• • SAFETY

    ASI CEM	ASI CES Read Head and Actuator	ASI CET Switch
    ASI ZSA	ASI ZSB	ASI ZSM Enabling
    CES Read Head Actuator	CET	CES-A-ABA-01
    CES-A-ABA-01B	CES-A-AEA-02B	CES-A-AEA-04B
    CES-AR C	CES-A-AUBA-01	CES-A-AUBA-02B
    CES-A-AUBA-04B	CES-A-C5E and CES-A-C5H	CES-A-S5H
    CMS-E-AR, CMS-E-DR	CMS-E-BR, CMS-E-ER, CMS-E-FR	ESH Hinge Switch
    ESM Safety Modules	ESM-F Safety Modules	GMO Profi Bus
    GP Series Design Type 2	Limit NM	Multiple Limit Switches
    NM Design Type 1	NM Design Type 1	NM VZA Design Type 2
    NP Series Design Type 2	NX Series Type 2	NZ..VZ..VS Design Type 2
    NZ Design Type 1	NZ Design Type 1	NZ Series Type 2
    Rope Pull Switches	Safety GP	SFM-A01
    SFM-A02	SFM-B01	SFM-C02
    SGP Design Type 2	SGP Twin Series Type 2	STA Design Type 2
    STM Design Type 2	STF Design Type 2	STP Design Type 2
    STP TWIN Design Type 2	TK Design Type 2	TP Series Solenoid
    TX Series Solenoid	TZ Series Solenoid	ZSA
    ZSG, ZSE, ZXE	ZSR

  • AUTOMATION

    Cylinder Proximity Switch	EGT Single Hole Fixing	Inductive Identification Systems
    Inductive Multiple	Inductive Single	NG Switch
    NM Design Type 1	NZ Design Type 1	Plug Connectors
    Precision Single Plunger	Precision Multiple	Trip Dog and Rails

  • MAN MACHINE

    Electronic Key Systems	Handwheels	Joysticks
    Pendant Stations

  • OTHER

    Bolts

• • TRIP DOGS AND TRIP RAILS

    G-type Rails	Trip Dogs for Trip Rails	Trip Dog for G-Type Trip Rails
    Trip Rails

  • ELECTROMECHANICAL

    Position Switches

    Switches w/ separate Actuators

  • NON-CONTACT SAFETY SWITCHES

    Transponder - Coding	Type Series UF	Type Series UFA8
    Type Series UL

  • ENABLING SWITCHES

    Type 1 (ZSE)	Type 2 (ZSA)	Type 3 (ZSB)
    Type 4 (ZSR)	Accessories

Safety Switches

Safety switches have the task of preventing the operation of a machine in the case of a potential hazard. This task is defined in EN 1088 (Safety of machinery. Interlocking devices associated with guards. Principles for design and selection). For this purpose the safety circuit must be opened by the safety switch. Safety switches are therefore key elements of an interlocking device. In general, a differentiation is made between safety switches with safety function (design type 1 safety switches) and safety switches with separate actuator (design type 2 safety switches).

For safety switches positively driven contacts are used in the switching elements. These are special switching elements that are designed to ensure the switching contacts are always reliably separated. Even if contacts welded together, the connection is opened by the actuating force. It is a common feature of all switching elements that at least one switching element is designed as a positively driven contact. Often two positively driven contacts are employed to increase safety using the principle of duplicated design (redundancy). This dual-channel design ensures that on the failure of one channel or on a fault in the control circuit (i.e. in the machine wiring), the interlocking can still be provided with the aid of the second channel.