrated potentiometer allows linear control tasks to beperformed via a controller, dependant on the pedal position. A micro-switch is also activated, providing electrical isolation atthe rest or end position (facility exists for a further micro-switchto duplicate this function).